硬化層深度
滲碳(tan)層(ceng)(ceng)用(yong)(yong)金相顯微鏡(jing)檢(jian)測(ce),在平衡狀態組(zu)織(zhi)下檢(jian)測(ce),硬化(hua)層(ceng)(ceng)用(yong)(yong)維(wei)氏(shi)硬度(du)計檢(jian)測(ce),國標(biao)是(shi)從(cong)表面(mian)檢(jian)測(ce)至(zhi)550HV1的距離,也有自己規定的如513HV,577HV,硬化(hua)層(ceng)(ceng)和滲碳(tan)件(jian)狀態一(yi)致,現在檢(jian)測(ce)一(yi)般都用(yong)(yong)硬化(hua)層(ceng)(ceng),不像檢(jian)滲層(ceng)(ceng)受退(tui)火制樣(yang)影響.
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