Effect of scandium on the corrosion behavior of Al-6Mg-Zr alloy in artificial seawater environment

被引：0
|
作者：
Tao, BW [1 ]
Wang, KR
Liu, JH
Li, SM
机构：
[1] Beijing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
[2] Shenyang Airplane Co Ltd, Shenyang 110034, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2005年 / 34卷 / 09期
关键词：
Al-Mg alloy; scandium; beta-phase (Mg5Al8); electrochemical measurements;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Corrosion behaviors of Al-6Mg-Zr and Al-6Mg-Zr-Sc alloys in artificial seawater were studied by using accelerated corrosion test and electrochemical measurement methods. It was found that etching pit was found on the surfaces of two alloys in the testing environments, and the resistance to corrosion of Al-6Mg-Zr-Sc was better than that of Al-6Mg-Zr alloy. By means of SEM/EDX, it was found that the beta-phrase precipitation in Al-6Mg-Zr-Sc alloys was distributed discontinuously due to the grain refinement effect of Al-3(Sc,Zr), which reduced the susceptibility to corrosion.
引用
收藏
页码：1485 / 1488
页数：4
相关论文
共 9 条
  • [1] The corrosion behavior of scandium alloyed Al 5052 in neutral sodium chloride solution
    Ahmad, Z
    Ul-Hamid, A
    Bj, AA
    [J]. CORROSION SCIENCE, 2001, 43 (07) : 1227 - 1243
  • [2] Scientific principles of making an alloying addition of scandium to aluminium alloys
    Davydov, VG
    Rostova, TD
    Zakharov, VV
    Filatov, YA
    Yelagin, VI
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 280 (01): : 30 - 36
  • [3] New Al-Mg-Sc alloys
    Filatov, YA
    Yelagin, VI
    Zakharov, VV
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 280 (01): : 97 - 101
  • [4] Li HZ, 1999, RARE METAL MAT ENG, V28, P110
  • [5] Resistance to recrystallization due to Sc and Zr addition to Al-Mg alloys
    Ocenasek, V
    Slamova, M
    [J]. MATERIALS CHARACTERIZATION, 2001, 47 (02) : 157 - 162
  • [6] Stress corrosion cracking susceptibility of Al-Mg alloy sheet with high Mg content
    Popovic, M
    Romhanji, E
    [J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2002, 125 : 275 - 280
  • [7] XIAO YD, 1999, CHINESE J RARE METAL, V23, P331
  • [8] XIAO Yu-de, 1999, CHINESE J RARE METAL, V23, P113
  • [9] Zhang YH, 2002, RARE METAL MAT ENG, V31, P167
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