文献类型：期刊文献

英文题名：Achieving balanced uniform and local corrosion performance of SS 316L/ IN625 hybrid alloy manufactured by directed energy deposition

作者：Zhang, Shuyao[1,2];Li, Yajing[4];Dai, Hailong[1,2];Zhang, Zhe[1,2];Chen, Xu[1,2,3]

机构：[1]Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China;[2]Tianjin Key Lab Chem Proc Safety & Equipment Techn, Tianjin 300350, Peoples R China;[3]Tianjin Univ, Zhejiang Inst, Ningbo 315201, Zhejiang, Peoples R China;[4]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai, Peoples R China

年份：2024

卷号：32

起止页码：3937

外文期刊名：JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T

收录：;EI(收录号：20243717013305);WOS:【SCI-EXPANDED(收录号:WOS:001309223400001)】；

基金：This work was partially supported by the National Key Research and Development Program of China (2022YFC3004500) , the National Nat-ural Science Foundation of China (52075368, 12011540001) , Ningbo Natural Science Foundation (2021J006) , China Postdoctoral Science Foundation (2023TQ0113) and Shanghai Pujiang Programme (23PJD022) .

语种：英文

外文关键词：Additive manufacturing; Directed energy deposition; Graded materials; Alloy design; Corrosion; Hydrofluoric acid

摘要：This study investigates hybrid stainless steel (SS) 316L/Inconel 625 (IN625) materials via DED for hydrofluoric acid (HF) corrosion resistance. 20% SS 316L + 80% IN625 (20% 316L) exhibits low uniform corrosion (0.35 mm/y) and improved local corrosion performance. High Cr2O3 content in its passive film ensures uniform corrosion resistance. The thermodynamic analysis combined with microstructure observation shows reduced Nb content in 20% 316L's Laves phase, enhancing resistance to micro-galvanic local corrosion. This study provides insights into the design and manufacturing technology of corrosion-resistant materials in harsh corrosive environments.