中文

Journal of Shanghai University >

2022 , Vol. 28 >Issue 1: 111 - 120

DOI: https://doi.org/10.12066/j.issn.1007-2861.2236

Research Articles

Effects of Nb on hydrogen diffusion in Fe-13Cr-6Al-2Mo alloys

Expand
  • Institute of Materials, Shanghai University, Shanghai 200072, China

Received date: 2019-12-16

  Online published: 2020-05-08

Fold

Abstract

In this study, the diffusion behaviors of hydrogen atoms in Fe-13Cr-6Al-2Mo and Fe-13Cr-6Al-2Mo-0.5Nb alloys were studied by the electrochemical hydrogen permeation method. The effects of 0.5% Nb (mass fraction) added to the alloy on the diffusion behavior of hydrogen atoms in the Fe-13Cr-6Al-2Mo alloy were analyzed. Results showed that the grain of the alloy was refined, and a large amount of fine Fe$_2$Nb phase was dispersed in the Fe-13Cr-6Al-2Mo alloy when 0.5% Nb was added. The results also showed that 0.5% Nb greatly reduced the apparent diffusion coefficient of hydrogen in the Fe-13Cr-6Al-2Mo alloy and increased the diffusion activation energy of hydrogen in the alloy by 50.3%. The Nb atom effectively reduced the diffusion rate of hydrogen in the FeCrAlMo-based alloy by increasing the hydrogen trap concentration in the alloy.

Key words： FeCrAl-based alloy; hydrogen trap; hydrogen diffusion coefficient

Cite this article

MA Xingxing, CHEN Yexin, ZHANG Huawei . Effects of Nb on hydrogen diffusion in Fe-13Cr-6Al-2Mo alloys[J]. Journal of Shanghai University, 2022 , 28(1) : 111 -120 . DOI: 10.12066/j.issn.1007-2861.2236

References

[1] 陶小康, 黄重国, 郭青苗, 等. 新型轻水反应堆包壳材料 FeCrAl 合金的研究进展[J]. 热加工工艺, 2018, 47(6): 24-26.
[2] Zinkle S J, Terrani K A, Gehin J C, et al. Accident tolerant fuels for LWRs: a perspective[J]. Journal of Nuclear Materials, 2014, 448: 374-379.
[3] 周军, 邱少宇, 杜沛南, 等. 耐事故燃料包壳用 FeCrAl 不锈钢的研究进展[J]. 材料导报, 2017(S2): 47-50.
[4] Lim J, Hwang I S, Kim J H. Design of alumina forming FeCrAl steels for lead or lead-bismuth cooled fast reactors[J]. Journal of Nuclear Materials, 2013, 441: 650-660.
[5] 杜沛南, 王辉, 郑继云, 等. Nb 对 FeCrAl 热加工组织影响的研究[J]. 热加工工艺, 2018, 47(22): 88-93.
[6] Yamamoto Y, Gussev M N, Kim B, et al. Optimized properties on base metal and thin-walled tube of generation ATF FeCrAl[J]. Material Science, 2015, 56: 89-93.
[7] 王洪, 赵和明, 陈辉, 等. 氢陷阱对临氢钢氢扩散系数测定的影响[J]. 材料热处理学报, 2016, 37(4): 236-242.
[8] 唐慧文, 李祥志, 斯庭智. LZ45CrV 车轴钢氢扩散行为及氢鼓泡探究[J]. 材料保护学报, 2018, 51(4): 120-124.
[9] Yamamoto Y, Field K, Snead L. Optimization of nuclear grade fecral fuel cladding for light water reactors [C]// Oak Ridge National Laboratory IAEA Technical Meeting. 2014.
[10] McBreen J, Nanis L, Beck W. A method for determination of the permeation rate of hydrogen through metal membranes[J]. Journal of the Electrochemical Society, 1966, 113(11): 1218-1222.
[11] 褚武扬. 氢脆和应力腐蚀 [M]. 北京: 科学出版社, 2013.
[12] Zheng C, Huang Y, Huo C, et al. Hydrogen permeation behavior and corrosion monitoring of steel in cyclic wet-dry atmospheric environment[J]. Materials and Corrosion, 2007, 58(9): 716-720.
[13] 陈业新, 常庆刚. 20 g 纯净钢中氢陷阱对氢扩散系数的作用[J]. 金属学报, 2011, 47(5): 548-552.
[14] 杜沛南, 郑继云, 王辉, 等. Nb 含量及退火温度对 FeCrAl 合金力学性能的影响[J]. 金属热处理, 2018, 43(12): 83-87.
[15] Yazdipour N, Haq A J, Muzaka K, et al. 2D modeling of the effect grain size on hydrogen diffusion in X70 steel [J]. Computational Materials Science, 2012, 56: 6-9.
[16] 赵景晖, 等. 关于钢中氢陷阱[J]. 鞍钢技术, 1996(12): 6-9.
[17] 谢春乾, 李金许, 李倩, 等. 析出相对马氏体时效钢氢扩散系数的影响[J]. 材料热处理学报, 2014, 35(11): 33-39.
[18] Oriani R A. The diffusion and trapping of hydrogen in steel[J]. Acta Metallurgica, 1970, 18: 147-157.
[19] Pound B G. The effect of aging on hydrogen trapping in precipitation-hardened alloys[J]. Corrosion Science, 2000, 42(11): 1941-1956.
[20] Louthan M R. Hydrogen embrittlement of metals: a primer for the failure analyst[J]. Journal of Failure Analysis and Prevention, 2008, 8(3): 289-307.
Options
Outlines

/

〈 〉