其高温回火脆性是晶界上m_6c碳化物的析出长大和由此所产生的晶界磷偏聚共同作用的结果。
The tempering embrittlement results from the precipitation and growth of M_6Ccarbides particles and the segregation of phosphorus at prior austenite grain boundaries.
下贝氏体组织在高应力磨料磨损下比相同硬度，或稍高硬度的回火马氏体组织具有较高的耐磨性，但在低应力磨损下表现为不利的作用。
Bainite has higher abrasive wear resistance than tempered martensite with equal or higher hardness in hard abrasion, but in reverse in soft abrasion.
应用可靠案件技术分析了回火防止丧失阻火作用的原因，提出了确保回火防止器安全可靠性的具体措施。
The reliability technique is used to analyse why the back fire preventer failed to stop the fire. Specific measures have been proposed to guarantee the safety reliability of the back fire preventer.
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