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Korean Journal of Metals and Materials > Volume 55(4); 2017 > Article
Korean Journal of Metals and Materials 2017;55(4): 213-221. doi: https://doi.org/10.3365/KJMM.2017.55.4.213
Mg-RE계 고온용 합금의 특성과 최근 연구 동향
남수우
한국과학기술정보연구원 ReSEAT Program
High Temperature Properties and Recent Research Trend of Mg-RE Alloys
Soo Woo Nam
Korea Institute of Science and Technology Information ReSEAT Program, Seoul 02456, Republic of Korea
Correspondence  Soo Woo Nam ,Tel: +82-42-869-3318, Email: namsw@kaist.ac.kr
Received: 13 September 2016;  Accepted: 23 September 2016.  Published online: 6 April 2017.
ABSTRACT
For the applications in automotive, aircraft, aerospace, and electronic industries, the lightest structural Mg alloys have received much attention since 2000. There has been some progress for the improvement of the mechanical properties such as room temperature strength, formability and mechanical anisotropy. However, the high temperature strength of Mg alloys is very low to be used for the parts and structures of high temperature conditions. For the last decade, considerable efforts are concentrated for the development of Mg alloys to be used at high temperature. Newly developing Mg-RE alloys are the good examples for the high temperature use. In this regard, this review paper introduces the recent research trends for the development of Mg-RE alloys strengthened with some precipitates and the long period stacking ordered (LPSO) structures related RE elements.
Keywords: Mg-RE alloys, LPSO, texture, mechanical anisotropy, mechanical property
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