(西北有色金属研究院，西安 710016)
摘 要: 研究热等静压及热处理工艺对ZTi600高温铸造钛合金组织与性能的影响。研究结果表明：退火温度对屈服强度和抗拉强度以及塑性略有影响，经过热等静压处理后，室温拉伸塑性大幅度提高，塑性随着热等静压温度的升高而升高，强度变化较小；ZTi600高温铸造钛合金组织以针状、板条状的魏氏组织为主，热等静压后晶粒尺寸减小，局部组织有等轴趋势。
关键字: ZTi600钛合金；高温钛合金；热处理；组织；性能
（Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China）
Abstract:Effects of heat treatment and HIP process on microstructure and the properties of ZTi600 cast titanium alloy were studied. The results show that yield strength, ultimate strength and ductility will slightly vary with the annealed temperature. The ductility at ambient temperature will improve abruptly after HIP process, and it will increase with the increase of HIP temperature. The variation of strength is small. The microstructures of ZTi600 alloy are mainly composed of needle-and plate-like Widmänstaten structures. The grain sizes will decrease after HIP process, and will tend to be equaixed structures at local regions.
Key words: ZTi600 Ti alloy; high temperature titanium alloy; heat treatment; microstructure; property
