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。
The microstructure and its distribution of ribbed bar, produced by critical austenite control rolling and control cooling, were observed by means of microscope.
用金相方法观察了采用临界奥氏体控轧控冷工艺生产的带肋钢筋的组织及其分布。
The results show that polygonal ferrite, granular bainite and larger amount of stabilized retained austenite can be obtained after hot rolling.
结果表明,热轧后能够获得多边形铁素体、粒状贝氏体和大量稳定的残留奥氏体组织。
According to the experiment, the effects of rolling parameters on the extent of austenite recrystallization and grain size show a varying way in different temperature area.
在试验基础上就一般强度船板钢热变形时奥氏体再结晶百分数及晶粒尺寸与工艺参数的关系进行了研究。
A new explanation of reason why the rolling contact fatigue life can be prolonged by residual compressive stress and retained austenite was advanced.
并对残余压应力和残余奥氏体可以提高接触疲劳寿命的原因提出了新的解释。
The microstructure and strip rolling breakage of low nickel austenite stainless steel were observed and analyzed by optical microscope, SEM and electronic probe.
对节镍型奥氏体不锈钢冷轧断带进行金相显微观测和电子探针分析。
The rolling contact fatigue life, hardness, residual stresses and the amount of retained austenite of the specimens were measured.
测定了试样的接触疲劳寿命、硬度、残余应力和残余奥氏体量。
Lowering temperature window of rolling and large strain accumulation is basic condition for exceeding of critical strain for dynamic recrystallization to refine austenite grain size.
为了获得足够的应变积累来克服动态再结晶的临界应变,低温大变形量的变形是基本条件。
The calculation of the rolling poweradopts to consider the variety of the recrystallization in austenite the correction function, improve the accuracy forecast of power and energery;
轧制压力的计算考虑了奥氏体再结晶变化的修正函数,使力能预报及辊缝预设精度明显提高;
The calculation of the rolling poweradopts to consider the variety of the recrystallization in austenite the correction function, improve the accuracy forecast of power and energery;
轧制压力的计算考虑了奥氏体再结晶变化的修正函数,使力能预报及辊缝预设精度明显提高;
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