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TITANIUM ALLOY MEMBER DEFORMED INTO SAME DIRECTION AS WORKING DIRECTION WITH HEAT TREATMENT, AND METHOD FOR MANUFACTURING THE SAME
TITANIUM ALLOY MEMBER DEFORMED INTO SAME DIRECTION AS WORKING DIRECTION WITH HEAT TREATMENT, AND METHOD FOR MANUFACTURING THE SAME
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机译:变形为与热处理的工作方向相同的钛合金构件及其制造方法
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摘要
PROBLEM TO BE SOLVED: To provide a titanium alloy member deformed into the same direction as a working direction with a heat treatment; and a method for manufacturing the same.;SOLUTION: The titanium alloy member has such peculiarity as comprising, by mass, 5.5% to 7.5% Al and 3.5% to 5.0% Fe and the balance Ti with inevitable impurities and applying a solution treatment which cools at cooling speed of more than water cooling from a beta-transforming point or higher, and has the deforming characteristic into the same direction as the working direction. Further, a microstructure after applying a solution treatment, is composed of beta single phase or two phases of the beta phase and martensitic phase. Furthermore, the member is peculiarly made to be age-hardening to ≥50 Hv Vickers hardness while deforming into the same direction as the working direction by holding the temperature from 250°C to 500°C after deform-working.;COPYRIGHT: (C)2013,JPO&INPIT
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