不同条件热处理后Ti-15-3钛合金的再结晶织构  

Recrystallization Texture of Ti-15-3 Alloy with Different Heat Treatments

作　　者：王环[1] 武保林[1] 杜兴蒿[1] 徐前刚[1] 

机构地区：[1]沈阳航空工业学院材料工程系,辽宁沈阳110136

出　　处：《机械工程材料》2008年第11期20-24,27,共6页Materials For Mechanical Engineering

摘　　要：利用三维取向分布函数(ODF)并结合光学显微镜分析了经不同热处理后Ti-15-3钛合金的再结晶织构和显微组织。结果表明:对该合金固溶冷轧板在固溶温度下进行再结晶退火,当在空气炉中加热时,再结晶过程中形成γ纤维织构,并且随着晶粒的长大,γ纤维织构更加明显,此外亦形成了{114}纤维织构;在加热速率较快的盐浴炉中加热时,再结晶进程加快,γ纤维织构形成于再结晶晶粒的正常长大过程中;在空气炉中分级加热再结晶后,形成以高斯组分为主的散乱强织构。The recrystallization texture and microstructure of Ti-15-3 alloy with different heat treatments were investigated by means of orientation distribution function （ODF） analysis and optical microscope. The results show that in the cold-rolled sheets recrystallized in conventional annealing at the solution temperature, γ fiber textures were formed during recrystallization and then became much visible with the growth of the grain. In addition, { 114} fiber textures were also generated. In the salt-bath annealing, the process of recrystallization was accelerated, and γ fiber textures developed during generally growing process of the recrystallized grains. The intensive and random textures, mainly Goss component, were formed after stage annealing.

关 键 词：Ti-15—3钛合金 再结晶 织构 加热速率 

分 类 号：TG113.12[金属学及工艺—物理冶金]