21st February 2016, 04:15 PM | #121 | |
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21st February 2016, 04:56 PM | #122 | |
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21st February 2016, 05:04 PM | #123 |
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Microstructure of Steels and Cast Irons, Madeleine Durand-Charre, 2013
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21st February 2016, 05:15 PM | #124 |
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Excellent, and thank you guys again for responses to my questions. This discussion has truly developed dimensionally by the various and most salient angles you have all brought up.
While the original query tendered in this thread by Mahratt seemed to be rather straightforward and answerable in a similar response, it seemed to defy such an answer. While it became almost frustratingly clear that a direct answer to the exact or defined disappearance of old wootz making skills was not exactly placeable to such a defined time, especially universal to all wootz locations, it has been fascinating to see all these angles and facets to the problem. Mahratt, I must thank you for bringing up this most interesting topic, and for me, for prompting me to finally approach a subject I have admittedly long avoided. I also appreciate that you continue to reiterate the interactions between you and others posting as to the salient points you are discussing. Most helpful to keep the thread topic on course. Ariel, I really liked the factor you brought up as plausibly being associated in this situation, that of life span and generation diminishing of skills in accord with that of demand. While the pro and con of this theory were of course addressed , it is fascinating to see critical thinking and well presented responses placed........this is true historical detection, and all of you guys carry it through perfectly! Emanuel and Estrcrh, again thank you guys for your patient and most intriguing explanations and descriptions on the actual wootz making processes.......I think I really am starting to understand this stuff! Estcrh, you continue to amaze me at your incredible abilities at locating all these articles and material and posting the segments here, thank you! Outstanding work everyone! |
21st February 2016, 06:23 PM | #125 |
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The issue of inherent ingot patterns and the final blade patterns was discussed extensively on a Russian forum with professional bladesmiths, including the "dean" of Rusiian blademakers, Mr. Leonid Arkhangelsky. According to them, there is no doubt that the inherent structure is important, but only a true master is capable of creating complicated patterns seen on Persian and later Indian blades.
Only Persians with their secret tricks of forging were able to create rich and complicated patterns like Taban or Khorasan.. Indian masters were using a different technique: their hallmark was the "salt-and-pepper" pattern in which dendrites were crushed into small spheroidal segments. After ~17th century there was an inflow of Persian masters into India, and the patterns of Indian blades switched to the complicated Persian examples. Syrian pattern is well-known as Shams: low-contrast, short, almost straight lines. They all used the same Indian ingots, but the final results were different. Why? As bladesmiths told me it all likely depended on the technique of forging: turning the billet in a predetermined way to create twisted patterns of dendrites, keeping the pounding in the same position/direction for the Shams, or beating the hell out of it to obtain the Indian "crystalline" wootz. And on top of it, heating the billet to a certain color between forgings was also crucial. Even on the same blade one can see different patterns: even the best Taban blades always have almost "shams-y" pattern close to the edge, the result of more vigorous pounding in one direction. And that is what happens now: metallurgists can make beautiful wootz ingots with a pattern indistinguishable from the old Indian ones, but the bladesmiths do not have secret "protocols of forging" that were worked out over multiple generations by Persian masters. Anosov figured out how to make wootz ingots, but his blades had coarse and simple pattern: he did not know how to forge his material. And that is the real secret of wootz. Last edited by ariel; 21st February 2016 at 06:55 PM. |
21st February 2016, 08:45 PM | #126 |
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No Eric, of course I am not suggesting that.
My apologies as I am no smith and all I write is based on what I've learned from others. What I have been saying again and again is that the fine watery pattern seen on wootz metal is a result of the initial smelting process. Yes the pattern can be modified mechanically through forging of the cake/ingot/billet into a bar or blade, or whatever at a later stage. The point is that if the smelting process was successful, the basic pattern will be there in the cake as soon as you remove it from the crucible. Temperature control and correct charging of the crucible seem to be the critical factors to getting a good quality steel with a pattern. The forging process is a separate thing altogether. Temperature control is again key to maintain small grain in the material. Large grain will make it brittle. The process for forging a wootz vs. non-wootz billet will be similar but the range of temperature a wootz billet will take is smaller since the pattern breaks down at higher temperatures. A bladesmith that does not know these temperature constraints will ruin the fine wootz pattern no matter what he does. Here is a nice summary of the process from Greg Obach, who is also on this forum. http://users.unitz.ca/gthomas/myweb4...n_of_wootz.htm |
21st February 2016, 10:54 PM | #127 | |
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22nd February 2016, 02:17 AM | #128 |
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It sounds to me like Pavel Anosov (1796-1851) was primarily involved in research on the technology of crucible steel creating bulat/wootz while he was working at Zlatoust. The apparently highly regarded swords that were created using his findings in creating bulat were not only regarded as examples of 'fine art' but superior in their combat performance vs. those with steel from Solingen, Toledo and London .
