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Failure analysis on early cracking of car speed changing box
Author(s): 
Pages: 102-105
Year: Issue:  S1
Journal: Heat Treatment of Metals

Keyword:  变速箱壳体 铸造缺陷 疲劳断裂;
Abstract: 对早期断裂失效的汽车变速箱壳体进行了显微组织、化学成分的检测及断口形貌的观察与分析。结果表明,零件承受过高的载荷作用,同时铸造缺陷的存在,降低了零件实际承载能力,导致零件发生早期疲劳断裂。
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