The steels can obtain better strength and toughness by subsequent air cooling after hot forging or rolling without any heat treatment.
本钢种无需经过任何热处理，经锻轧后空冷就能达到较好的强韧性。
Usually, excellent Superplasticity of Zn-Al eutectoid alloy could be obtained by pre-deformation (rolling or forging).
锌铝共析合金具有良好的超塑性，但通常需要经过预变形(轧制或锻压)来得到。
In bulk deformation processes such as forging, rolling, extrusion, and wire drawing there is an intentional change in the thickness or the lateral dimension of the workpiece.
大部分的变形过程如：锻造，轧制，挤压和拉丝都有同样的过程就是有意使工件的厚度或外部尺寸发生变化。
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。
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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