热处理制度对0Cr13Ni8Mo2Al钢组织和性能的影响  

Effect of Heat Treatment on Microstructure and Mechanical Properties of 0Cr13Ni8Mo2Al Steel

作　　者：刘天琦[1] 支敏学[1] 朱杰远 李志 赵振业[1] 

机构地区：[1]北京航空材料研究院,北京100095

出　　处：《材料工程》2002年第5期26-29,共4页Journal of Materials Engineering

摘　　要：研究了热处理制度对 0 Cr1 3 Ni8Mo2 Al钢微观组织和性能的影响。结果表明 ,含有高密度位错的板条马氏体及与基体共格的细小弥散分布的β- Ni Al沉淀析出是该钢具有高强度的主要原因。 5 3 0℃左右时效强度达到峰值 ,5 1 0℃左右时效冲击韧性处于谷值。The effect of heat treatment on microstructure and mechanical properties of 0Cr13Ni8Mo2Al steel has been studied The results show that: the lath martensite with high density dislocation and the formation of finely distributed β NiAl phase coherent with the matrix are responsible for the high strength in this steel The highest strength and the lowest impact toughness are gained on aging at temperatures about 530℃ and 510℃ respectively The embrittlement of the steel on aging is not related to decomposition of austenite

关 键 词：OCr13Ni8Mo2Al 热处理制度 微观组织 力学性能 

分 类 号：TG142[一般工业技术—材料科学与工程] TG15[金属学及工艺—金属材料]