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Title:
METHOD FOR PRODUCING LOW ELASTIC TITANIUM ALLOY SHEET AND TITANIUM ALLOY SHEET
Document Type and Number:
Japanese Patent JP2008231553
Kind Code:
A
Abstract:

To provide a method for producing a low elastic titanium alloy sheet in which only an elastic modulus is reduced while maintaining its strength, and to provide a titanium alloy sheet.

A low elastic titanium alloy sheet having a martensitic structure is produced through: a solution treatment step at a transformation temperature or above; a first cold rolling step succeeding to the solution treatment step; and a second cold rolling step using a cross system with respect to the first cold rolling. When the reduction rates (%) of the first cold rolling step and the second cold rolling step are expressed as RD1 and RD2, respectively, RD2/RD1 is 1.1 to 2.5, and also satisfies RD1RD2400. The titanium alloy is obtained by the above production method, and contains 6 to 18% vanadium.


Inventors:
MOTOJIMA FUMIHIKO
YAMAGUCHI TAKUO
HANADA SHUJI
MATSUMOTO HIROAKI
Application Number:
JP2007000076530
Publication Date:
October 02, 2008
Filing Date:
March 23, 2007
Export Citation:
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Assignee:
NISSAN MOTOR
UNIV TOHOKU
International Classes:
C22F1/18; C22C14/00; C22F1/00
Attorney, Agent or Firm:
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