机械能助渗铝的研究  

Study on Mechanical Energy Aided Aluminizing

作　　者：孙希泰[1] 付建设 徐英[1] 庄光山[1] 孙毅[1] 

机构地区：[1]山东工业大学材料学院材料科学系,山东济南250061 [2]山东泰安市巨菱股份有限公司

出　　处：《金属热处理》2000年第7期21-23,共3页Heat Treatment of Metals

摘　　要：利用运动的粉末粒子的机械能冲击工件表面进行助渗铝 ,将渗铝温度由 90 0～ 1 0 50℃降低到 440～ 60 0℃。渗铝层的相结构为Fe2 Al5,铝含量 (质量分数 )约为 50 %。 80 0℃× 4h扩散退火后渗铝层变为FeAl,含铝 (质量分数 )约为 30 %。机械能助渗铝件可在 780℃以下长期使用。The surface of workpieces is impacted by the mechanical energy of moving powder particles during alitizing,this method can prompt alitizing process and alitizing temperature can be decreased from 900～1050℃ to 440～600℃.The phase of the alitizing layer is Fe 2Al 5,aluminium content reach about 50%wt.The phase of alitizing layer may transform to FeAl after heating 4h at 800℃,reserved aluminium contentis about 30%wt.The workpieces processed by this method also can be used for a long time below 780℃.

关 键 词：渗铝 化学热处理 能 

分 类 号：TG156.86[金属学及工艺—热处理]