摘要
通过热力学计算软件Thermo-Calc 2023a、场发射扫描电子显微镜(FESEM)等进行第二相析出模拟和金相、性能检测分析:氮含量在0.013%时,07Cr18Ni11Nb凝固时氮的析出相主要有Nb(CN)、(Cr∶Ni∶Si∶N)复合相和σ相。随着氮含量增加到0.055%时,氮的析出相主要有Nb(CN)、(Cr∶Ni∶Si∶N)复合相,Z相也出现,晶粒有逐渐减小的趋势。室温25℃和高温600℃下屈服强度和抗拉强度都有所增加,但是屈服强度增加的幅度较抗拉强度多。
Thermodynamic calculation software Thermo-Calc 2023a and field emission scanning electron microscope(FESEM)were used to simulate the second phase precipitation and detect and analyze the metallography and properties.When the nitrogen content is 0.013%,the nitrogen precipitated phases of 07Cr18Ni11Nb during solidification are mainly Nb(CN),(Cr∶Ni∶Si∶N)composite phase andσphase.With the nitrogen content increasing to 0.055%,the precipitated nitrogen Nb(CN),(Cr∶Ni∶Si∶N)composite phase,Z phase also appeared,and the grain size gradually decreased.Both yield strength and tensile strength increase at room temperature 25℃and high temperature 600℃,but the yield strength increases more than the tensile strength.
作者
刘天增
李具仓
潘吉祥
梁瑞
孟强
LIU Tianzeng;LI Jucang;PAN Jixiang;LIANG Rui;MENG Qiang(Jiuquan Iron&Steel(Group)Co.Ltd.,Jiayuguan 735100,China)
出处
《甘肃冶金》
2024年第3期106-110,共5页
Gansu Metallurgy
基金
甘肃省科技计划资助项目(21ZD3GB001)。
