Method of making "Damascus" blades

Details Method of making "Damascus" blades Method of making "Damascus" blades

1992-01-29

1993-02-09

Yee, Deborah

Metal treatment

Process of modifying or maintaining internal physical...

With casting or solidifying from melt

148540, 148543, 148544, C21D 942, C21D 800

Patent

active

051850443

ABSTRACT:
A method of making a steel article having a "Damascus" surface pattern wherein a steel melt comprising about 1.0 to about 2.0 weight % carbon is solidified to form an ingot, the ingot is heated between about 1100.degree. to about 1299.degree. C. for a time at temperature of about 5 to about 12 hours, a malleable envelope is formed about the ingot separately or concurrently with the heat treatment, and the enveloped ingot is shaped (e.g., forged) initially at an ingot temperature above the A.sub.r-gr temperature but below the liquidus temperature and then at an ingot temperature below the A.sub.cm temperature. The envelope is then removed from the shaped ingot.

REFERENCES:
patent: 4399611 (1983-08-01), Maringer
patent: 4881430 (1989-11-01), Hubbard
J. Wadsworth and Oleg D. Sherby, "On the Bulat-Damascus Steels Revisited", Prog. Mat. Sci., vol. 25, pp. 35-56 (1980) Great Britain.
N. Belaiew, "Damascene Steel", Journal Iron Steel Institute, vol. 97, pp. 417-439 (1918).
Zschokke, "Du Dammasse et des Lames de Damas", Rev. Met., vol. 21, pp. 635-669 (1924).
Carlo Panseri, "L'aciaio di Damasco nelle leggenda e nella realta", Armi Antiche, vol. 3, p. 3 (1962).
Smith, "A History of Metallography", pp. 14-39, Univ. of Chicago Press, Chicago.
Piaskowski, "Metallographic Examination of Two Damascene Steel Blades", J. Kist. Arabic Sci., vol. 2, pp. 2-30 (1978).
D. T. Peterson, H. H. Baker and J. D. Verhoeven, "Damascus Steel, Characterization of One Damascus Steel Sword", vol. 24, pp. 355-374 (1990).
Leo S. Fieiel, "On Damascus Steel", Atlantis Arts Press, (1991), Atlantis, Fla.

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