From what I read he found four ways of producing the bulat steel, including direct reduction from ore; decarburization of cast iron with iron oxide; melting cast steel into mold and reacting iron and carbon in crucible. As, again, I am not a metallurgist I would note only that these do not seem to include 'forging'. Yet the bulat steel blades used with his processes seem profoundly highly regarded, and as 'art', so I miss the point on any deficiency regarding his not knowing how to forge the steel. Apparantly he made some blades himself for some of the more prominent researchers also engaged in wootz studies, and those were also highly regarded. Also it seems that the noted detractions in his research material were apparently deliberate as he was guarding the secrets of his discoveries, which were indeed 'lost' again for a time after his death. It certainly sounds like his blades, and research were highly regarded, and again most interesting to learn more about the bulat history. I had heard of it before but was not sure of connections in the wootz matters. |
22nd February 2016, 03:09 AM | #129 |
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Jim,
Anosov shoud be honored for his re-discovery of the process of obtaining raw wootz material and his insight that it should be forged at low temperatures. However, he simply did not have access to the old "recipe" of forging complex patterns ( akin to Taban/Khorasan). In his defence, only one of the contemporary wootz smiths is capable of doing it, and doing it with long blades. There is a lot of information on Anosov's blades in the new book by Kirill Rivkin. He also characterizes them as pretty simple . AFAIK, his blades were never produced for mass use or export; he made only a few examples. I am unaware of his blades being used as fighting implements anywhere in the world. He published his report in 1841, but was transferred as a governor to Tomsk in 1847, where he could not continue his work. After his departure production of bulat in Zlatoust has stopped: his instructions about the process were deliberately brief and incomplete. A couple of workers in Zlatoust who actually did the job, produced a small number of blades, and then it was just like in India and Iran: skill transfer stopped and the secret was lost again. As an example of Anosov's bulat ( wootz) work, here is his famous hunting knife that he presented to British geologist Murchison who visited Zlatoust. It was sold at Sothebys (?) for something like 50,000 GBP ( I might be wrong here, but the sum was obscenely high) Another one is his shashka: look at the pattern, pretty coarse and simple. It is bulat, no doubt, but in the best possible case it is Sham. Last edited by ariel; 22nd February 2016 at 04:13 AM. |
22nd February 2016, 08:54 AM | #130 |
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Anosov received high quality wootz in a factory scale. Bulat (wootz) producted, blades - forged. Here is their description: "The tracery wootz are small, dark background - Taban"; "Large tracery wootz - Kara-Khorasan"; "Explicit patterns and large - Kara-Taban". Wootz steel production at the Zlatoust arms factory was massive. No wonder that Paul Petrovich Anosov in 1841 in preparation for printing his essay "On the Bulat" abandoned old Asian names, and introduced a new - "Russian Bulat (wootz)".
In Zlatoust weapon factory owned wootz steel forging technology, were able to properly temper the metal. Finished blades has a surprisingly high resistance and elasticity. In 1839, its wootz weapons exhibited in St. Petersburg. Russian Bulat (wootz) gets great reviews at the third Moscow manufactory exhibition in 1843. Blades of Anosov Bulat (wootz) we tried to buy in collection of rich collectors of weapons of the 19th century. Excellent reviews can be heard on all sides. For example, in 1851 at an exhibition in London exhibited Anosov wootz blades. It is known that personally Anosov was made more than two dozen blades sabre and a plurality of blades knife of the Russian damask steel with excellent designs and Khorasan Kara-Taban. The fate of most of them is still unknown. Previously, a fairly complete collection was kept in the Hermitage, but now there is only one sword (Kara-taban) - Grand Duke Mikhail Pavlovich. Once in 1847, Pavel Petrovich Anosov leaves the production plant in Zlatoust damask steel is sharply reduced. An indispensable assistant in smelting wootz Anosov was a master, Nikolai Shvetsov. After retiring Anosov he continued to producted wootz, but he was secretive man, and passed the secret of its manufacture only the eldest of his four sons (also, incidentally, worked as a blacksmith in Zlatoust), Pavel Shvetsov. In the 1850s, damask steel Zlatoust has made only by special order. This is attributed to the fact that at that time started a broad campaign for casting artillery barrels, to which all industrial reserves of the country were thrown. |
22nd February 2016, 12:15 PM | #131 |
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I would love to see a documented Anosov's blade with Taban or Khorasan pattern. In the absence of such, quotations from popular magazines carry very little value.
