| 9%Ni钢焊接熔合区的氢致裂纹与马氏体带的关系 |
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| 引用本文： | 周昭伟,蔡宏彬,江崇华. 9%Ni钢焊接熔合区的氢致裂纹与马氏体带的关系[J]. 焊接学报, 1990, 11(4): 205-211 |
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| 作者姓名： | 周昭伟 蔡宏彬 江崇华 |
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| 作者单位： | 哈尔滨焊接研究所,哈尔滨焊接研究所,哈尔滨焊接研究所 |
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| 摘 要： |
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| 关 键 词： | 焊接 裂纹 马氏体 |
| 收稿时间： | 1990-09-14 |
RELATIONSHIP BETWEEN MARTENSITE LAYER AND HYDROGEN-INDUCED CRACKING IN THE WELD BOND OF 9%Ni STEEL |
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| Zhou Zhaowei,Cai Hongbin and Jiang Conghua. RELATIONSHIP BETWEEN MARTENSITE LAYER AND HYDROGEN-INDUCED CRACKING IN THE WELD BOND OF 9%Ni STEEL[J]. Transactions of The China Welding Institution, 1990, 11(4): 205-211 |
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| Authors: | Zhou Zhaowei Cai Hongbin Jiang Conghua |
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| Affiliation: | Harbin Research Institute of Welding,Harbin Research Institute of Welding and Harbin Research Institute of Welding |
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| Abstract: | Characteristics of martensite layer in the weld bond of 9% Ni steel,effects of tensile stress on the microstructure and mechanical properties of the weld bond were investigated with metallography,ultra-high temperature microscopy and transmission electronic microscopy.It is revealed that the weld bond contains twin martensite;martensite transformation in the weld bond lags behaind that in HAZ;tensile stress or low temperature may induce the residual austenite in the wartensite layer to transform into martensite,which enhances the tendency tohydrogen-induced cracking.A model of the formation of hydrogen-induced cracking in the weld bond of 9%Ni steel is proposed. |
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| Keywords: | Welding Cracking Martensite |
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