By the observation of microstructure of brake wheel, its failure is created by bigger metallurgical structure resulted by improper conditioning heat treatment and repeated face hardening.

　
英 美
  • 通過(guò)對制動(dòng)輪顯微組織觀(guān)察,制動(dòng)輪失效原因主要是由于預先熱處理工藝不當造成組織粗大以及產(chǎn)生重復表面淬火所致。
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