TA15钛合金零件热校形方法  

Hot distortion correction method of TA15 titanium alloy parts

作　　者：曲凤[1] 

机构地区：[1]沈阳飞机工业集团有限公司制造工程部,辽宁沈阳110850

出　　处：《金属热处理》2015年第3期205-208,共4页Heat Treatment of Metals

摘　　要：研究了真空重复退火对TA15钛合金组织性能的影响;基于TA15钛合金典型零件,对其变形校正方法、校正工艺参数进行了分析。结果表明,TA15钛合金随着重复退火次数的增加,材料强度略有下降,塑性略有上升,但变化幅度不大;随退火次数增加,合金再结晶程度更加完全,残留β相的分布更加弥散,组织类型未发生变化,合金组织稳定,TA15钛合金零件可以采用热校形的方法进行变形校正。经对典型零件热校形,确定了TA15钛合金的热校形工艺参数。Effects of vacuum repeat annealing on microstructure and properties of TA15 titanium alloy were studied. Based on typical parts of TA15 titanium alloy,the distortion correction method and the process parameters were analyzed and studied. The results show that with annealing time increasing,the tensile strength of TA15 titanium alloy decreases slightly,plasticity increases slightly,but not much variation,and the recrystallization degree is more completely,residual β phase distribution is more dispersine,and the microstructure is stable. Thus TA15 titanium alloy parts can adopt hot distortion correction method to practice. The hot distortion correction process parameters of TA15 titanium alloy are determined through typical parts correction.

关 键 词：TA15钛合金 组织性能 典型零件 热校形 

分 类 号：TG166.4[金属学及工艺—热处理]