摘要
采用非自耗真空电弧熔炼方法制备Zr-0.4Fe-1.0Cr-xMo(x=0,0.2,0.4,0.6)合金材料,研究了该锆合金在室温下及350℃下的拉伸性能。Zr-0.4Fe-1.0Cr-xMo合金的强度高于Zr-1.0Sn-0.3Nb-0.3Fe-0.1Cr合金。室温下,合金的抗拉伸强度随着Mo含量的增加而降低,而350℃下,合金的抗拉伸强度随着Mo含量的增加而升高,Mo对Zr-0.4Fe-1.0Cr合金有明显的高温强化作用。形变强化指数n值随Mo含量的变化趋势与屈服强度的变化趋势相反。Mo含量对Zr-0.4Fe-1.0Cr-xMo合金拉伸性能的影响与Mo的添加引起第二相粒子特征的变化密切相关。
The Zr-0.4Fe-1.0Cr-xMo alloys were prepared by vacuum arc melting method, and its tensile properties at room temperature and 350 ℃ were measured. Results show that the tensile strengths of Zr-0.4Fe-1.0Cr-xMo alloys are higher than that of Zr-1.0Sn-0.3Nb-0.3Fe-0.1Cr alloy. With the increase of Mo content, the tensile strength decreases at room temperature whereas increases at 350 ℃, which indicates the strengthening effect of Mo on Zr-0.4Fe-Cr alloy at high temperature. The variation of the strain hardening exponent n-value with Mo content is opposite to that of the yield strength. The effect of Mo on tensile properties is related to the change of second phase particles characteristics due to Mo addition
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2013年第12期2553-2557,共5页
Rare Metal Materials and Engineering
基金
反应堆燃料及材料重点实验室基金(9140C700402)
关键词
锆合金
拉伸性能
第二相粒子
zirconium alloys
tensile properties
second phase particles
