Effect of cold rolling on the oxidation resistance of T91 steel in oxygen-saturated stagnant liquid lead-bismuth eutectic at 450 °C and 550 °C

JOURNAL OF NUCLEAR MATERIALS

卷:476

Article

Dong, Hong¹  Ye, Zhongfei¹  Wang, Pei¹  Li, Dianzhong¹  Zhang, Yutuo²  Li, Yiyi¹ 

[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China

[2] Shenyang Ligong Univ, 6 Nanping Rd, Shenyang 110159, Peoples R China

关键词: Lead-bismuth eutectic;    Martensitic steel;    Cold rolling;    Non-equilibrium grain boundary;    Migrating dislocation;   

DOI  :  10.1016/j.jnucmat.2016.04.046

来源: Elsevier

【 摘 要 】

The compatibility of T91 steels having different preparation processes with oxygen -saturated stagnant lead -bismuth eutectic have been investigated at 450 degrees C and 550 degrees C. It is found that cold rolling decreases the thickness of the oxide scale of T91 steel by forming a continuous enhanced Cr-rich belt in the inner oxide layer next to the internal oxidation zone, which is attributed to the rapid diffusion of Cr induced by numerous non-equilibrium grain boundaries and migrating dislocations. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

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