典型文献
Cold compression deformation method for reducing residual stress and uniformizing micro-property in ferrite steel
文献摘要：
To reduce internal residual stress and homogenize micro-property of hot-rolled ferrite steel,the cold compression deformation method with small reduction rate has been performed in the hot-rolled samples,and X-ray diffraction and nanoindentation test have been used to detect the residual stress and micro-property.The samples with deformation rate of 0-5.59％or annealing at 550℃are analyzed.The results show that,due to the coupling effect of thermal expansion and cold contraction and the volume expansion of microstructural transformation from austenite to ferrite,compressive residual stress was found inside the hot-rolled samples.With the increase in cold compression deformation,the dislocation density increased and the microhardness increased gradually,and there is no obvious rule for the change of mean nano-hardness in micro-zone for the center of samples.However,the uniformity of nano-hardness in the micro-zone increased first and then decreased,and the value of residual stress has obvious corresponding relationship with the uniformity of micro-zone property.The cold compression deformation with appropriate reduction rate can reduce residual stress and improve nano-hardness uniformity of the hot-rolled samples,but more deformation(such as reduction rate ε = 5.59％)makes residual stress increase and makes uniformity of nano-hardness deteriorate.
文献关键词：
中图分类号：
作者姓名：
Bo Ning;Hui-bin Wu;Gang Niu;Xin-pan Yu
作者机构：
Collaborative Innovation Center of Steel Technology,University of Science and Technology Beijing,Beijing 100083,China;Beijing Laboratory of Metallic Materials and Processing for Modern Transportation,University of Science and Technology Beijing,Beijing 100083,China
文献出处：
引用格式：
[1]Bo Ning;Hui-bin Wu;Gang Niu;Xin-pan Yu-.Cold compression deformation method for reducing residual stress and uniformizing micro-property in ferrite steel)[J].钢铁研究学报（英文版）,2022(03):503-511
A类：
uniformizing
B类：
Cold,compression,deformation,method,reducing,residual,stress,property,ferrite,steel,To,reduce,internal,homogenize,hot,rolled,cold,small,reduction,has,been,performed,samples,ray,diffraction,nanoindentation,test,have,used,detect,annealing,are,analyzed,results,show,that,due,coupling,effect,thermal,expansion,contraction,volume,microstructural,transformation,from,austenite,compressive,was,found,inside,With,dislocation,density,increased,microhardness,gradually,there,obvious,rule,change,mean,zone,center,However,uniformity,first,then,decreased,value,corresponding,relationship,appropriate,can,improve,but,more,such,makes,deteriorate
AB值：
0.425554
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