Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1576123 | Materials Science and Engineering: A | 2013 | 8 Pages |
Abstract
A Mg-11Gd-4.5Y-1.5Zn-1Nd-0.5Zr alloy with high-strength and heat-resistance has successfully been prepared by hot extrusion and subsequent ageing. It exhibits an ultimate tensile strength of 473 MPa, 0.2% proof stress of 373 MPa and elongation to failure of 4.1% at room temperature. At 250 °C, this alloy shows an ultimate tensile strength of 369 MPa, 0.2% proof stress of 316 MPa and elongation to failure of 6.3%. Its good mechanical properties and thermal stability are attributed to the dispersion of large volume fraction of 14H-LPSO phase, small α-Mg grains, basal-fiber texture and dense distribution of precipitates at the grain boundaries and inside the grains.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Z.J. Yu, Yuanding Huang, X. Qiu, Q. Yang, W. Sun, Z. Tian, D.P. Zhang, J. Meng,