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ping lu ji hou lun shi xiao fen xi ji qi bu jiu cuo shi
Author(s): 
Pages: 44-46
Year: Issue:  3
Journal: Ordnance Material Science and Engineering

Keyword:  平路机后轮失效分析宏观裂纹沿晶开裂;
Abstract: 采用透射电镜、能谱和离子探针等方法对平路机后轮在原地转向刹车时键槽尖角处出现的裂纹进行了测试分析。结果表明,由于晶界上产生磷偏聚,在外办作用下造成了沿晶开裂。通过采用860℃保温4h退火,避免了此类裂纹的产生。
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