Title:
ポケット-ラスのマルテンサイト/オーステナイト微細構造を有する冷間加工された鋼
Document Type and Number:
Japanese Patent JP2006506534
Kind Code:
A
Abstract:
Strain-hardened steel alloys having a high tensile strength are prepared by cold working of alloys whose microstructure includes grains in which laths of martensite alternate with thin films of stabilized austenite. Due to the high dislocation density of this microstructure and the tendency of the strains to move between the martensite and austenite phases, the strains created by cold working provide the microstructure with unique mechanical properties including a high tensile strength. Surprisingly, this is achieved without the need for intermediate heat treatments (patenting, in the case of steel wire) of the steel between cold working reductions.
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Inventors:
Kushinski, Guse Goes Jay.
Thomas, Gareth
Thomas, Gareth
Application Number:
JP2004570622A
Publication Date:
February 23, 2006
Filing Date:
November 18, 2003
Export Citation:
Assignee:
MMFX Technologies Corporation
International Classes:
C21D8/06; B21C1/00; C21D1/18; C21D7/10; C21D9/46; C22C38/00; C22C38/38; C21D1/19
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita