| 高温合金氩弧焊时冶金及工艺因素对形成热裂纹的影响 |
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| 引用本文： | 张延生,钟祖桂.高温合金氩弧焊时冶金及工艺因素对形成热裂纹的影响[J].焊接学报,1982(2):57-64. |
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| 作者姓名： | 张延生 钟祖桂 |
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| 作者单位： | 北京航空材料研究所
(张延生)，北京航空材料研究所(钟祖桂) |
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| 摘 要： | 本文介绍了几种喷气发动机用高温合金钨极氩弧焊时,所形成的焊缝金属结晶裂纹和热影响区液化裂纹。试验表明,当合金中Al、Ti、B 含量或焊接线能量增加时,焊接裂纹倾向性增大;焊前沉淀强化或冷变形硬化促使了焊接热裂纹的产生。
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| 收稿时间： | 1981/9/20 0:00:00 |
THE METALLURGICAL AND TECHNOLOGICAL FACTORS AFFECTING THE HOT CRACKING IN TIG WELDING OF SUPERALLOYS |
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| Zhang Yansheng and Zhong Zugui.THE METALLURGICAL AND TECHNOLOGICAL FACTORS AFFECTING THE HOT CRACKING IN TIG WELDING OF SUPERALLOYS[J].Transactions of The China Welding Institution,1982(2):57-64. |
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| Authors: | Zhang Yansheng and Zhong Zugui |
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| Affiliation: | Institute of Aeronautical Materials, Beijing and Institute of Aeronautical Materials, Beijing |
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| Abstract: | This paper describes the weld metal solidification-cracking and HAZ liquation-cracking in TIG welding of several kinds of superalloys used in jet engines.Experiments revealed that the cracking tendency became more serious as the Al,Ti and B contents of the alloys or the welding heat-input was increased;and that precipitation-hardening or work-hardening prior to welding made the alloys mores usceptible to hot cracking. |
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