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OALib Journal期刊
ISSN: 2333-9721
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Nb微合金化Fe14Si2高硅钢温轧板织构演变规律
DOI: 10.3724/SP.J.1037.2013.00492, PP. 1411-1415
Keywords: Fe－6.5%Si,织构,Nb微合金化,细晶,Fe14Si2
Abstract:
采用Nb对Fe－6.5%Si(质量分数)高硅钢进行微合金化处理,结果表明Nb在高硅钢薄板制备过程中细晶效果明显.铸态、锻态和热轧态组织的晶粒分别细化了17.50%,24.51%和30.13%.铸态样品压缩强度由1365MPa提高至1520MPa,延伸率提高77.78%;温轧板试样室温拉伸强度由573MPa提高至621MPa,延伸率提高44.44%.利用XRD对厚度为0.30－1.68mm的温轧板的板面织构演变过程进行跟踪测量,结果发现初始织构以(011)Goss织构为主,单道次变形量为26.2%的情况下,Goss织构完全转化为(100)旋转立方织构,随后,在单道次变形为22.6%的情况下,旋转立方织构完全转化为{111}面织构,即纤维织构,并稳定保持至0.30mm.
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