Effects of Mn Addition on Microstructure and Mechanical Properties of the Al-Si-Fe-Cu-Zn Based Alloys

被引：2
作者：
Yoo, Hyo-Sang [1 ,2 ]
Kim, Yong-Ho [1 ]
Jung, Chang-Gi [1 ,2 ]
Lee, Sang-Chan [2 ]
Lee, Seong-Hee [2 ]
Son, Hyeon-Taek [1 ]
机构：
[1] Korea Inst Ind Technol, Automot Components & Materals Grp, 1110-9 Oryong Dong, Gwangju 61012, South Korea
[2] Mokpo Natl Univ, Muan 58554, South Korea
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2017年 / 17卷 / 10期
关键词：
Aluminum Alloy; Mn Addition; Microstructure; Mechanical Properties; ELECTROCHEMICAL PROPERTIES; ALUMINUM-ALLOYS; ANODES;
D O I：
10.1166/jnn.2017.14822
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Effects of Mn addition on microstructure and mechanical properties of as-cast and as-extruded Al0.15Si0.2Fe0.3Cu0.15ZnxMn alloys were investigated. After the as-cast billets were kept at 400 degrees C for 1 hr, hot extrusion was carried out with a reduction ratio of 38:1. Mn addition to Al0.15Si0.2Fe0.3Cu0.15Zn based alloys resulted in the formation of Al6(Fe, Mn) and Al15(Fe, Mn)(3)Si-2 intermetallic compounds and grain refinement. With increasing of addition of Mn, yield strength and ultimate tensile strength was increased and maximum value of yield strength and ultimate strength was 29 and 96 MPa at 2.1 Mn containing alloy, respectively. In the tensile properties at 420 degrees C, Mn containing intermetallic compounds plays an important role for the improvement of strength and elongation due to grain refinement and suppression of grain growth by the formation of thermally stable Mn containing intermetallic compounds.
引用
收藏
页码：7619 / 7622
页数：4
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