| 电弧超声埋弧焊改善09MnNiDR焊缝组织性能 |
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| 引用本文： | 杨博宇,郝红伟,李路明,吴敏生,王胜. 电弧超声埋弧焊改善09MnNiDR焊缝组织性能[J]. 热加工工艺, 2006, 0(2) |
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| 作者姓名： | 杨博宇 郝红伟 李路明 吴敏生 王胜 |
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| 作者单位： | 清华大学机械工程系，清华大学航天航空学院，清华大学航天航空学院，清华大学机械工程系，张家港化工机械有限公司 北京 100084，北京 100084，江苏 张家港 100084 |
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| 基金项目： | 国家自然科学基金资助项目(50375080) |
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| 摘 要： | 作为焊接电弧的热源,对其施加高频调制后可变成可控的超声发射源。通过对比常规SAW和电弧超声作用下SAW的09MnNiDR焊缝组织,发现电弧超声能够减小埋弧焊焊缝区的柱状晶尺寸和先共析铁素体的晶粒大小,同时低温冲击实验结果表明,电弧超声能够显著提高09MnNiDR焊缝区的冲击吸收功。
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| 关 键 词： | 电弧超声 SAW 冲击吸收功 |
Study on Arc-ultrasonic SAW Improving Structure and Property of 09MnNiDR Welding Joint |
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| YANG Bo-yu,HAO Hong-wei,LI Lu-ming,WU Min-sheng,WANG Sheng. Study on Arc-ultrasonic SAW Improving Structure and Property of 09MnNiDR Welding Joint[J]. Hot Working Technology, 2006, 0(2) |
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| Authors: | YANG Bo-yu HAO Hong-wei LI Lu-ming WU Min-sheng WANG Sheng |
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| Abstract: | As the heat resource of welding, arc excited by high frequency modulation could emit ultrasonic. Compared with conventional SAW, the metallurgical structure of arc-ultrasonic SAW could be refined, especially the grain size of columnar crystals and pro-eutectoid ferrite in weld zone is reduced. At the same time the results of low-temperature impact experiments showed that arc-ultrasonic can remarkably improve the impact strength of weld zone. |
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| Keywords: | arc-ultrasonic SAW impact strength |
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