Sehr geehrter Herr Mehofer
Ich wäre Ihnen dankbar, wenn Sie mir die Adresse des Schmiedes geben könnte der Eisen selbst verhüttet und wurmbunte Klinge daraus schmiedet.
Vielen Dank für die Hinweise.
Grüsse
Richard Rechsteiner
---- "[log in to unmask]" <[log in to unmask]> schrieb:
> Dear Richard!
>
> You will also find a great amount of micrographs of early medieval
> swords, short swords and spearheads in:
>
> R.F. Tylecote, Brian J. J. Gilmour, The Metallography of Early Ferrous
> Edge Tools and Edged Weapons, BAR 264, 1986.
>
> which gives a quite good overview over the smithing techniques during
> that time.
>
> If you are interested, I can give you the address of a smith, who is not
> only producing iron himself but also produced pattern welded swords of
> high quality.
>
> best wishes
>
> Mathias Mehofer
>
>
>
> Am 25.10.2010 12:55, schrieb Alan Williams:
> > Richard
> >
> > There is an extensive metallurgical bibliography on pattern-welded
> > swords. I would suggest a good place to start would be the recent book
> > by Vagn Buchwald
> > “Iron and steel in ancient times” (Copenhagen, 2005).
> >
> >
> > Robert Thomsen has published many analyses of the Danish moss-finds:
> > Thomsen, R. “Pattern-welded swords from Illerup and Nydam” 371-377 and
> > pl.xix-xxii.in “Archaeometallurgy of iron “ed. Pleiner, R. (Prague,
> > 1989).
> >
> > Idem. “Metallografiske undersoelgelser af sværd og spydspidser fra
> > mosefundene I Illerup og Nydam” Aarboger for Nordisk Oldkyndighed og
> > Historie (Copenhagen, 1992) 281-310.
> >
> >
> >
> > There are many smiths who claim to be able to reconstruct
> > pattern-welding, and some of them can, but your own research might be
> > better served if you tried to carry out the forging yourself. However
> > hideous the results may appear, you will learn more in the long run.
> >
> > Alan Williams
> >
> >
> > ----- Original Message ----- From: "Richard Rechsteiner"
> > <[log in to unmask]>
> > To: <[log in to unmask]>
> > Sent: Monday, October 25, 2010 11:24 AM
> > Subject: Pattern Visibility of pattern welded swords - Metallurgical
> > analyses of sword blades
> >
> >
> > Hello
> >
> > I’m collecting metallurgical analyses of sword blades from the time
> > 200BC to 1600AD for research. I wanted to ask you if you have any such
> > analysis: chemical components, ranges of hardness etc. of sword blades
> > within this time period. I’m interested specifically with regard to
> > pattern-welded swords if there have been any analysis carried out on
> > the composition of the different layers of metal which create the
> > pattern within the blade.
> >
> > During my research I have realised that some people attribute the
> > pattern of these swords not to a significant difference in the carbon
> > content, but to a difference in the phosphor content within the layers
> > of the blade. Do you know if there are any studies to support this
> > theory?
> >
> > I have also been trying to find out if anyone has made a replica of a
> > sword blade in general, or specifically a pattern-welded sword from
> > this period, using iron ore and methods that would have been used at
> > this time to make the blooms i.e. making a copy in the same way and
> > with the same materials and methods as the original. Not using modern
> > methods or industrial iron and steel. It’s very difficult to find such
> > smith. I’ve been looking in Switzerland, Germany, England, France and
> > USA.
> >
> > Do you know smith who makes such authentically replica? If so, could
> > you tell me his or their names?
> >
> > I’m trying to find out if the pattern on a pattern welded blade made
> > out of bloomery iron and steel would be as clear and have the typical
> > “black and white” contrast that a modern replica of a pattern-welded
> > sword or damascene knife, made from industrial alloy steel (e.g.
> > manganese steel combined with nickel steel) has. After the research
> > I’ve done I think that the originals do not have such clear-cut
> > patterns but I’m looking for more information to support this theory.
> > I’m trying to collect information from modern sword smiths who have
> > forged pattern welded blades using bloomery steel to see if their
> > experiences corroborate with this theory.
> >
> > According to the metallurgical analyses of antique and early medieval
> > pattern-welded swords that I have collected I have come to the
> > conclusion that probably the following 2 types of iron-alloy are
> > responsible for the pattern found on pattern-welded blades:
> >
> > 1. Difference in the carbon content within the different layers of the
> > blade.
> > 2. Difference in the phosphor levels within the different layers of
> > the blade.
> >
> > Find following some results of compiled data concerning carbon and
> > phosphor
> > content of antique and medieval European blades:
> >
> > -Average carbon content is about 0.20%, extremely rare over 0.5%,
> > Carbon-difference within layers extremely rare over 0.3%.
> > -Average phosphor content is about 0.11%, extremely rare 0.3% and over,
> > Phosphor-difference within layers up to about 0.3%.
> >
> > (Concerning Manganese in antique and medieval swords the average
> > content of the collected data of about 54 sword blades is only about
> > 0.025%)
> >
> > The question is, how clear would the contrast be using iron carbon
> > alloy or iron phosphor alloy within the percentages shown above and
> > not been etched with acid.
> >
> > I believe, based upon reports dating from the medieval time and the
> > lack of proof of acid application in Western Europe to bring out
> > patterns that the blades have been primarily polished to protect them
> > from rust. So the pattern would probably primarily been visible thank
> > to a good polish.
> >
> > In a letter of gratitude from the Ostrogoth king Theoderic to a king
> > of the Varni from the late 5th century A.D. it’s been written: “Their
> > polished clarity is shining so strong, that they reflect with utmost
> > clearness the faces of those who look at the. …. Their midsection,
> > skilfully wrought with hollows, appears to be covered with swirling
> > worms, and there are so manyfold shadows, that one might believe the
> > shining metal to be interwoven with many colours. This metal is ground
> > on your grindstone and polished with your most famous powder so
> > diligently, until its’ steely shine becomes a mirror for men” - This
> > Translation of the original text can be found in the very interesting
> > book from Dr. Stefan Mäders: “Stähle, Steine und Schlangen” 2009.
> >
> > Do you got any pictures of polished pattern welded swords (or
> > fragments), that have not been treated with acid to see how the
> > pattern contrast look like?
> >
> > It’s quite difficult to explain what I mean in English for me. I hope
> > you understand what I’m trying to say.
> >
> > I would be happy to hear your opinions and if you could help me.
> >
> > Kind regards
> >
> > Richard Rechsteiner
> > (Switzerland)
>
> --
> Mag. Mathias Mehofer
> Archäometallurgie
> VIAS Vienna Institute for Archaeological Science
> Archäologiezentrum
> Franz Klein-Gasse 1
> A-1190 Wien
>
> Tel. (+43 1) 4277 40312
> e-mail: [log in to unmask]
> www.univie.ac.at/vias/archaeometallurgie.html
> Skype: mathiasmehofer1
>
>
>
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