表面机械研磨处理对X80管线钢焊接接头组织与性能的影响
Influence of Surface Mechanical Attrition Treatment on Microstructure and Properties of X80 Pipeline Steel Welded Joints
摘 要
采用表面机械研磨处理(SMAT)技术对X80管线钢焊接接头进行了30,60及90 min表面纳米化处理,分别采用光学显微镜、X射线衍射仪、表面粗糙度仪及显微硬度计等研究了SMAT不同时间后X80管线钢焊接接头的显微组织、晶粒尺寸、表面粗糙度及显微硬度的变化.结果表明:SMAT不同时间后均可在X80管线钢焊接接头表面获得一定厚度的塑性变形层,且随着SMAT时间的延长,塑性变形层厚度逐渐增加,实现了焊接接头的表面纳米化(组织均匀化);SMAT可以显著提高焊接接头表面的显微硬度,使显微硬度沿深度呈梯度分布;SMAT还可改善焊接接头表面粗糙度,随SMAT时间的延长表面粗糙度逐渐减小.
焊接接头
表面机械研磨处理
X80 pipeline steel
welded joint
surface mechanical attrition treatment(SMAT)
Abstract
X80 pipeline steel weld joints were subjected to surface nano-crystallization for 30,60 and 90 min by using surface mechanical attrition treatment (SMAT) technology,and the changes of the microstructure,grain size,surface roughness and the micro-hardness were examined by using OM,XRD,roughmeter and hardness tester.The results show that the plastic deformation layer with a certain thickness could be achieved at the surface of X80 pipeline steel welded joints after SMAT for different times.The thickness of plastic deformation layer increased with the increase of the SMAT duration.The nano-crystallization could be realized at the surface of X80 pipeline steel welded joints.The surface microhardness and roughness of X80 pipeline steel welded joints were also significantly improved by SMAT.The microhardness showed a gradient distribution in the thickness direction and the roughness decreased with the increase of the SMAT duration.
中图分类号 TG115
所属栏目 新材料 新工艺
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
收稿日期 2008/10/10
修改稿日期 2009/4/21
网络出版日期
作者单位点击查看
备注王宇(1963-),男,湖北京山人,副教授.
引用该论文: WANG Yu,HUANG Min,GAO Hui-lin,Lv Xiang-hong. Influence of Surface Mechanical Attrition Treatment on Microstructure and Properties of X80 Pipeline Steel Welded Joints[J]. Materials for mechancial engineering, 2009, 33(8): 50～53
王宇,黄敏,高惠临,吕祥鸿. 表面机械研磨处理对X80管线钢焊接接头组织与性能的影响[J]. 机械工程材料, 2009, 33(8): 50～53
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参考文献
【1】薛小怀,周昀,钱百年,等.X80管线钢焊接粗晶区组织与韧性的研究[J].上海交通大学学报,2003,37(12):1854-1857.
【2】柳锦铭,张玉凤,王东坡,等.X65管线钢对接接头的疲劳性能[J].焊接学报,2004,25(5):56-59.
【3】李云涛,杜则裕,陶勇寅.高强管线钢的焊接性及其焊接接头的耐腐蚀性[J].焊接技术,2004,33(4):25-28.
【4】高惠临,董玉华,冯耀荣.油气管线钢的焊接局部脆化及其预防[J].机械工程学报,2001,37(3):14-19.
【5】张玉凤,柳锦铭,霍立兴,等.超声冲击方法提高焊接接头疲劳强度[J].天津大学学报,2005,38(8):749-752.
【6】李荣锋,祝洪川,李立军,等.爆炸处理消除X70管线环焊缝焊接残余应力的研究[J].焊管,2002,25(4):25-32.
【7】LU K,LU J.Surface nanocrystallization (SNC) of metallic materials-presentation of the concept behind a new approach[J].J Mater Sci Technol,1999,15:193-197.
【8】雍兴平,刘刚,吕坚,等.低碳钢表面纳米化处理及结构特征[J].金属学报,2002,38(2):157-160.
【9】吕爱强,张洋,李瑛,等.表面纳米化对316L不锈钢性能的影响[J].材料研究学报,2005,19(2):118-124.
【10】张淑兰,陈怀宁,林泉洪,等.工业纯钛焊接接头的表面纳米化及其性能[J].焊接学报,2005,26(3):73-77.
【11】ZHOU L,LIU G,MA X L,et al.Strain-induced refinement in a steel with spheroidal cementite subjected to surface mechanical attrition treatment[J].Acta Mater,2008,56:78-87.
【12】冯淦,石连捷,吕坚,等.低碳钢超声喷丸表面纳米化的研究[J].金属学报,2000,36(3):300-303.
【13】KLUG H P,ALEXANDER L E.2nd X-ray Diffraction Procedures for Polycrystalline and Amorphous Materials[C].New York:Wiley,1974:661-662.
【2】柳锦铭,张玉凤,王东坡,等.X65管线钢对接接头的疲劳性能[J].焊接学报,2004,25(5):56-59.
【3】李云涛,杜则裕,陶勇寅.高强管线钢的焊接性及其焊接接头的耐腐蚀性[J].焊接技术,2004,33(4):25-28.
【4】高惠临,董玉华,冯耀荣.油气管线钢的焊接局部脆化及其预防[J].机械工程学报,2001,37(3):14-19.
【5】张玉凤,柳锦铭,霍立兴,等.超声冲击方法提高焊接接头疲劳强度[J].天津大学学报,2005,38(8):749-752.
【6】李荣锋,祝洪川,李立军,等.爆炸处理消除X70管线环焊缝焊接残余应力的研究[J].焊管,2002,25(4):25-32.
【7】LU K,LU J.Surface nanocrystallization (SNC) of metallic materials-presentation of the concept behind a new approach[J].J Mater Sci Technol,1999,15:193-197.
【8】雍兴平,刘刚,吕坚,等.低碳钢表面纳米化处理及结构特征[J].金属学报,2002,38(2):157-160.
【9】吕爱强,张洋,李瑛,等.表面纳米化对316L不锈钢性能的影响[J].材料研究学报,2005,19(2):118-124.
【10】张淑兰,陈怀宁,林泉洪,等.工业纯钛焊接接头的表面纳米化及其性能[J].焊接学报,2005,26(3):73-77.
【11】ZHOU L,LIU G,MA X L,et al.Strain-induced refinement in a steel with spheroidal cementite subjected to surface mechanical attrition treatment[J].Acta Mater,2008,56:78-87.
【12】冯淦,石连捷,吕坚,等.低碳钢超声喷丸表面纳米化的研究[J].金属学报,2000,36(3):300-303.
【13】KLUG H P,ALEXANDER L E.2nd X-ray Diffraction Procedures for Polycrystalline and Amorphous Materials[C].New York:Wiley,1974:661-662.
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