| X80管线钢焊接接头表面自身纳米化 |
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| 引用本文： | 王宇,黄敏,毕宗岳,牛辉,高惠临.X80管线钢焊接接头表面自身纳米化[J].材料科学与工程学报,2009(3). |
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| 作者姓名： | 王宇 黄敏 毕宗岳 牛辉 高惠临 |
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| 作者单位： | 西安建筑科技大学材料学院;西安石油大学材料科学与工程学院;宝鸡石油钢管有限公司; |
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| 基金项目： | CNPC中青年科技创新基金资助项目(07E1015);;SYNL学术交流与合作研究基金资助项目 |
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| 摘 要： | 采用表面机械研磨(SMAT)技术对X80管线钢的焊接接头进行了表面自身纳米化处理,利用金相显微镜(OM)、透射电子显微镜(TEM)和X射线衍射技术(XRD)研究了表面自身纳米化处理后试样表面微观结构的变化。结果表明:经SMAT处理后,可以在X80管线钢的焊接接头表面形成一定厚度的等轴、取向随机的纳米晶粒;随距处理表面深度的增加,晶粒尺寸逐渐增大;SMAT处理时间的进一步延长对表层晶粒尺寸影响不大;SMAT处理可以实现X80管线钢的焊接接头组织的连续化和均匀化。
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| 关 键 词： | 表面机械研磨处理 X80管线钢 焊接接头 表面纳米化 |
Surface Nanocrystallization of Pipeline Steel X80 Welded Joints |
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| WANG Yu ,HUANG Min,BI Zong-yue,NIU Hui,GAO Hui-lin.Surface Nanocrystallization of Pipeline Steel X80 Welded Joints[J].Journal of Materials Science and Engineering,2009(3). |
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| Authors: | WANG Yu HUANG Min BI Zong-yue NIU Hui GAO Hui-lin |
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| Affiliation: | 1. School of Materials Science and Engineering;Xi'an University of Architecture &Technology;Xi 'an 710055;China;2. School of Materials Science and Engineering;Xi'an Shiyou University;Xi 'an 710065;3. Baoji Petroleum Steel Pipe Co.;LTD;Shanxi;Baoji 721008;China |
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| Abstract: | Pipeline steel X80 weld joints were subjected to surface mechanical attrition treatment (SMAT), and the microstructure change was examined by using OM, TEM and XRD. The results show that equiaxed nanocrystallites with random crystallographic orientations were obtained in the surface layer of the steel sample after SMAT for a short period time, and the grain size increases with the increasing depth from the treated top surface. Moreover, the grain refinement degree and the thickness of deformed layer can not... |
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