Oxidation of two-phase Cu-Cr alloys with different microstructures

被引：0
|
作者：
Fu, GY
Niu, Y
Wu, WT
Guan, HR
机构：
[1] Inst Chem Technol, Dept Mech Engn, Shenyang 110021, Peoples R China
[2] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2001年 / 11卷 / 03期
关键词：
oxidation; Cu-Cr alloys; powder metallurgy; mechanical alloying; sputtering;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The oxidation of PM Cu-50Cr, MPI Cu-40Cr and MS Cu-40Cr alloys at 800 degreesC in 0.1 MPa O-2 was studied. The most important difference of their oxidation behaviors is the formation of an exclusive chromia scale on the surface of the MS Cu-40Cr alloy and a continuous chromia layer beneath an outer CuO layer corresponding MA Cu-40Cr alloy, while a complex scale composing of CuO, Cu2O, Cu2Cr2O4 and Cr2O3 formed on the PM Cu-50Cr alloy. This result implies that alloy microstructure affects their oxidation behaviors largely. Microcrystalline structure provides numerous diffusion paths for reactive component chromium, shorter diffusion distance and rapid dissolution of Cr-riched second phase. All these favor the exclusive formation of the most stable oxide.
引用
收藏
页码：333 / 336
页数：4
相关论文
共 50 条
  • [1] Oxidation of two-phase Cu-Cr alloys with different microstructures
    付广艳
    牛焱
    吴维
    管恒荣
    TransactionsofNonferrousMetalsSocietyofChina, 2001, (03) : 333 - 336
  • [2] Microstructural effects on the high temperature oxidation of two-phase Cu-Cr alloys in 1 atm O2
    Fu, GY
    Niu, Y
    Gesmundo, F
    CORROSION SCIENCE, 2003, 45 (03) : 559 - 574
  • [3] The air oxidation of two-phase Cu-Cr alloys at 700–900°C
    Y. Niu
    F. Gesmundo
    F. Viani
    D. L. Douglass
    Oxidation of Metals, 1997, 48 : 357 - 380
  • [4] The air oxidation of two-phase Cu-Cr alloys at 700-900°C
    Niu, Y
    Gesmundo, F
    Viani, F
    Douglass, DL
    OXIDATION OF METALS, 1997, 48 (5-6): : 357 - 380
  • [5] High temperature oxidation of powder metallurgy two-phase Cu-Cr alloys under low oxygen pressure
    Fu, GY
    Niu, Y
    Wu, WT
    TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2000, 10 (03) : 353 - 357
  • [6] Oxidation behavior of Cu-Cr alloys prepared by different techniques
    Fu, GY
    Niu, Y
    Wu, WT
    ACTA METALLURGICA SINICA, 2003, 39 (03) : 297 - 300
  • [7] Effect of Lanthanum and Yttrium on Microstructures of Cu-Cr alloys
    Chen Xiaofang
    材料热处理学报, 2004, (05) : 56 - 60
  • [8] Effect of lanthanum and yttrium on microstructures of Cu-Cr alloys
    Chen, XF
    Zhang, M
    Yin, JY
    Shuai, GW
    Liu, GM
    14TH CONGRESS OF INTERNATIONAL FEDERATION FOR HEAT TREATMENT AND SURFACE ENGINEERING, VOLS 1 and 2, PROCEEDINGS, 2004, : 56 - 60
  • [9] Influence of Grain Refinement on Oxidation Behavior of Two-Phase Cu-Cr Alloys at 973-1,073 K in Air
    Pan, T. J.
    Chen, J.
    He, Y. X.
    Wei, W.
    Hu, J.
    HIGH TEMPERATURE MATERIALS AND PROCESSES, 2016, 35 (10) : 1005 - 1011
  • [10] The Oxidation of Two-Phase Cu-Cr Alloys Under 10-19 atm O2 at 700-900°C
    F. Gesmundo
    Y. Niu
    F. Viani
    D. L. Douglass
    Oxidation of Metals, 1998, 49 : 147 - 167
12345