ISSN: 1003-6326
CN: 43-1239/TG
CODEN: TNMCEW

Vol. 16    Special 3    December 2006

[PDF]    
Grain refinement of Mg-Al magnesium alloys by carbon inoculation
王朝辉1,康永林2,赵鸿金2,徐跃2
(1.北京市北京科技大学材料科学与工程学院
2.School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
)
Abstract: C2Cl6 was used as grain refiner for AM60 magnesium alloys. The effects of grain refinement process on chemical composition, microstructure, impact energy, hardness and mechanical properties of magnesium alloys were investigated with XRF spectrometer, optical and electronic microscopes, pendulum impact tester, hardness tester and MTS material testing machine. The results show that C2Cl6 has good effects on microstructure and mechanical properties of AM60 magnesium alloys. The optimum usage of C2Cl6 in AM60 for getting the best properties is 1.0%. The results of electronic microscopic examination and theoretical analyses show that Al4C3 should be the potent heterogeneous nucleant for Mg-Al magnesium alloys.
Key words: Mg-Al alloys; grain refinement; carbon inoculation; mechanical properties; mechanism
Superintended by The China Association for Science and Technology (CAST)
Sponsored by The Nonferrous Metals Society of China (NFSOC)
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