| 1Cr18Ni9Ti钢不同焊接接头的低温拉伸性能 |
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| 引用本文： | 王淑花,李学伟,邢玉荣.1Cr18Ni9Ti钢不同焊接接头的低温拉伸性能[J].热加工工艺,2006(4). |
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| 作者姓名： | 王淑花 李学伟 邢玉荣 |
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| 作者单位： | 黑龙江科技学院材料系 黑龙江哈尔滨150027(王淑花，李学伟)，哈尔滨汽轮机有限责任公司 黑龙江哈尔滨150046(邢玉荣) |
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| 基金项目： | 黑龙江科技学院启动基金资助项目(05-44) |
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| 摘 要： | 采用精密多功能低温静载材料实验机和扫描电镜,系统研究了焊接方法对1Cr18Ni9Ti钢焊接接头低温拉伸性能的影响。结果表明:在77K下,1Cr18Ni9Ti钢TIG焊接头的强度、伸长率均比MMA焊接头的高;两者拉伸断口均为韧窝和撕裂棱混合型韧性断口,但TIG焊接头断口中韧窝的尺寸细小而均匀。
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| 关 键 词： | 1Cr18Ni9Ti钢 低温 拉伸性能 焊接方法 |
Tensile Properties of Different 1Cr18Ni9Ti Steel Welded Joint at Low Temperature |
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| WANG Shu-hua,LI Xue-wei,XING Yu-rong.Tensile Properties of Different 1Cr18Ni9Ti Steel Welded Joint at Low Temperature[J].Hot Working Technology,2006(4). |
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| Authors: | WANG Shu-hua LI Xue-wei XING Yu-rong |
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| Affiliation: | WANG Shu-hua1,LI Xue-wei1,XING Yu-rong2 |
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| Abstract: | The fluences of welding methods on the low temperature tensile behavior of 1Cr18Ni9Ti steel welded joint were studied by means of precise multifunction material testing system and SEM. The results show that the strength and elongation of the TIG welded joint is higher than that of the MMA at 77K. The fracture surface of 1Cr18Ni9Ti steel welded joint exhibits hybrid tough fracture of dimple and tear ridge , and dimple of the TIG welded joint fracture surface is tiny and uniform. |
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| Keywords: | 1Cr18Ni9Ti steel low temperature tensile properties welding means |
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