对840d车轮辐板孔疲劳断口形貌进行观察并测量疲劳弧线间距。
The fracture surfaces of 840d wheel web with a hole have been investigated and the intervals of fatigue line also have been measured.
利用扫描电镜对失效压铸模具热疲劳裂纹的宏观、微观、断口形貌进行了分析。
The macro-morphology, micro-morphology and fracture morphlogy of failure die casting dies were analyzed.
本文还对裂纹扩展途径与断口形貌之间的关系进行了分析，对进一步研究低温用钢的疲劳特性和低温下工程结构的失效分析具有重要意义。
We also analyse the relationship between crack growth track and fractography. Thereforde, it is significant for studying the fatigue property of the steel used and its fatigue analy…
本文还对裂纹扩展途径与断口形貌之间的关系进行了分析，对进一步研究低温用钢的疲劳特性和低温下工程结构的失效分析具有重要意义。
We also analyse the relationship between crack growth track and fractography. Thereforde, it is significant for studying the fatigue property of the steel used and its fatigue analy…
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