| Microstructure and mechanical properties of a sand-cast Mg-Nd-Zn alloy |
| D. Wu; R. S. Chen; W. Ke
|
| 2014
|
| 发表期刊 | Materials & Design
 |
| ISSN | 0261-3069
|
| 卷号 | 58页码:324-331 |
| 摘要 | The microstructures and mechanical properties of a sand-cast Mg-Nd-Zn alloy in the as-cast, solution-treated and peak-aged conditions were investigated. The as-cast alloy was comprised of alpha magnesium matrix and Mg12Nd eutectic compounds. The eutectic compounds dissolved into the matrix and small Zr-containing particles precipitated at grain interiors, due to the solution treatment. After the solution treatment, two kinds of cooling manner, either cooling in air or quenching in water, were employed. It was worth noting that some basal precipitates formed in the matrix during the in-air cooling process after solution treatment, which led to the succedent weak ageing hardening response and low strength in peak-aged condition. The hardness, yield strength, ultimate tensile strength and elongation at room temperature, of the samples in the T61 condition, were HV81, 191 MPa, 258 MPa and 4.2%, respectively. When tensile tested at high temperature, they exhibited serrated flow. Moreover, the casting surface of the tensile testing bar also had a great influence on its mechanical properties. (C) 2014 Elsevier Ltd. All rights reserved. |
| 部门归属 | [wu, d.
; chen, r. s.
; ke, w.] chinese acad sci, grp magnesium & their applicat, inst met res, shenyang 110016, peoples r china.
; chen, rs (reprint author), chinese acad sci, grp magnesium & their applicat, inst met res, 62 wencui rd, shenyang 110016, peoples r china.
; rschen@imr.ac.cn
|
| 关键词 | Mg-nd-zn Alloy
Sand-cast
Heat Treatment
Microstructure
Mechanical
Property
Tensile Properties
Serrated Flow
Precipitate
Magnesium
Zr
|
| URL | 查看原文
|
| 语种 | 英语
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/72932
|
| 专题 | 中国科学院金属研究所
|
推荐引用方式
GB/T 7714 |
D. Wu,R. S. Chen,W. Ke. Microstructure and mechanical properties of a sand-cast Mg-Nd-Zn alloy[J]. Materials & Design,2014,58:324-331.
|
| APA |
D. Wu,R. S. Chen,&W. Ke.(2014).Microstructure and mechanical properties of a sand-cast Mg-Nd-Zn alloy.Materials & Design,58,324-331.
|
| MLA |
D. Wu,et al."Microstructure and mechanical properties of a sand-cast Mg-Nd-Zn alloy".Materials & Design 58(2014):324-331.
|
修改评论