液态金属锂对于316L不锈钢焊接件的腐蚀行为研究

doi:10.16568/j.0254-6086.201601017

核聚变与等离子体物理 ›› 2016, Vol. 36 ›› Issue (1): 92-96.DOI: 10.16568/j.0254-6086.201601017

• 等离子体应用 • 上一篇

液态金属锂对于316L不锈钢焊接件的腐蚀行为研究

曹智1，曹小岗1，王建强1，芶富均1，陈顺礼1，潘宇东2，黎颖3，杨党校1

(1. 四川大学原子核科学技术研究所，成都 610064；2. 核工业西南物理研究院，成都 610041； 3. 西南交通大学聚变科学研究所，成都 611756)

收稿日期:2014-11-21 修回日期:2015-11-09 出版日期:2016-03-15 发布日期:2016-03-15
作者简介:曹智(1985-)，男，四川江油人，博士研究生，从事液态金属与材料的腐蚀行为研究。
基金资助:
国家磁约束核聚变能发展研究专项(2013GB114003)；国家自然科学基金(11275135，11102221)

Corrosion behavior of liquid lithium to 316L stainless steel weldment

CAO Zhi1, CAO Xiao-gang1, WANG Jian-qiang1, GOU Fu-jun1, CHEN chun-li1, PAN Yu-dong2, LI Ying3, YANG Dang-xiao1

(1. Institute of Nuclear Science and Technology, Sichuan University, Chendu 610064; 2. Southwestern Institute of Physics, Chendu 610041; 3. Institute of Fusion Science, Southwest Jiaotong University, Chendu 611756)

Received:2014-11-21 Revised:2015-11-09 Online:2016-03-15 Published:2016-03-15

摘要/Abstract

摘要：

通过失重法结合SEM、金相分析等手段，研究了含焊缝的316L 不锈钢试样在350°C、0.15MPa 液态锂中500h 的静态腐蚀，并采用LIBS 结合台阶仪表征液态锂的渗入深度。结果表明，锂对含焊缝的316L 不锈钢样式的平均腐蚀速率为99.8mg·m^-2·h^-1；腐蚀深度为6.4μm；渗入深度在316L 不锈钢焊缝处为8.6μm，在母材处为4.8μm。在焊缝处锂对材料有明显的晶间腐蚀。

关键词: 液态金属锂, 316L不锈钢, 焊缝腐蚀, LIBS

Abstract:

Static corrosion of 316L stainless steel (SS) in liquid lithium at 350°C, 0.15MPa, 500h was studied by corrosion weight loss, SEM and Metallographic analysis, and penetration depth of liquid lithium was represented by LIBS combined with step profiler. The result show that average corrosion ratio of 316L SS sample (containing weld) was 99.8mg·m^-2·h^-1, corrosion depth was 6.4μm, and in weld of 316L SS the penetration depth was 8.6μm, and in base metal it was 4.8μm. There was significant intergranular corrosion of lithium to material at the weld.

Key words: Liquid lithium, 316L stainless steel, Weld corrosion, LIBS

中图分类号:

TL62+1

曹智1，曹小岗1，王建强1，芶富均1，陈顺礼1，潘宇东2，黎颖3，杨党校1. 液态金属锂对于316L不锈钢焊接件的腐蚀行为研究[J]. 核聚变与等离子体物理, 2016, 36(1): 92-96.

CAO Zhi1, CAO Xiao-gang1, WANG Jian-qiang1, GOU Fu-jun1, CHEN chun-li1, PAN Yu-dong2, LI Ying3, YANG Dang-xiao1. Corrosion behavior of liquid lithium to 316L stainless steel weldment[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2016, 36(1): 92-96.

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液态金属锂对于316L不锈钢焊接件的腐蚀行为研究

Corrosion behavior of liquid lithium to 316L stainless steel weldment

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