| 环缝多层焊接头残余应力场的调整 |
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| 引用本文： | 唐慕尧,孟繁森.环缝多层焊接头残余应力场的调整[J].西安交通大学学报,1994,28(4):97-102. |
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| 作者姓名： | 唐慕尧 孟繁森 |
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| 作者单位： | 西安交通大学机械工程学院 |
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| 摘 要： | 用数值模拟结合实验方法研究了１８－８不锈钢管多层对接焊时的应力分布规律，并指出在合适的焊接条件下，当冷却水的流量达到３３Ｌ／ｍｉｎ时，在钢管内壁获得双向压缩残余应力，将明显地提高１８－８不锈钢管对接接头抗应力腐蚀破裂能力。
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| 关 键 词： | 焊接 残余应力 焊缝 焊接接头 |
ADJUSTMENT OF RESIDUAL STRESS FIELD OF MULTI-LAYER GIRTH-WELDING JOINT |
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| Tang Muyao Meng Fansen Liu Min.ADJUSTMENT OF RESIDUAL STRESS FIELD OF MULTI-LAYER GIRTH-WELDING JOINT[J].Journal of Xi'an Jiaotong University,1994,28(4):97-102. |
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| Authors: | Tang Muyao Meng Fansen Liu Min |
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| Institution: | School of Mechanical Engineering |
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| Abstract: | In this paper, numerical simulation method in cooperation with experiment is employed to study the stress distribution of multi-layer girth- welding of 18-8 stainless steel pipe cooled by air or water. The researches reveal that as flow of cooling water reaches 33L/min with adequate welding condition, biaxial compression residual stress can be obtained on the inner surface, which will obviously improve the resistance to stress corrosion cracking of 18-8 stainless steel pipe butt-joint. |
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| Keywords: | butt residual stress cooled by water |
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