Synergistic effect of transpassive film and gamma double prime phase on the electrochemical dissolution behavior of Inconel 718 manufactured by laser directed energy deposition

被引：4
作者：
Zhang, Yufeng [1 ,2 ]
Yu, Jun [1 ,2 ]
Lin, Xin [1 ,2 ]
Guo, Pengfei [3 ]
Yan, Qiaodan [1 ,2 ]
Liu, Jianrui [1 ,2 ]
Huang, Weidong [1 ,2 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
[2] Northwestern Polytech Univ, Key Lab Met High Performance Addit Mfg & Innovat, MIIT China, Xian 710072, Peoples R China
[3] Qingdao Univ Technol, Shandong Engn Res Ctr Addit Mfg, Qingdao 266520, Peoples R China
来源：
MATERIALS CHARACTERIZATION | 2023年 / 204卷
基金：
中国国家自然科学基金;
关键词：
Additive manufacturing; Laser directed energy deposition; Inconel; 718; Transpassive film; Electrochemical dissolution; STAINLESS-STEEL; PASSIVE FILM; CORROSION BEHAVIOR; ANODIC-DISSOLUTION; PITTING CORROSION; NICKEL ELECTRODE; MECHANISM; MICROSTRUCTURE; KINETICS; SURFACE;
D O I：
10.1016/j.matchar.2023.113207
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study investigated the synergistic effect of transpassive film and gamma '' phase on the electrochemical dissolution behavior of Inconel 718 manufactured by laser directed energy deposition. The investigation was based on samples after homogenization and aging with (gamma + gamma '') phases and homogenization with. phase. The compositions of the transpassive films for two kinds of heat-treated samples were similar, mainly comprising porous Ni hydroxides. The incompact transpassive film induced the local preferential dissolution of the gamma matrix and generated multiple dispersive pits on the surface. Compared with the sample after homogenization, the spatial distribution of the gamma '' phase in the sample after homogenization and aging restricted the expansion of pits in the gamma matrix, leading to superior surface quality. The detachment of the gamma '' phase during electrochemical dissolution provided extra mass loss and higher current efficiency. A qualitative model was proposed to demonstrate the synergistic effect of the transpassive film and gamma '' phase on the dynamic electrochemical dissolution process.
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页数：13
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  • [21] Electrochemical behavior of Inconel 718 fabricated by laser solid forming on different sections
    Guo, Pengfei
    Lin, Xin
    Li, Jiaqiang
    Zhang, Yufeng
    Song, Menghua
    Huang, Weidong
    [J]. CORROSION SCIENCE, 2018, 132 : 79 - 89
  • [22] Electrochemical Removal of Different Phases from Laser Solid Formed Inconel 718
    Guo, Pengfei
    Lin, Xin
    Xu, Jianjun
    Li, Jiaqiang
    Liu, Jianrui
    Huang, Weidong
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2017, 164 (07) : E151 - E157
  • [23] Effect of passive film on mechanical properties of martensitic stainless steel 15-5PH in a neutral NaCl solution
    Guo, Qiang
    Liu, Jianhua
    Yu, Mei
    Li, Songmei
    [J]. APPLIED SURFACE SCIENCE, 2015, 327 : 313 - 320
  • [24] Electrochemical machining of the steel 100Cr6 in aqueous NaCl and NaNO3 solutions:: microstructure of surface films formed by carbides
    Haisch, T
    Mittemeijer, E
    Schultze, JW
    [J]. ELECTROCHIMICA ACTA, 2001, 47 (1-2) : 235 - 241
  • [25] Differentiation of γ′ and γ"-precipitates in Inconel 718 by a complementary study with small-angle neutron scattering and analytical microscopy
    Lawitzki, R.
    Hassan, S.
    Karge, L.
    Wagner, J.
    Wang, D.
    von Kobylinski, J.
    Krempaszky, C.
    Hofmann, M.
    Gilles, R.
    Schmitz, G.
    [J]. ACTA MATERIALIA, 2019, 163 (28-39) : 28 - 39
  • [26] Microstructure homogeneity and mechanical property improvement of Inconel 718 alloy fabricated by high-deposition-rate laser directed energy deposition
    Li, Zuo
    Ma, Xu
    Zhong, Chongliang
    Sui, Shang
    Gasser, Andres
    Chen, Jing
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2022, 832
  • [27] Influence of micro-structure on corrosion behavior of a Ni-based superalloy in 3.5% NaCl
    Liu, Li
    Li, Ying
    Wang, Fuhui
    [J]. ELECTROCHIMICA ACTA, 2007, 52 (25) : 7193 - 7202
  • [28] Electrochemical Machining-mechanisms of anodic dissolution
    Lohrengel, M. M.
    Rataj, K. P.
    Munninghoff, T.
    [J]. ELECTROCHIMICA ACTA, 2016, 201 : 348 - 353
  • [29] Characterization of passive film on 2205 duplex stainless steel in sodium thiosulphate solution
    Luo, H.
    Dong, C. F.
    Xiao, K.
    Li, X. G.
    [J]. APPLIED SURFACE SCIENCE, 2011, 258 (01) : 631 - 639
  • [30] Microstructural evolution and corrosion behaviors of Inconel 718 alloy produced by selective laser melting following different heat treatments
    Luo, Shuncun
    Huang, Wenpu
    Yang, Huihui
    Yang, Jingjing
    Wang, Zemin
    Zeng, Xiaoyan
    [J]. ADDITIVE MANUFACTURING, 2019, 30
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