Evaluation of corrosion resistance of WC-Co based alloys in H2SO4

被引：2
|
作者：
Sunada, Satoshi [1 ]
Hosoda, Yukihiro [1 ]
Yamamoto, Tsutornu [2 ]
Majima, Kazuhiko [1 ]
机构：
[1] Toyama Univ, Grad Sch Sci & Engn, Toyama 9308555, Japan
[2] DIJET INDUSTRIAL CO LTD, Hirano ku, Osaka, 5470002, Japan
来源：
PRICM 6: SIXTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-3 | 2007年 / 561-565卷
关键词：
cemented carbide; polarization curve measurement; electrochemical impedance spectroscopy; preferential dissolution of Co;
D O I：
10.4028/www.scientific.net/MSF.561-565.2147
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Three cemented carbide specimens, i.e., WC-Co (Sample A), WC-Cr3C2-Co (Sample B) and WC-beta t-Co (Sample C) in which P indicates (Ti,W,Ta,Nb)C, are prepared by liquid phase sintering, and their corrosion behavior has been investigated by the electrochemical methods. The similar activation, passive state and over passive state regions as SUS304 stainless steel during the polarization test, and the preferential dissolution of Co were observed for all of the three specimens mentioned above. Both Cr3C2 and beta t improved the corrosion resistance of WC-Co alloy, in which the effect of the former was better than that of the latter. Sample B also showed the best corrosion resistance in all the samples for the electrochemical impedance spectroscopy (EIS) test.
引用
收藏
页码：2147 / +
页数：2
相关论文
共 50 条
  • [31] Electrochemical characteristics and corrosion behavior of Ti alloys in H2SO4 containing chloride ion
    Liu, Tianqing
    Qu, Jin
    Gu, Jie
    Cailiao Baohu/Materials Protection, 1997, 30 (01): : 11 - 13
  • [32] Corrosion behavior of hypoeutectic Al-Cu alloys in H2SO4 and NaCl solutions
    Wislei R.Osório
    Leandro C.Peixoto
    Leonardo R.Garcia
    Amauri Garcia
    Acta Metallurgica Sinica(English Letters), 2009, 22 (04) : 241 - 246
  • [33] Corrosion behaviour of sintered ferrous alloys and ferro-TiC in H2SO4 and NaCl
    Debata, M
    Upadhyaya, GS
    INDIAN JOURNAL OF ENGINEERING AND MATERIALS SCIENCES, 2001, 8 (03) : 153 - 160
  • [34] Electrochemical Corrosion of Titanium and Titanium Alloys Anodized in H2SO4 and H3PO4 Solutions
    Manuel Jaquez-Munoz, Jesus
    Gaona-Tiburcio, Citlalli
    Chacon-Nava, Jose
    Cabral-Miramontes, Jose
    Nieves-Mendoza, Demetrio
    Maldonado-Bandala, Erick
    Delgado, Anabel D.
    Pablo Flores-De los Rios, Juan
    Bocchetta, Patrizia
    Almeraya-Calderon, Facundo
    COATINGS, 2022, 12 (03)
  • [35] H2SO4
    毛毳
    少年文艺, 2004, (11) : 42 - 43
  • [36] Diffusion of H2SO4 in humidified nitrogen:: Hydrated H2SO4
    Hanson, DR
    Eisele, F
    JOURNAL OF PHYSICAL CHEMISTRY A, 2000, 104 (08): : 1715 - 1719
  • [37] CORROSION OF FE-B BASED AMORPHOUS-ALLOYS IN H2SO4 SOLUTIONS - INFLUENCE OF ALLOYING ELEMENTS
    CROUSIER, JP
    CROUSIER, J
    MASSIANI, Y
    ANTONIONE, C
    GAZZETTA CHIMICA ITALIANA, 1983, 113 (5-6): : 329 - 331
  • [38] BENZOTRIAZOLE AS AN INHIBITOR OF CORROSION OF CU IN FLOWING H2SO4
    ROSS, TK
    BERRY, MR
    CORROSION SCIENCE, 1971, 11 (04) : 273 - &
  • [39] Corrosion inhibition of nickel in H2SO4 solution by alanine
    Hamed, E.
    El-REhim, S. S. Abd
    El-Shahat, M. F.
    Shaltot, A. M.
    MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2012, 177 (05): : 441 - 448
  • [40] Corrosion behavior of CuNiCrAl alloy in H2SO4 solutions
    Liu Jianhua
    Zhang Ruijun
    Yang Jingru
    Sun Qina
    RARE METAL MATERIALS AND ENGINEERING, 2007, 36 : 295 - 298
12345