Not for nothing he presented his creations as "Russian bulat" instead of specific names. All of them that I know were of a simple Sham structure. |
22nd February 2016, 02:21 PM | #132 |
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22nd February 2016, 05:23 PM | #133 |
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Ariel, I must thank you for the detailed and well explained perspective on the obviously very complex circumstances of wootz and the many variations of its product blades.
Mahratt, I also thank you for the interesting perspective that you present on Anasov as well. As someone who has studied weapons as long as I have, it is really a great pleasure to finally have a grasp of this complicated subject matter in at least much better degree. What I truly appreciate is the inherent knowledge of the history and scientifically oriented substance on these subjects displayed by you guys as well as Estcrh, Emanuel and Kronckew.......I admire that very much. While most of this data seems historically stable, there do seem to be some differences in the perceived nature of the blades in the type of patterns produced etc especially as concerns the profoundly important work of Mr. Anasov. While these differences seem to be inconclusively determined, especially as these are mostly no longer available, or as it seems, several had been with further examination pending, these factors of course would be subject to varying views depending on the reviewer. What is most beneficial to myself and other readers as these things are discussed, is the well thought out and presented views as seen here, which give us excellent perspective and supportive evidence for all sides. It does seem almost metaphoric as these discussions are in essence being forged much as the blades, and being crafted in sort of the same way. Fascinating! |
22nd February 2016, 09:14 PM | #134 | |
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I understand that many in the forum do not speak Russian, so I give the translation, the selected phrase: 1) etching on the plate (wootz) were large curls (tracery), "Kara-Khorasan". Another experiment was repeated with a simple iron. The same result was obtained. Resulting in a small plate wootz was also a "Kara-Khorasan". 2) Get the "Taban" (think about it, "Kara-Taban") with medium curls (tracery) and a dark background. |
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22nd February 2016, 09:31 PM | #135 |
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mahratt,
I am wondering why you use space on Vikingsword with Russian texts, whom only a handful of the members can read - maybe. If you want to quote thise texts, you should translate them to English - which is the language on this forum - or leave them out. |
22nd February 2016, 09:45 PM | #136 | |
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At the same time, I specifically gave at the beginning of the translation. Once again, I apologize |
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22nd February 2016, 09:47 PM | #137 |
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I have shown pictures of 2 Anosov's blades: both are Sham.
Any PICTURES of documented Anosov's blades with Taban or Khorasan? Nothing less than that will suffice. |
22nd February 2016, 10:06 PM | #138 | |
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I showed pages of authentic books Anosov of wootz (1841). I hope no one will argue that Anosov - written with no errors? (He understood the wootz) At the same time, I did not say that did not Anosov damask blades of Wootz steel such as "Sham". There were more than other blades. But did Anosov and "Kara-Khorasan" and "Taban". On one blade of the "Kara-Khorasan" had 10-20 blades from "Sham". Can someone show 10 blades Anosova? I think the analogy is clear? Blades Anosov save too little. But Hermitage has blade Anosov of wootz steel "Kara Khorasan". Anyone can go to St. Petersburg and look at this blade. |
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22nd February 2016, 10:32 PM | #139 |
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The excellent entries continue, and Mahratt thank you for adding the translated captions to the Russian sources you provide.
However, you and Ariel are digressing from the theme of the thread. As I have stated I am enjoying learning more about wootz, but while I think we have properly saluted Pavel Anosov for his outstanding contributions to bulat, I believe we can leave behind the business about which type of blades were produced by him. Perhaps you and Ariel might find a way to return to the wootz topic beyond the Anosov fixation ? Thanks again for the great entries outside this digression, and I think the conflicting views as I noted, give good perspective which might be pursued outside this discussion. |
22nd February 2016, 10:45 PM | #140 |
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The REAL modern wootz!
I give you examples of bulat blades by a Georgian master Zaqro Nonikashvili. Last edited by Jim McDougall; 23rd February 2016 at 12:02 AM. Reason: confrontational wording |
22nd February 2016, 10:47 PM | #141 | |||
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Here is an excerpt from Ann Feuerbach's "Damascus Steel and Crucible Steel in Central Asia" American Society of Arms Collectors Bulletin 82.
