Modification of In-situ Mg<sub>2</sub>Si/AM60B Magnesium Matrix Composites with MgCO<sub>3</sub> and Sr

Shen Le; Chen Tijun; Ma Ying; Liu Mingwei; Hao Yuan

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Modification of In-situ Mg₂Si/AM60B Magnesium Matrix Composites with MgCO₃ and Sr
Vol. 31, Issue 7, Pages: 653-655(2011)
Published： 2011 ，
DOI：

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[1]申乐,陈体军,马颖,刘明伟,郝远.MgCO_3和Sr对原位Mg_2Si/AM60B复合材料的变质[J].特种铸造及有色合金,2011,31(07):653-655.

Shen Le, Chen Tijun, Ma Ying, et al. Modification of In-situ Mg₂Si/AM60B Magnesium Matrix Composites with MgCO₃ and Sr. [J]. Special Casting & Nonferrous Alloys 31(7):653-655(2011)
[1]申乐,陈体军,马颖,刘明伟,郝远.MgCO_3和Sr对原位Mg_2Si/AM60B复合材料的变质[J].特种铸造及有色合金,2011,31(07):653-655. DOI：

Shen Le, Chen Tijun, Ma Ying, et al. Modification of In-situ Mg₂Si/AM60B Magnesium Matrix Composites with MgCO₃ and Sr. [J]. Special Casting & Nonferrous Alloys 31(7):653-655(2011) DOI：

摘要

研究了MgCO3、Sr对原位自生Mg2Si/AM60B复合材料中Mg2Si相及基体的复合变质作用。结果表明

微量Sr的加入可以明显改善Mg2Si相的形貌。初生Mg2Si由粗大的树枝状转为多角形状

共晶Mg2Si由粗大的汉字状变为弥散而细小的短棒状或多边形粒状。同时

MgCO3对AM60B基体也起到了很好的细化作用

从而使原位自生Mg2Si/AM60B复合材料的力学性能得到提高。

Abstract

Effects of compound modification of MgCO3 and Sr on AM60B and Mg2Si phase in in-situ Mg2Si/AM60B magnesium matrix composites were investigated. The results show that trace Sr addition can greatly improve the morphology of Mg2Si phase

where primary Mg2Si phase is converted from coarse dendrite into polygonal structure

and eutectic Mg2Si phase is transformed from coarse Chinese script into fine rod-like ones or polygonal particle. Meanwhile

MgCO3 can obviously refine the AM60B matrix. Based on the above effects

the mechanical properties of the in-situ Mg2Si/AM60B magnesium matrix composites were significantly improved.

关键词

原位自生Mg2SiAM60B镁合金SrMgCO3复合变质

Keywords

In-situ Mg2SiAM60B Magnesium AlloySrMgCO3Compound Modification

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Modification of In-situ Mg2Si/AM60B Magnesium Matrix Composites with MgCO3 and Sr

DOI：

摘要

Abstract

关键词

Keywords

references

Modification of In-situ Mg₂Si/AM60B Magnesium Matrix Composites with MgCO₃ and Sr