摘要
采用高温拉伸试验、均匀腐蚀试验、金相显微组织观察试验和第二相粒子统计的方法研究了Zr-4合金管材在不同退火时间后的高温拉伸性能、均匀腐蚀性能、金相组织及第二相粒子的变化规律。结果表明,退火时间在3.5-5.5h变化时,Zr-4合金管材的高温抗拉强度、屈服强度和伸长率的变化曲线趋势基本波动不大,均匀腐蚀结果略有降低,Zr-4管材内中外层的晶粒度均为11级,无异常晶粒长大组织,第二相粒子尺寸范围逐渐增大。
The effect of annealing time on the properties of Zr-4 alloy tube was studied by means of high-temperature tensile test,uniform corrosion test,metallographic observation and second phase particle statistics.The results showed that by the annealing time from 3.5 to 5.5 h,mechanical property（tensile strength,yield strength and elongation）of Zr-4 tube showed a similar trend.The grain size of the inner and outer layer of Zr-4 tube were all of grade11 without abnormal grain growth,and the size range of the second phase particle gradually increased.
作者
朱晨
ZHU Chen(Xianyang Vocational and Technical College, Xianyang 712000, Shaanxi, China)
出处
《中国冶金》
CAS
北大核心
2018年第10期19-23,共5页
China Metallurgy
关键词
退火时间
Zr-4管材
高温拉伸
均匀腐蚀
金相观察
第二相粒子
annealing time
Zr-4 tubes
high temperature stretch
uniform corrosion
metallographic observation
second phase particle
作者简介
朱晨（1984-），男，硕士，讲师；E-mail：503928903@qq．com；
