| 超细晶粒钢的焊接方法及接头组织特征 |
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| 引用本文： | 张贵锋,苗慧霞,张建勋,裴怡,肖克民,杨永兴.超细晶粒钢的焊接方法及接头组织特征[J].焊管,2007,30(2):39-43. |
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| 作者姓名： | 张贵锋 苗慧霞 张建勋 裴怡 肖克民 杨永兴 |
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| 作者单位： | 西安交通大学,焊接研究所,西安,710049 |
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| 摘 要： | 作为新一代高性能钢铁结构材料代表的超细晶粒钢,因其晶粒的超细化从而实现了性能的强韧化,但在焊接时,面临的最大障碍是热影响区晶粒过度长大.系统分析了超细晶粒钢焊接接头的组织特征和焊接性,对超细晶粒钢焊接方法进行了新的分类:组织保存型焊接工艺与同性能焊接工艺.介绍并讨论了各种焊接方法与焊接接头组织的特征,以期为新型焊接工艺的开发、热影响区组织控制及焊接接头性能预测提供借鉴.
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| 关 键 词： | 超细晶粒钢 焊接方法 非平衡组织 HAZ粗化 HAZ软化 组织控制 |
| 文章编号： | 1001-3938（2007）02-0039-05 |
| 修稿时间： | 2006-06-06 |
Welding Methods and Microstructural Characteristics of Ultra Fine Grained (UFG) Steel Joints Welded by Variant Methods |
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| ZHANG Gui-feng,MIAO Hui-xia,ZHANG Jian-xun,PEI Yi,XIAO Ke-min,YANG Yong-xing.Welding Methods and Microstructural Characteristics of Ultra Fine Grained (UFG) Steel Joints Welded by Variant Methods[J].Welded Pipe and Tube,2007,30(2):39-43. |
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| Authors: | ZHANG Gui-feng MIAO Hui-xia ZHANG Jian-xun PEI Yi XIAO Ke-min YANG Yong-xing |
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| Abstract: | The weldability of ultra fine grained (UFG) steels was analyzed systematically,and the welding methods for ultra fine grained steels were classified as similar microstructure welding methods and similar property welding methods.Although the ferrite grains in the HAZ coarsened in all reported welding methods in which maximum temperatures are above liquidus of UFG steels,the HAZ softening were restrained.It was contributed to the formation of some non-equilibrium microstructures,such as bainite,martensite or MA constituents during welding cycle in HAZ. |
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| Keywords: | ultra fine grained (UFG) steels welding methods non-equilibrium microstructures HAZ coarsing HAZ softening |
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