Diffusion Behaviour of Fe-Cu Interface of Copper Brazed Double-wall Steel Tubes
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 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.
引用本文（GB/T 7714）
Zhou Shanghai. Diffusion Behaviour of Fe-Cu Interface of Copper Brazed Double-wall Steel Tubes[J]. 未知来源, 1993.
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