Mechanism for Grain Refinement and Mechanical Properties of AZ91 Mg Alloy by Carbon Inoculation

被引：20
|
作者：
Suresh, M. [1 ]
Srinivasan, A. [1 ]
Pillai, U. T. S. [1 ]
Pai, B. C. [1 ]
机构：
[1] CSIR Thiruvananthapuram, Mat & Minerals Div, NIIST, Trivandrum 695019, Kerala, India
来源：
6TH INTERNATIONAL CONFERENCE ON CREEP, FATIGUE AND CREEP-FATIGUE INTERACTION | 2013年 / 55卷
关键词：
AZ91 Mg alloy; carbon inoculation; grain refinement; mechanical properties; MAGNESIUM ALLOY; HETEROGENEOUS NUCLEATION; REFINING MECHANISM; AL ALLOYS; BEHAVIOR;
D O I：
10.1016/j.proeng.2013.03.225
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The effect of charcoal on the grain refinement and mechanical properties of the AZ91 is investigated in the present study. The results show addition of 0.4 wt% charcoal produced maximum grain refinement in the AZ91 Mg alloy by reducing the grain size from 100 to 14 mu m. Such fine grain structure achieved through addition of charcoal suggests that the Al4C3 and Al2MgC2 particles formed in the melt have acted as efficient nucleating sites during solidification of alpha-Mg. Significant improvement in mechanical properties observed with charcoal addition is attributed to the grain refinement and the presence of fine carbide particles. (C) 2013 The Authors. Published by Elsevier Ltd.
引用
收藏
页码：93 / 97
页数：5
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