固溶温度对双相不锈钢冲击功的影响  

Effects of Solution-Treatment Temperature on Impact Toughness of Duplex Stainless Steels

作　　者：墙宁 姜忠良[1] 刘秀瀛[1] 唐逎泳 

机构地区：[1]清华大学,北京100084

出　　处：《机械工程材料》1992年第1期13-17,共5页Materials For Mechanical Engineering

摘　　要：研究了双相不锈钢固溶淬火过程中组织变化对冲击韧性的影响。发现双相不锈钢在1150℃附近固溶淬火会出现一个冲击值低谷,该低谷是由于晶界存在较多的析出物造成的。C、N元素会形成碳化物和氧化物,从而使双相不锈钢冲击韧性下降。还讨论了双相不锈钢横、纵向冲击功随固溶温度变化规律不同的原因。The effects of changes in microstructures on the impact toughness of α/γ duplex stainless steels were studied. The trough of impact toughness of the steel after 1150℃ solution and water quenching were found to be due to the precipitations of carbide and nitride particles at grain boundaries.The contents of C + N negatively affected the toughness, and the reason why the longitudinal impact toughness and transversl impact toughness showed a different changing tendency with solution—treatment temperature was discussed as well.

关 键 词：固溶温度 双相不锈钢 冲击功 

分 类 号：TG142.71[一般工业技术—材料科学与工程]