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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 被引量:2

Corrosion behavior of liquid lithium to 316L stainless steel weldment
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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6.4?m;渗入深度在316L不锈钢焊缝处为8.6?m,在母材处为4.8?m。在焊缝处锂对材料有明显的晶间腐蚀。 Static corrosion of 316 L stainless steel(SS) in liquid lithium at 350°C, 0.15 MPa, 500 h 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 316 L SS sample(containing weld) was 99.8mg·m-2·h-1, corrosion depth was 6.4μm, and in weld of 316 L 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.
出处 《核聚变与等离子体物理》 CAS CSCD 北大核心 2016年第1期92-96,共5页 Nuclear Fusion and Plasma Physics
基金 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)
关键词 液态金属锂 316L不锈钢 焊缝腐蚀 LIBS Liquid lithium 316L stainless steel Weld corrosion LIBS
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