摘要
从钛合金α片的长度、宽度以及长宽比等显微组织特征的统计分析入手,系统、定量地探讨了热处理工艺对于Ti-3Al-5Mo-5V钛合金显微组织的影响规律。结果表明,Ti-3Al-5Mo-5V钛合金显微组织对退火温度的变化较为敏感,在一定温度范围内,退火温度的升高或退火时间的延长,将引起片状α晶粒发生规律性演变,在800℃退火,显微组织有转变为魏氏组织的趋势,在820℃退火时显微组织极易变为魏氏组织。
Effects of heat treatment processes on microstructure of Ti-3Al-5Mo-5V titanium alloy were investigated systemically and quantitatively,by using statistic analysis on the microstructure characteristics,such as length,width and the aspect ratio(length/width) of αplatelet.The results show that,the microstructure of Ti-3Al-5Mo-5V titanium alloy is sensitive to heating temperature and holding time.In a certain range of temperature,the length,width and the aspect ratio ofαplatelet changed regularly with the increase of temperature or extension of holding time.The microstructure tends to transform into widmanstatten structure beyond a certain temperature.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2006年第z1期313-316,共4页
Journal of Materials Engineering
关键词
钛合金
热处理
显微组织
统计
titanium alloy
heat treatment
microstructure
statistics
