• 分析结果表明,铸锭中分布不均匀非金属夹杂物组织中过量分布晶界的贝氏体渗碳导致镦开裂的原因。

    It was revealed that: inhomogeneous distribution of the non-metallic inclusion and excessive bainite and tertiary cementite is the cause of cracking.

    youdao

  • 以上诸因素共同作用,使氏体具有直接淬火所获得的更高的硬化效应组织稳定性

    As a result of the coaction of abovementioned factors, the bainite has superior secondary hardening effect, thermal strength and structural stability to martensite formed by straight tempering.

    youdao

  • 以上诸因素共同作用,使氏体具有直接淬火所获得的更高的硬化效应组织稳定性

    As a result of the coaction of abovementioned factors, the bainite has superior secondary hardening effect, thermal strength and structural stability to martensite formed by straight tempering.

    youdao

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