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S Narayan , A Rajeshkannan
钢铁研究学报(英文版)
An experimental investigation on the workability behaviour of sintered Fe-035C steel preforms under cold upsetting, have been studied in order to understand the influence of aspect ratio and lubrication condition on the workability process. The above mentioned powder metallurgy sintered preform wit...
关键词: powder metallurgy , failure analysis , plastic behaviour , workability
陆波，王旭青，丁建雄，汪武祥
钢铁研究学报
针对航空发动机粉末冶金旋转盘件的疲劳裂纹扩展特性，以标准紧凑拉伸试样裂纹扩展数据为基础，基于Paris公式获得了材料典型温度下的裂纹扩展参数，并利用简单件对所采用的裂纹扩展计算方法进行了验证。进行了粉末冶金旋转构件的裂纹扩展试验，继而进行断口分析，通过测量疲劳条带获得了裂纹扩展寿命。同时，采用有限元...
关键词: 粉末冶金 , stress intensity factor , crack propagation , life prediction
