热处理方式对TC25钛合金棒材组织和力学性能的影响  

Effect of Heat Treatment Mode on Microstructure and Mechanical Property of TC25 Titanium Bar

作　　者：史小云[1] 张晓园[1] 尚金金[1] 冯益[1] 

机构地区：[1]西部超导材料科技股份有限公司,西安710018

出　　处：《材料导报（纳米与新材料专辑）》2014年第1期417-418,437,共3页

摘　　要：研究了试样坯热处理和整体热处理两种热处理方式对TC25钛合金棒材组织和力学性能的影响。结果表明:经两种方式热处理后,棒材的显微组织为双态组织,即初生α相和β转变组织。试样坯热处理后的初生α相呈短棒状,而整体热处理后的α相呈椭球状。两种热处理方式对棒材的室温、高温拉伸性能影响较大。整体热处理的室温拉伸强度、高温拉伸强度比试样坯的低。Two heat treatment modes were researched, one was sample heat treat, and the other one was inte-gral heat treat. It was shown that microstructure of bar become two-state primary a phase and transformed 13 phase af-ter heat treat. Primary a phase become short rod like after sample heat treat, and primary a phase become ellipticityafter integral heat treat. Room-temperature tensile-strength and high-temperature tensile-strength were lower after in-tegral heat treat than after sample heat treat.

关 键 词：TC25钛合金 棒材 室温拉伸 高温拉伸显微组织 

分 类 号：TG146.2[一般工业技术—材料科学与工程]