Compared with the strip produced by conventional austenite rolling, the yield strength of the ferrite rolled strip was lower by about 20%, with same elongation and strain hardening exponent.
相对于常规奥氏体轧制,铁素体轧制薄板的屈服强度下降了20%左右,伸长率及应变硬化指数与之相当。
Normalization procedure was added before the transverse rolling for improving steel austenite grain fineness and removing mischcrystal structure.
在横轧前增加正火工序,改善钢的奥氏体晶粒度,消除混晶组织。
Observations showed that the micro-structure of the steel after forging or high temperature rolling was composed of low-carbon martensite, a little part of bainite and residual austenite.
微观组织观察表明,在锻造或高温轧制状态下获得了以低碳马氏体为主,含少量贝氏体和残余奥氏体的复合组织。
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