| 焊接残余应力对超声波冲击处理焊接接头疲劳性能的影响 |
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| 引用本文： | 王东坡,霍立兴,张玉凤,葛智海.焊接残余应力对超声波冲击处理焊接接头疲劳性能的影响[J].机械工程学报,2004,40(5):150-154. |
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| 作者姓名： | 王东坡 霍立兴 张玉凤 葛智海 |
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| 作者单位： | 1. 天津大学材料科学与工程学院,天津,300072
2. 深圳赤弯胜宝旺工程有限公司质检部,深圳,518068 |
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| 基金项目： | 国家自然科学基金(59575061) |
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| 摘 要： | 采用含高值焊接残余应力的非承载纵向角接接头进行了Q235B钢焊态与超声波冲击态的疲劳对比试验,研究了焊接残余应力对超声冲击处理焊接接接头疲劳性能的影响规律。结果表明:焊接残余应力对超声波冲击处理后焊接接头疲劳性能的影响较小。使用不含高值焊接残余应力的小试件来评估超声波冲击处理对相同接头形式及板厚的大型焊接结构疲劳性能的改善程度可能是偏于安全的。
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| 关 键 词： | 超声波冲击 焊接接头 疲劳性能 焊接残余应力 |
| 修稿时间： | 2003年6月10日 |
EFFECT OF WELDING RESIDUAL STRESS ON FATIGUE PERFORMANCE OF THE WELDED JOINTS TREATED BY ULTRASONIC PEENING |
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| Wang Dongpo,Huo Lixing,Zhang Yufeng School of Materials Science and Engineering,Tianjin University,Tianjin Ge Zhihai.EFFECT OF WELDING RESIDUAL STRESS ON FATIGUE PERFORMANCE OF THE WELDED JOINTS TREATED BY ULTRASONIC PEENING[J].Chinese Journal of Mechanical Engineering,2004,40(5):150-154. |
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| Authors: | Wang Dongpo Huo Lixing Zhang Yufeng School of Materials Science and Engineering Tianjin University Tianjin Ge Zhihai |
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| Affiliation: | Wang Dongpo,Huo Lixing,Zhang Yufeng School of Materials Science and Engineering,Tianjin University,Tianjin 300072 Ge Zhihai Department of Quality Inspection,Shenzhen Chiwan Shengbaowang Engineering Company Limited,Shenzhen 518068 |
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| Abstract: | The fatigue contrast tests of Q235B steel unload
longitudinal fillet welded joints containing high welding resid-
ual stress and in two different state: ultrasonic peening and as
welded condition are directed. And the effect on fatigue per-
formance of the welded joints treated by ultrasonic peening
from welding residual stress is sedied. Test results showed
that: the effect on fatigue performance of the welded joints
treated by ultrasonic peening from welding residual stress is
small. It is safe that use the small specimens which are treated
by ultrasonic peening and don't contain high welding residual
stress to appraise the fatigue performance improvement on
large-scale welded structures which are as the same junction
style and thickness as the small. |
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| Keywords: | Ultrasonic peening Welded joint Fatigue performance Welding residual stress |
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