Effect of Mg17Al12 precipitate on corrosion behavior of AZ91D magnesium alloy

被引：45
|
作者：
Ko, YJ [1 ]
Yim, CD
Lim, JD
Shin, KS
机构：
[1] Hyundai Motor Co, R&D Div, Mat Res Team, Kyonggi Do 445706, South Korea
[2] Kia Motors Co, Kyonggi Do 445706, South Korea
[3] Seoul Natl Univ, Sch Mat Sci & Engn, BK21 Mat Educ & Res Div, Seoul 151742, South Korea
[4] POSTECH, CAAM, Pohang 790784, South Korea
来源：
MAGNESIUM ALLOYS 2003, PTS 1 AND 2 | 2003年 / 419-4卷
关键词：
Mg17Al12; precipitate; magnesium alloy; corrosion behavior; heat treatment;
D O I：
10.4028/www.scientific.net/MSF.419-422.851
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructure of an AZ91D magnesium alloy mainly consists of Mg17Al12 phase and magnesium matrix. Although the Mg17Al12 phase is a principal precipitate in the Mg-Al alloy system, its role on corrosion behavior has not yet been systematically investigated. In the present study, the effect of Mg17Al12 phase on corrosion behavior of an AZ91D magnesium alloy was investigated in a quantitative manner. A wide range of volume fraction of the Mg17Al12 phase was obtained by varying aging temperature and time after solution heat treatment. The corrosion potential measurements and salt spray tests were carried out on the specimens with various volume fractions of the Mg17Al12 phase. The results of these tests showed that the corrosion resistance increased with increasing volume fraction of the Mg17Al12 phase. It was found that the network structure of the Mg17Al12 phase increased the corrosion resistance of an AZ91D alloy by acting as an effective barrier against corrosion.
引用
收藏
页码：851 / 856
页数：6
相关论文
共 50 条
  • [31] CORROSION MECHANISM AND MODEL OF ANODIZED FILM ON AZ91D MAGNESIUM ALLOY
    Li, Lina
    Qian, Jiangang
    Lu, Zhaozhong
    Sun, Zhongwu
    INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2010, 24 (15-16): : 3077 - 3082
  • [32] Improvement of corrosion resistance of AZ91D magnesium alloy by gadolinium addition
    周学华
    卫中领
    陈秋荣
    甘复兴
    Transactions of Nonferrous Metals Society of China, 2006, (S3) : 1664 - 1668
  • [33] Improvement of Corrosion Resistance of AZ91D Magnesium Alloy by Nickel Plating
    Hsu, Hsien-Ta
    Yang, Tsong-Jen
    IUMRS INTERNATIONAL CONFERENCE IN ASIA 2011, 2012, 36 : 279 - 284
  • [34] Spherical shape of γ-Mg17Al12 precipitates in AZ91 magnesium alloy processed by equal-channel angular pressing
    Braszczynska-Malik, K. N.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 487 (1-2) : 263 - 268
  • [35] Effect of Phosphating Additives on Corrosion Resistance of Phosphate Coatings on AZ91D Magnesium Alloy
    Lin, Bilan
    Xu, Yuye
    Li, Encai
    MATERIALS PROCESSING TECHNOLOGY, 2011, 337 : 112 - +
  • [36] The effect of electromagnetic stirring on the microstructure and corrosion of mischmetal modified AZ91D magnesium alloy
    Jin, Y. X.
    Hua, L.
    Xu, X.
    Peng, Q.
    MATERIALS SCIENCE-POLAND, 2009, 27 (01): : 171 - 185
  • [37] Improvement of corrosion resistance of AZ91D magnesium alloy by gadolinium addition
    Zhou Xue-hua
    Wei Zhong-ling
    Chen Qiu-rong
    Gan Fu-xing
    TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2006, 16 : S1664 - S1668
  • [38] Effect of microstructure refinement on the corrosion of AZ91D magnesium alloys
    Liu Q.
    Chen G.
    Zeng S.
    Zhang S.
    Pan J.
    Shi Q.
    Qinghua Daxue Xuebao/Journal of Tsinghua University, 2019, 59 (09): : 765 - 771
  • [39] Corrosion and mechanical properties of AZ91D magnesium alloy fabricated by solid recycling process
    Chino, Y
    Kishihara, R
    Shimojima, K
    Yamada, Y
    Wen, C
    Iwasaki, H
    Mabuchi, M
    JOURNAL OF THE JAPAN INSTITUTE OF METALS, 2001, 65 (07) : 621 - 626
  • [40] Calorimetric analysis of AZ91D magnesium alloy
    Guan, Y. C.
    Zhou, Wei
    MATERIALS LETTERS, 2008, 62 (30) : 4494 - 4496
12345