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논문 기본 정보

자료유형
학술저널
저자정보
Choi, Jeong-Won (Automotive Components & Materials R&BD Group Korea Institute of Industrial Technology) Kim, Yong-Ho (Automotive Components & Materials R&BD Group Korea Institute of Industrial Technology) Kim, Jung-Han (Automotive Components & Materials R&BD Group Korea Institute of Industrial Technology) Yoo, Hyo-Sang (Automotive Components & Materials R&BD Group Korea Institute of Industrial Technology) Woo, Kee-Do (Division of Advanced Materials Engineering & RCAMD, Chonbuk National University) Kim, Ki-Beom (Department of Nanotechnology and Advanced Materials Engineering, Sejong University) Son, Hyeon-Taek (Automotive Components & Materials R&BD Group Korea Institute of Industrial Technology)
저널정보
한국재료학회 한국재료학회지 한국재료학회지 제25권 제1호
발행연도
2015.1
수록면
32 - 36 (5page)

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Hot rolling of Mg-6Zn-0.6Zr-0.4Ag-0.2Ca-(0, 8 wt%)Li powder was conducted at the temperature of $300^{\circ}C$ by putting the powder into the Cu pipe. The microstructure and mechanical properties of the samples were observed. Mg-6Zn-0.6Zr-0.4Ag-0.2Ca without Li element was consisted of ${\alpha}$ phase and precipitates. The microstructure of the 8 wt%Li containing alloy consisted of two phases (${\alpha}$-Mg phase and ${\beta}$-Li phase). In addition, $Mg_2Zn_3Li$ was formed in 8%Li added Mg-6Zn-0.6Zr-0.4Ag-0.2Ca alloy. By addition of the Li element, the non-basal planes were expanded to the rolling direction, which was different from the based Mg alloy without Li. The tensile strength was gradually decreased from 357.1 MPa to 264 MPa with increasing Li addition from 0% to 8%Li. However, the elongation of the alloys was remarkably increased from 10 % to 21% by addition of the Li element to 8%. It is clearly considered that the non-basal texture and ${\beta}$ phase contribute to the increase of elongation and formability.

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