The effect of particle size of alumina dispersions on the oxidation resistance of Ni-Cr alloys

被引：9
|
作者：
Lim, HJ
Park, SW
Kang, SG
机构：
[1] Hanyang Univ, Dept Mat & Met Engn, Seoul 133791, South Korea
[2] Korea Inst Sci & Technol, Div Ceram, Seoul 130650, South Korea
来源：
OXIDATION OF METALS | 1997年 / 48卷 / 5-6期
关键词：
high-temperature oxidation; Ni-Cr alloy; oxidation rate; protective Cr2O3 layer; Al2O3; dispersion; selective oxidation;
D O I：
10.1007/BF02153458
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The oxidation behavior of Ni-Cr alloys with various chromium concentrations and particle sizes of a dispersion of 10 vol.% Al2O3 was observed in 1 atm of oxygen at 1000 degrees C, This study was intended to determine the critical chromium concentration to form a protective Cr2O3 oxide layer for different Al2O3 particle sizes. The oxidation rate of Ni-Cr alloys containing 10 vol.% Al2O3 followed a parabolic rate law and a Cr2O3 protective layer continuously formed when the oxidation rate decreased rapidly. Times to form a continuous and protective Cr2O3 layer during the initial oxidation shortened as the size of the dispersion decreased The critical chromium concentration to form a protective Cr2O3 layer in the oxide scale was 6 similar to 9 wt.% and was related strongly to the particle size of the Al2O3 dispersion.
引用
收藏
页码：391 / 415
页数：25
相关论文
共 50 条
  • [41] SURFACE SEGREGATION AND LOW-TEMPERATURE OXIDATION OF NI-CR ALLOYS
    JENG, SP
    HOLLOWAY, PH
    BATICH, CD
    HOFMANN, S
    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1987, 5 (04): : 650 - 651
  • [42] Chloridation-oxidation of Fe-Cr and Ni-Cr alloys at 800°C
    Zheng, XJ
    Rapp, RA
    OXIDATION OF METALS, 1997, 48 (5-6): : 527 - 551
  • [43] COMPOSITIONAL CHANGES IN UNDERLYING ALLOY PRODUCED BY OXIDATION OF NI-CR ALLOYS
    HODGKIESS, T
    WOOD, GC
    WHITTLE, DP
    BASTOW, BD
    OXIDATION OF METALS, 1978, 12 (05): : 439 - 449
  • [44] Temperature Effect on Oxidation Behavior of Ni-Cr Alloys in CO2 Gas Atmosphere
    Xie, Yun
    Zhang, Jianqiang
    Young, David J.
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2017, 164 (06) : C285 - C293
  • [45] Role of Cr-rich carbide precipitates in the intergranular oxidation of Ni-Cr alloys
    Sushko, Maria L.
    Schreiber, Daniel K.
    Rosso, Kevin M.
    Bruemmer, Stephen M.
    SCRIPTA MATERIALIA, 2018, 156 : 51 - 54
  • [46] Chloridation-oxidation of Fe-Cr and Ni-Cr alloys at 800°C
    Xuejin Zheng
    Robert A. Rapp
    Oxidation of Metals, 1997, 48 : 527 - 551
  • [47] ELECTRODEPOSITED NI-CR AND NI-CR-P ALLOYS
    LIN, KL
    HO, JK
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1992, 139 (05) : 1305 - 1310
  • [48] ESCA STUDIES OF NI-CR ALLOYS
    LIM, AS
    ATRENS, A
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1992, 54 (04): : 343 - 349
  • [49] OXIDE COMPOUNDS ON NI-CR ALLOYS
    BARAN, GR
    JOURNAL OF DENTAL RESEARCH, 1984, 63 (11) : 1332 - 1334
  • [50] Quantitative evaluation of the effect of the Al addition on the internal-external oxidation in Ni-Cr alloys
    Maruyama, T
    Bin Ani, MH
    Ueda, M
    Nanko, M
    Oyama, Y
    Kawamura, K
    HIGH TEMPERATURE CORROSION AND MATERIALS CHEMISTRY IV, 2003, 2003 (16): : 96 - 106
12345