Native grain refinement of magnesium alloys

被引:133
作者
Cao, P
Qian, M
StJohn, DH
机构
[1] Univ Waikato, Sch Sci & Engn, Dept Mat & Proc Engn, Hamilton, New Zealand
[2] Brunel Univ, BCAST, Uxbridge UB8 3PH, Middx, England
[3] Univ Queensland, Sch Engn, CAST, Brisbane, Qld 4072, Australia
关键词
magnesium; grain refining; native grain refinement; Al4C3;
D O I
10.1016/j.scriptamat.2005.06.010
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
High purity Mg-Al type alloys have a naturally fine grain size compared to commercial purity alloys with the same basic composition. This is referred to as native grain refinement. It is shown that native grain refinement occurs only in magnesium alloys containing aluminium. The mechanism is attributed to the Al4C3 particles existing in these alloys. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:841 / 844
页数:4
相关论文
共 12 条
[1]  
Emley E.F., 1966, PRINCIPLES MAGNESIUM, P250
[2]  
FOX FA, 1945, J I MET, V71, P415
[3]   Reply to comments on "Grain refining mechanism of a carbon addition method in a Mg-Al magnesium alloy" [J].
Jin, QL ;
Eom, JP ;
Lim, SG ;
Park, WW ;
You, BS .
SCRIPTA MATERIALIA, 2005, 52 (05) :421-423
[4]  
Lee Y.C., 2002, THESIS U QUEENSLAND
[5]   The role of solute in grain refinement of magnesium [J].
Lee, YC ;
Dahle, AK ;
StJohn, DH .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2000, 31 (11) :2895-2906
[6]   Clarification of grain refining mechanisms of superheat-treated Mg-Al-Zn alloy castings [J].
Motegi, T ;
Yano, E ;
Tamura, Y ;
Sato, E .
MAGNESIUM ALLOYS 2000, 2000, 350-3 :191-198
[7]  
Nelson C.E., 1948, T AFS, V56, P1
[8]   Discussions on grain refinement of magnesium alloys by carbon inoculation [J].
Qian, M ;
Cao, P .
SCRIPTA MATERIALIA, 2005, 52 (05) :415-419
[9]   Alloying of pure magnesium with Mg-33.3 wt-%Zr master alloy [J].
Qian, M ;
Graham, D ;
Zheng, L ;
StJohn, DH ;
Frost, MT .
MATERIALS SCIENCE AND TECHNOLOGY, 2003, 19 (02) :156-162
[10]  
STJOHN DH, IN PRESS METALL MA A