Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1637175 | Transactions of Nonferrous Metals Society of China | 2012 | 6 Pages |
Abstract
An as-solution treated Mg-6Gd-1Y-0.4Zr alloy was processed by low temperature thermo-mechanical treatments (LT-TMT), including cold tension with various strains followed by aging at 200 °C to peak hardness. The results show that the precipitation kinetics of the alloy experienced LT-TMT is greatly accelerated and the aging time to peak hardness is greatly decreased with increasing tensile strain. The tensile yield strength, ultimate tensile strength and elongation at room temperature of the alloy after cold tension with strain of 10% and peak aging at 200 °C are 251 MPa, 296 MPa and 8%, respectively, which are superior to the commercial heat-resistant WE54 alloy, although the latter has a higher rare earth element content.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
De-jiang LI, Xiao-qin ZENG, Yan-cai XIE, Yu-juan WU, Wen-jiang DING, Bin CHEN,