Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 610, Issue -, Pages 139-144Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2014.05.042
Keywords
Mg alloys; Microstructure; Tensile properties; Long period stacking ordered (LPSO) structure
Categories
Funding
- National Natural Science Foundation of China [51301048]
- Natural Science Foundation of Heilongjiang Province of China [QC2012C114]
- Postdoctoral Science-research Developmental Foundation of Heilongjiang Province [LBH-Q12129]
- Foundation of State Key Laboratory of Rare Earth Resources Utilization [RERU2013011]
- Fundamental Research funds for the Central Universities [HEUCFR1128]
Ask authors/readers for more resources
The high quality Mg-xYmm (x=6, 9, 12)-4Zn (Ymm=Y-rich misch metal, wt%) alloy ingots with diameter of 90-95 mm and length of 600 mm were successfully fabricated by water-cooled mold casting, and the microstructure and tensile properties have been investigated. The results demonstrated that the alloys contained four secondary phases: a plenty of 18R LPSO and 14H LPSO phases and a few of Mg3Zn3RE2 and Mg24Y5-type compounds. The ultimate tensile strength of Mg-12Ymm-4Zn alloy could keep above 130 MPa until 400 degrees C. The excellent high-temperature strength was mainly attributed to dense LPSO lamellae strengthening Mg matrix and network-like LPSO phase reinforcing grain boundaries. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
