Creep characteristic of Mg alloy at high temperature
고온에서 마그네슘 합금의 크리이프 특성
- An, Jung-O (Department of Mechanical Engineering Pukyong National University) ;
- Park, Kyong-Do (Department of Mechanical Engineering Pukyong National University) ;
- Kwak, Jae-Seob (Department of Mechanical Engineering Pukyong National University) ;
-
Kang, Dae-Min
(Department of Mechanical Engineering Pukyong National University)
- 안정오 (부경대학교 기계공학부 대학원.부경대학교 기계공학부) ;
- 박경도 (부경대학교 기계공학부 대학원.부경대학교 기계공학부) ;
- 곽재섭 (부경대학교 기계공학부 대학원.부경대학교 기계공학부) ;
-
강대민
(부경대학교 기계공학부 대학원.부경대학교 기계공학부)
- Published : 2008.06.24
Abstract
Magnesium alloys have given high attention to the industry of light-weigh as automobile and electronics with aluminium, titanium and composite alloys due to their high strength, low specific density and good damping characteristics. But the magnesium contained structures under high temperature have the problems related to creep deformation and rupture life, which is a reason of developing the new material against creep deformation to use them safely. The purpose of this study is to predict the creep deformation mechanism and rupture time of AZ31 magnesium alloy. For this, creep tests of AZ31 magnesium alloy were done under constant creep load and temperature with the equipment including automatic temperature controller with acquisition computer. The apparent activation energy Qc and the applied stress exponent n, rupture life have been determined during creep of AZ31 Mg alloy over the temperature range of
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