| 316L不锈钢薄板脉冲激光焊工艺参数及接头组织特征 |
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| 引用本文： | 阎小军,杨大智,刘黎明.316L不锈钢薄板脉冲激光焊工艺参数及接头组织特征[J].焊接学报,2004,25(3):121-123. |
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| 作者姓名： | 阎小军 杨大智 刘黎明 |
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| 作者单位： | 大连理工大学,材料工程系,大连,116024 |
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| 摘 要： | 研究了0．1 mm 316L不锈钢薄板脉冲激光焊工艺参数特征，分析了接头的组织和力学性能。结果表明：0．1mm 316L不锈钢薄板脉冲激光焊时适宜用小电流、大脉宽、高速度、高频率；焊缝中心为细小的等轴晶，边缘是细小的柱状晶；焊接接头的抗拉强度可达到母材的95％，伸长率可达到母材的85％。
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| 关 键 词： | 不锈钢薄板 脉冲激光焊 工艺参数 组织特征 |
| 文章编号： | 0253-360X(2004)03-121-03 |
| 收稿时间： | 2003/7/11 0:00:00 |
Welding parameters and microstructure of pulse laser welded 316 L stainless steel sheet |
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| YAN Xiao-jun,YANG Da-zhi and LIU Li-ming.Welding parameters and microstructure of pulse laser welded 316 L stainless steel sheet[J].Transactions of The China Welding Institution,2004,25(3):121-123. |
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| Authors: | YAN Xiao-jun YANG Da-zhi and LIU Li-ming |
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| Affiliation: | Department of Materials Engineering, Dalian University of Technology, Dalian 116024, China,Department of Materials Engineering, Dalian University of Technology, Dalian 116024, China and Department of Materials Engineering, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | Welding parameters of pulse laser weld~t 316L stainlesssteel sheet have been studied, and the mierostructure and mechanicalproperties of weldments have been investigeted. The results show thatsmall current, long pulse duration, high welding speed and high frequen-cy should be used in order to form a good weldments. Examination of themicrographs reveals that mainly cellular or celluar - dendrites are formedin the outer patter of the weld metal and equiaxed dendrites are found atthe central portion of weld metal. The ultimate tensile strength of weld-ments is up to 95 per cent of the base metal, and the elongation of weld-ments is up to 85 per cent of the base metal. |
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| Keywords: | L stainless steel sheet pulse laser welding weldingparameters microstructural characteristics |
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