EXAMINATION OF CARBON DIFFUSION IN NIOBIUM CLAD STEEL COMPOSITE  

作　　者：Xia Changqing Jin Zhanpeng (Department of Materials Science and Engineering, Central South University of Technology, Changsha 410083, China) 

出　　处：《Journal of Central South University》1999年第1期2-4,共3页中南大学学报（英文版）

摘　　要：Ｔｈｅｎｉｏｂｉｕｍｃｌａｄｓｔｅｅｌｃｏｍｐｏｓｉｔｅｉｓａｃｌａｄｓｔｅｅｌｐｌａｔｅ，ｉｎｗｈｉｃｈｔｈｅｂａｓｅｍｅｔａｌｉｓｓｔｅｅｌｗｉｔｈ０．２０％ｃａｒｂｏｎａｎｄｔｈｅｃｌａｄｄｉｎｇｍｅｔａｌｉｓｎｉｏｂｉｕｍｗｉｔｈｅｘｃｅｌ...The Nb 2C layer formed in the bonding interface of a niobium clad steel composite at 1023 K for 112 h was examined metallographically and analyzed using the electron microprobe technique. The mechanism of Nb 2C phase diffusion layer formation was discussed using Fick′s law assuming that stationary diffusion of carbon was established in niobium/steel diffusion couples.

关 键 词：Nb 2C phase CARBON activity STATIONARY DIFFUSION 

分 类 号：TG142[一般工业技术—材料科学与工程]