含氮马氏体的低温时效  

Nitrogenmartensite Aging at Low Temperature

作　　者：郑海梅[1] 李春阳[1] 王建[1] 张勇[1] 

机构地区：[1]天津大学材料科学与工程系

出　　处：《金属热处理学报》1998年第2期1-5,共5页

摘　　要：采用纯铁片渗氮、淬火及低温回火制得了含有α″Ｆｅ１６Ｎ２、γ′Ｆｅ４Ｎ、含氮马氏体以及残余奥氏体等不同组分的ＦｅＮ薄片。利用显微硬度计、Ｘ射线衍射仪及透射电镜分析了含氮马氏体在不同温度下的时效过程以及亚稳氮化物α″Ｆｅ１６Ｎ２相的析出特征。FeN plate consisted of different phases including α″Fe16N2,γ′Fe4N,nitrogenmarensite and retained austenite was prepared by nitriding pure iron plate, quenching and tempering at low temperature. Characteristics of aging nitrogenmartensite at different temperature and the precipitation of the transition phase were analysed by microscopic hardness, X ray diffraction and TEM analysis.

关 键 词：马氏体 Fe-N合金 显微硬度 时效 

分 类 号：TG156.92[金属学及工艺—热处理] TG156.92[金属学及工艺—金属学]