Refinement Role of Electromagnetic Stirring and Calcium in AZ91 Magnesium Alloy

被引：0
|
作者：
HAN Hui LIU Shengfa KANG Liugen LIU Linyan (School of Materials Science and Engineering
机构：
来源：
Journal of Wuhan University of Technology(Materials Science) | 2008年 / 02期
关键词：
AZ91 magnesium alloy; electromagnetic stirring; calcium; microstructural refinement;
D O I：
暂无
中图分类号：
TG146.22 [];
学科分类号：
080502 ;
摘要：
Effects of calcium addition and electromagnetic stirring on the microstructure of AZ91 magnesium alloy and refinement mechanism were investigated.The results show that calcium addition ranging from 0.1wt% to 0.3 wt% does not lead to formation of any new phases but cause the refinement of as- cast microstructure.However,combined calcium alloying and electromagnetic stirring significantly decrease the grain size,change the morphologies of theβ-MgAlphases,and reduce their volume percentage.The minimum grain size of AZ91 alloy is obtained in the case of the addition of 0.2 wt%Ca with exciting voltage of 100 V.The microstructural refinement is attributed to the increase of the degree of undercooling and nucleation temperature of primaryα-Mg phases on the basis of DTA analysis results.
引用
收藏
页码：194 / 197
页数：4
相关论文
共 50 条
  • [21] Semisolid processing AZ91 magnesium alloy by electromagnetic stirring after near-liquidus isothermal heat treatment
    Xiao-li, Zhang
    Ting-ju, Li
    Hai-tao, Teng
    Shui-sheng, Me
    Jun-ze, Jin
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 475 (1-2): : 194 - 201
  • [22] DENDRITIC SOLIDIFICATION OF MAGNESIUM ALLOY AZ91
    PETTERSEN, K
    [J]. JOURNAL OF METALS, 1988, 40 (07): : A15 - A15
  • [23] Creep Behavior of AZ91 Magnesium Alloy
    Srinivasan, A.
    Ajithkumar, K. K.
    Swaminathan, J.
    Pillai, U. T. S.
    Pai, B. C.
    [J]. 6TH INTERNATIONAL CONFERENCE ON CREEP, FATIGUE AND CREEP-FATIGUE INTERACTION, 2013, 55 : 109 - 113
  • [24] Surface modification of the AZ91 magnesium alloy
    Strzelecka, M.
    Iwaszko, J.
    Malik, M.
    Tomczynski, S.
    [J]. ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING, 2015, 15 (04) : 854 - 861
  • [25] Corrosion Behavior of AZ91 Magnesium Alloy
    Yim, Chang Dong
    Kim, Young Min
    Park, Sung Hyuk
    You, Bong Sun
    [J]. KOREAN JOURNAL OF METALS AND MATERIALS, 2012, 50 (09): : 619 - 627
  • [26] Stress relaxation in an AZ91 magnesium alloy
    Trojanová, Z
    Lukác, P
    Gabor, P
    Drozd, Z
    Máthis, K
    [J]. KOVOVE MATERIALY-METALLIC MATERIALS, 2001, 39 (06): : 368 - 378
  • [27] Surface modification of AZ91 magnesium alloy
    Luan, Benli
    Gray, Joy
    Yang, Lianxi
    Cheong, Woo-Jae
    Shoesmith, David
    [J]. 2006 BIMW: 2006 BEIJING INTERNATIONAL MATERIALS WEEK, PTS 1-4: MAGNESIUM, 2007, 546-549 : 513 - +
  • [28] Seffated flow in magnesium alloy AZ91
    Corby, C
    Cáceres, CH
    Lukac, P
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 387 : 22 - 24
  • [29] Fabrication of AZ91 magnesium alloy foam
    School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110023, China
    不详
    [J]. Zhuzao, 2007, 3 (242-244):
  • [30] Surface modification of the AZ91 magnesium alloy
    M. Strzelecka
    J. Iwaszko
    M. Malik
    S. Tomczyński
    [J]. Archives of Civil and Mechanical Engineering, 2015, 15 : 854 - 861
12345