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So the ore would have been important to the extent that it included trace amounts of manganese, silicon, phosphorus and other elements. These trace elements facilitated the creation of the dark bands seen in Kara Khorasan pattern. Greg Obach experimented with steels with trace quantities of these elements. See his results and decide if it's Khorasan or not Simplistically then, we're discussing a base dendritic pattern in a high-carbon steel that is the result of the metal smelting process, through more or less slow cooling of a crucible charge heated to mostly liquid phase. This is followed by a mechanical deformation of this pattern through the forging process, either by fullering, or grinding/cutting grooves into the blade. The grooves are flattened, resulting in the Mohamed's Ladder pattern. The same fullering process would be used on a homogeneous plain steel blade, you just don't get any pattern. I guess the original Ladder pattern was simply the by-product of the drawing out process of the cake to a bar that could become a blade. A fuller may have been used at first to move the metal, while later grooves might have been cut into the bar on purpose to expose deeper layers and accentuate the patterns. As far as I'm concerned then, Anosov understood the first step, producing the high-carbon crucible steel with visible pattern. He may not have known which trace elemental amounts were most effective at producing the darker contrast bands due to the technical limitations of his age. Whether or not Anosov replicated the precise mechanical deformation in the second step is irrelevant to me. Modern smiths now understand both steps pretty well. Does the "secret" of whether you should strike the blade 40 times this way as opposed to 50 times the other way really matter? Last edited by Emanuel; 22nd February 2016 at 11:00 PM. |
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22nd February 2016, 10:56 PM | #142 |
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Very well said Emanuel!!! Thank you!!!
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22nd February 2016, 11:04 PM | #143 |
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Thank you, Emanuel!!!
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23rd February 2016, 12:46 AM | #144 | |
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http://ceroart.revues.org/2557?lang=en |
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23rd February 2016, 12:55 AM | #145 |
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Mind you, my comment is specifically about the kirk narduban, not the kara khorasan.
Thank you Ariel and Eric! Magnificent stuff! Last edited by Emanuel; 23rd February 2016 at 01:42 AM. |
23rd February 2016, 01:18 AM | #146 |
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Indeed, magnificent!
Just to think that the guy managed to reproduce the most difficult wootz patterns without having any theoretical ( written) or practical ( apprenticeship) help. This is a work of a true genius. He is a Mozart of wootz. |
23rd February 2016, 12:06 PM | #147 |
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Salaams All, There is compelling evidence from all quarters in this very excellent thread for reasoned thoughts on the decline of Wootz including the invasion of central Asia thus the drop in demand..and the demographic detail illustrated graphically on the suspected demise of participants...I believe all of them. I suggest one was the trigger (drop in demand) and the other caused the specialty to vanish.(see paragraph 3 below)
On the demise of Wootz in particular I would point to the traditional aspect in craftsmanship of taking the children into a apprenticeship routine from a very young age and passing them out at about 16 years old as fully trained artesans. This means that the graph illustrated above is not so much floored but enhanced since the apprentice age factor or the point in the graph between perhaps 5 and 10 years old (at the point the Wootz making stops) breaks the traditional passing down of the technique... and destroys the apprenticeship concept. Thus as Ariel points out ..."It Withers". How quickly can a passed down tradition vanish?... Take the Omani Weaving specialization which all but vanished and except for the intervention my one single individual it would have sunk without trace. The same could be said about silver-making in Oman when the leader of the country had to intervene by having at least one son of the silver-maker learn the apprenticeship... It is therefor very easy to lose these traditional methods very quickly since the apprentice window is very narrow and in particular when they are not written down. It would appear that Wootz blade manufacture fell under similar constraints. Without the demand and then without the apprenticeships the art was lost. In support of the very quickly lost art of Wootz manufacturing please see http://www.tms.org/pubs/journals/jom...even-9809.html ( also noted at #132 by Emanuel) Quote."The smiths that produced the high-quality blades would most likely have kept the process for making these blades a closely guarded secret to be passed on only to their apprentices".Unquote. Regards, Ibrahiim al Balooshi. Last edited by Ibrahiim al Balooshi; 23rd February 2016 at 12:31 PM. |
23rd February 2016, 01:04 PM | #148 | |
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I do not believe the top 2 images shown in above Post#140 are modern production. The lower image is more like it. I think the 2 above are closeups of genuine antique blades added for marketing purposes, as to show what wootz/bulat looks like, casually adding Zaqro Nonikashvili name into association. |
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23rd February 2016, 01:45 PM | #149 | |
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... just to be clear on who's who. |
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23rd February 2016, 01:54 PM | #150 |
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here's closeup of a modern Indian-made Kard that can be picked up for under $200, and not the best by far. There are wootz(?) ingots with better "structure" readily available for less than $100. I do not understand what is the big deal with Russian geniuses creating unimaginable bulat masterpieces? Are they any different or am I missing something?
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