热处理工艺对Ti-6Al-4V钛合金热挤压型材组织及力学性能的影响  

Effect of heat treatment on Microstructure and mechanical properties of Ti-6Al-4V titanium alloy hot extruded profile

作　　者：张君峰[1] 徐哲[1] 冯红超[1] ZHANG Jun-feng,XU Zhe,FENG Hong-chao(Baoji Titanium Industry Co.,Ltd.,Baoji 721014,Chin)

机构地区：[1]宝鸡钛业股份有限公司,陕西宝鸡721014

出　　处：《世界有色金属》2018年第2期10-10,12,共2页World Nonferrous Metals

基　　金：国家重点研发计划项目;项目名称:精密钛合金型材挤压工艺技术;课题编号:2017YFB0306203

摘　　要：热处理工艺对Ti-6Al-4V钛合金具有重要作用,可提高伸长率和抗拉强度。本文根据以往工作经验,在λ=25和λ=85两种挤压条件之下对Ti-6Al-4V钛合金进行制备,在制作工艺上选择简单退火和双重退火对钛合金进行热处理。实验结果显示,Ti-6Al-4V钛合金具有优异的综合性能,在双重热处理工艺下,可有效提高材料的强度。Heat treatment has an important effect on Ti-6Al-4V titanium alloy, which can increase the elongation and tensile strength. In this paper, based on previous experience, Ti-6Al-4V titanium alloy was prepared under two extrusion conditions of gamma =25 and gamma =85.The titanium alloy was heat treated by simple annealing and double annealing. The experimental results show that Ti-6Al-4V titanium alloy has strong adaptability, and it is beneficial to enhance the strength of the alloy under the effect of double heat treatment.

关 键 词：热处理 TI-6AL-4V钛合金 热挤压型材料 

分 类 号：TG166.5[金属学及工艺—热处理] TG146.23[金属学及工艺—金属学]