| Diffusion Behaviour of Fe-Cu Interface of Copper Brazed Double-wall Steel Tubes |
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| 作者单位： | Yourong XU Deying WANG Qi JIN Yijian ZHOU Shanghai University of Science and Technology，Shanghai，201800，ChinaFan HU Chao LIU Iron and Steel Research Institute of Baoshan Iron and Steel Complex，Shanghai，201900，China |
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| 摘 要： | By means of electron probe(EPMA),scanning electron microscope(SEM),and optical microscope(QM),the diffusion behaviour on the Fe-Cu interface of copper brazed double-wall steel tubes andthe microstructure of the diffusion layer have been investigated.There are three kinds of metallurgicalbonds between copper plating layer and steel substrate: (1)the Cu diffusing into steel substratealong grain boundary of ferrite;(2)the Cu diffusion into grain bulk of ferrite: (3)the Fe diffusing intoCu layer.The copper brazed double-wall steel tubes are formed by the combination of the diffusionsmentioned above and this is the reason for excellent mechanical and technological properties of thecopper brazed double-wall steel tubes.
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| 收稿时间： | 1993-07-28 |
Diffusion Behaviour of Fe-Cu Interface of Copper Brazed Double-wall Steel Tubes |
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| Yourong XU Deying WANG Qi JIN Yijian ZHOU Shanghai University of Science and Technology,Shanghai,,ChinaFan HU Chao LIU Iron and Steel Research Institute of Baoshan Iron and Steel Complex,Shanghai,,China. Diffusion Behaviour of Fe-Cu Interface of Copper Brazed Double-wall Steel Tubes[J]. Journal of Materials Science & Technology, 1993, 9(4): 279-282 |
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| Authors: | Yourong XU Deying WANG Qi JIN Yijian ZHOU Shanghai University of Science Technology Shanghai ChinaFan HU Chao LIU Iron Steel Research Institute of Baoshan Iron Steel Complex Shanghai China |
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| Abstract: | By means of electron probe(EPMA),scanning electron microscope(SEM),and optical microscope (QM),the diffusion behaviour on the Fe-Cu interface of copper brazed double-wall steel tubes and the microstructure of the diffusion layer have been investigated.There are three kinds of metallurgical bonds between copper plating layer and steel substrate: (1)the Cu diffusing into steel substrate along grain boundary of ferrite;(2)the Cu diffusion into grain bulk of ferrite: (3)the Fe diffusing into Cu layer.The copper brazed double-wall steel tubes are formed by the combination of the diffusions mentioned above and this is the reason for excellent mechanical and technological properties of the copper brazed double-wall steel tubes. |
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| Keywords: | metallurgical bond Bundyweld tube diffusion behaviour interface |
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