热处理对近β型钛合金显微组织及力学性能的影响  

Effect of Heat treatment on the Microstructure and Mechanical Property of Near β Titanium Alloy

作　　者：刘茵琪[1] 

机构地区：[1]洛阳船舶材料研究所,洛阳471039

出　　处：《材料开发与应用》1999年第6期9-12,13,共5页Development and Application of Materials

摘　　要：研究了固溶时效处理对近β型钛合金显微组织和力学性能的影响。采用均匀设计法进行了试验设计，用二次回归法得到了热处理工艺参数与该合金强度和韧性的定性关系。金相分析结果表明，该合金固溶时效后的组织由β基体和析出的α相组成。另外经断口分析发现，其断口特征是脆性和韧性的混合断口。In this paper, the effect of solution-aging heat treatment on the microstructure and mechanical property of near β titanium alloy was studied with the parameters optimized by the method of uniform design. The quantitative relationship between these parameters and the strength and toughness was obtained by doing quadratic regression analysis. It's shown that the microstructure is composed of β matrix and α precipitation with brittle tough mixed fracture.

关 键 词：钛合金 热处理 显微组织 力学性能 固溶时效处理 

分 类 号：TG146.23[一般工业技术—材料科学与工程] TG156.9[金属学及工艺—金属材料]