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Effects of Sm and Zr Addition on the Microstructure and Mechanical Properties in Mg-Cu Alloys
- Source :
- Key Engineering Materials; January 2017, Vol. 727 Issue: 1 p88-92, 5p
- Publication Year :
- 2017
-
Abstract
- The effects of Sm and Zr amount on the properties of Mg-Cu-Sm-Zr alloys were systematically investigated. The results showed that the Mg<subscript>99</subscript>Cu alloy consist of-Mg matrix and Mg<subscript>2</subscript>Cu phase. After the addition of Sm and Zr, it was confirmed that Sm and Zr change the structure and distribution of Mg<subscript>2</subscript>Cu phase. In the meantime, the CuZr<subscript>2</subscript> and CuSm phases which make a major contribution to mechanical properties were observed in the Mg-Cu-Sm-Zr alloys. The addition of Sm and Zr can also greatly refine the grains. The strength continuously increased due to the increase of Sm and Zr content. The elongation first increased within the range of 0-1.5%Sm 0-0.9%Zr, and the decreased. The alloys with 0.5wt%Sm and 1.9wt%Zr had the best combination of mechanical properties.
Details
- Language :
- English
- ISSN :
- 10139826 and 16629795
- Volume :
- 727
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- Key Engineering Materials
- Publication Type :
- Periodical
- Accession number :
- ejs41675502
- Full Text :
- https://doi.org/10.4028/www.scientific.net/KEM.727.88