Examination of carbon diffusion in niobium clad steel composite

Changqing Xia; Zhanpeng Jin

doi:10.1007/s11771-999-0019-1

Journal of Central South University ›› 1999, Vol. 6 ›› Issue (1) : 1 -3. DOI: 10.1007/s11771-999-0019-1

Article

Examination of carbon diffusion in niobium clad steel composite

Changqing Xia ¹
, Zhanpeng Jin ¹

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Abstract

The Nb₂ C 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 Nb₂ C phase diffusion layer formation was discussed using Fick’s law assuming that stationary diffusion of carbon was established in niobium/steel diffusion couples.

Keywords

Nb₂ C-phase / carbon activity / stationary diffusion

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Changqing Xia, Zhanpeng Jin. Examination of carbon diffusion in niobium clad steel composite. Journal of Central South University, 1999, 6(1): 1-3 DOI:10.1007/s11771-999-0019-1