In past literature, based on the layer's hardness close to martensite's, the layer was considered martensite from abnormal temperature rise on the surface.
在以往的文献记载中，常根据其硬度接近马氏体，将其归结为拉拔过程中表面异常升温而产生的马氏体。
In past literature, based on the layer's hardness close to martensite's, the layer was considered martensite from abnormal temperature rise on the surface.
在以往的文献记载中，常根据其硬度接近马氏体，将其归结为拉拔过程中表面异常升温而产生的马氏体。
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