| 影响自保护药芯焊丝焊缝韧性及离散性的因素 |
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| 引用本文： | 张学杰, 郭纯, 姚润钢. 影响自保护药芯焊丝焊缝韧性及离散性的因素[J]. 焊接, 2017, (3): 20-25. |
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| 作者姓名： | 张学杰 郭 纯 姚润钢 |
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| 摘 要： | 介绍了自保护药芯焊丝焊缝金属的韧化机理，分析了合金元素、夹杂物及稀土元素对焊缝韧性的影响，总结得出焊缝组织中粗大的马氏体与奥氏体组元(M-A组元)是造成韧性离散的主要原因。通过选择合适成分的焊丝，并配合恰当的热输入，可以减少并细化组织中的M-A组元，使韧性稳定。
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| 关 键 词： | 自保护药芯焊丝 韧性 离散性 影响因素 |
| 收稿时间： | 2016-12-21 |
Influencing factors on weld-seam toughness and its discreteness of self shielded flux cored wire |
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| Zhang Xuejie, Guo Chun, Yao Rungang. Influencing factors on weld-seam toughness and its discreteness of self shielded flux cored wire[J]. WELDING & JOINING, 2017, (3): 20-25. |
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| Authors: | Zhang Xuejie Guo Chun Yao Rungang |
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| Abstract: | The toughening mechanism of the weld metal by self shielded flux cored wire was introduced, the influence of alloy elements, inclusion and rare earth element on weld-seam toughness were analyzed. And the results indicated that coarse M-A structures in weld-seam caused the discreteness of weld toughness. The wire with proper chemical composition and appropriate thermal input were used, M-A structures can be reduced and refined and the toughness will become stable. |
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| Keywords: | self shielded flux cored wire toughness discreteness influencing factor |
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