【摘要】 研究了低层错能奥氏体TWIP钢的冷轧组织和织构的演变。随着应变的增加,孪晶变形机制被激活。TEM、XRD等观察结果显示:随着应变量的增加,孪晶增加。在不同应变水平上,G{011}<100>织构都占主要位置。变形初始时,B{011}<211>织构强度较低,随着应变增加其强度显著增加。而E{111}<011>、Y{111}<112>、RG{011}<011>、Cu{112}<111>、CuT{552}<115>等织构在不同应变水平呈不同变化趋势。与其他织构相比,Cube{001}<100>织构强度相当低。更多还原

【Abstract】 The microstructure and texture during cold rolling and annealing of a low stacking fault energy(SFE) austenitic TWIP steel was studied by means of transmission electron microscopy(TEM) and X-ray diffraction(XRD).The results show that with increasing strains,mechanical twinning mechanism becomes active.TEM observations show the presence of deformation twinning at low strains.As the strain increases the volume fraction of twins increases.The G{011}<100> orientation is dominant at every strain level.The B{011}<211> orientation intensity increases as strain increases,while additional texture components of E{111}<011>,Y{111}<112>,RG{011}<011>,Cu{112}<111> and CuT{552}<115> orientation develop at different strain levels.Compared to these orientations the Cube{001}<100> orientation intensity remains rather low.更多还原