|
Vol.51, No.6, 393 ~ 399, 2013
|
| Title |
| Evaluation of the Mechanical Properties of Zn-Mg Alloys with Composition of Mg |
| 유지민 Ji Min Yu , 변종민 Jong Min Byun , 김태엽 Tae Yeob Kim , 정우성 Woo Sung Jung , 김영도 Young Do Kim |
|
|
|
| Abstract |
| In this study, Zn-Mg alloys with various Mg contents were manufactured by the casting method using an induction melting furnace. Then microstructure analysis and mechanical property tests were carried out. In the Zn-Mg alloy with a content of less than 7 wt%Mg, the hardness of the Zn-Mg alloys gradually increased as the Mg content increased but in the alloy with more than Zn-7 wt%Mg, the hardness was almost the same. Enhanced hardness is induced by the intermetallic compounds phase of Mg2Zn11 and MgZn2. In the compression test, Zn-3 wt%Mg had the best compression strength at 610 MPa, but Zn-7 wt%Mg and Zn-10 wt%Mg had a low compression strength at 343 Mpa and 111 MPa, respectively, although these alloys have excellent hardness. This study verified that Zn-Mg alloys containing a Zn phase have more toughness than those composed of only intermetallic compounds such as Mg2Zn11 and MgZn2. (Received November 19, 2012). |
|
|
| Key Words |
| alloys, casting, microstructure, hardness test, compression test |
|
|
 |
|
