Oxidation Behavior of a Cobalt-Based Wear-Resistant Alloy

被引：0
|
作者：
Ling Chen [1 ]
Li Shangping [2 ]
Liu Dong [3 ]
Hou Jie [2 ]
Liang Xianghua [3 ]
Luo Heli [2 ]
机构：
[1] Cent Iron & Steel Res Inst, High Temp Mat Inst, Beijing 100081, Peoples R China
[2] Gaona Aero Mat Co Ltd, Beijing 100081, Peoples R China
[3] AECC Guiyang Aeroengine Res Inst, Guiyang 550081, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2023年 / 52卷 / 05期
关键词：
wear; resistant materials; high-temperature oxidation; oxidation kinetics; HIGH-TEMPERATURE OXIDATION; W/O CR ALLOYS; IN-SITU NBC; COATINGS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The oxidation behavior of NbC particle-reinforced cobalt-based wear-resistant alloy in the air from 950 to 1050 degrees C was investigated. The alloy belongs to the oxidation-resistant level below 950 degrees C, the sub-oxidation-resistant level below 1000 degrees C, and the non- oxidation- resistant level below 1050 degrees C. The oxidation kinetic curves basically comply with the parabolic law. A mixed oxide layer consisting of CoCr2O4, CoNb2O6, Cr2O3, and Al2O3 is established on the alloy surface. The preferential in-situ oxidation behavior of the blocky NbC phase in the matrix results in the loose porous oxide layer and a non- uniform thickness. After oxidation at 1050 degrees C for 100 h, a Cr-depletion zone is formed in the matrix below the oxide layer, leading to the inability to re-form a continuous and protective oxide film after oxide peeling.
引用
收藏
页码：1708 / 1716
页数：9
相关论文
共 30 条
  • [1] Beiss P, 2002, Refractory, Hard and Intermetallic Materials
  • [2] Effect of nonstoichiometry on the structure and microwave dielectric properties of cobalt metaniobate
    Belous, A. G.
    Ovchar, O. V.
    Kramarenko, A. V.
    Mishchuk, D. O.
    Jancar, Bostjan
    Bezjak, Jana
    Suvorov, Danilo
    [J]. INORGANIC MATERIALS, 2006, 42 (12) : 1369 - 1373
  • [3] Birks N, 2006, INTRODUCTION TO THE HIGH-TEMPERATURE OXIDATION OF METALS, 2ND EDITION, P1, DOI 10.1017/CBO9781139163903
  • [4] Formation behavior of in-situ NbC in Fe-based laser cladding coatings
    Cao, Ya-bin
    Zhi, Shi-xin
    Gao, Qi
    Tian, Xin-tao
    Geng, Tao
    Guan, Xin
    Qin, Cha
    [J]. MATERIALS CHARACTERIZATION, 2016, 119 : 159 - 165
  • [5] In-situ formation behavior of NbC-reinforced Fe-based laser cladding coatings
    Cao, Ya-bin
    Ren, Hong-ting
    Hu, Chao-shuai
    Meng, Qing-xin
    Liu, Qing
    [J]. MATERIALS LETTERS, 2015, 147 : 61 - 63
  • [6] Cao Yabin, 2020, Optics & Laser Technology, V124, P105
  • [7] Cherepova TS., 2014, SCI INNOV, V10, P20, DOI [10.15407/scine10.04.020, DOI 10.15407/SCINE10.04.020]
  • [8] Dmitrieva G. P., 2015, Metallofizika i Noveishie Tekhnologii, V37, P973
  • [9] [杜竞楠 Du Jingnan], 2012, [应用激光, Applied Laser], V32, P277
  • [10] Fontana M.G., 1978, CORROSION ENG
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