Affiliation:
1. Henan University of Science and Technology
Abstract
The effects of Y and Gd on the microstructure and mechanical properties of AZ81 magnesium alloy were studied by alloy preparation, microstructure analysis and mechanical property testing. The results show that moderate addition of Y and Gd to AZ61 magnesium alloy can obviously refine grains of AZ61 alloy, and decrease the amount of Mg17Al12 phase. With the increase of alloying elements, the tensile strength and elongation of aged AZ61 magnesium alloy at the temperature ranging of 25°C～175°C rise at first and then drop.When content of Y and Gd is up to 2.7%，the values of tensile strength of the alloy at room temperature and 175°C are up to their maximums, 254MPa and 164MPa respectively, while the elongation of the alloy are 22.9%,18.7% respectively. Y and Gd improve the mechanical properties of AZ61 alloy because of the grain refining strengthening, solution strengthening and the dispersion strengthening.
Publisher
Trans Tech Publications, Ltd.
Reference6 articles.
1. A. Kaveh, T. Alireza, K. Farzad. Material Science and Engineering A, Vol. 523(2009), pp.27-31.
2. L. Shepeleva, M. Bamberger. Materials Science and Engineering, Vol. 425(2006), pp.312-317.
3. J. Chen, Q. A. Li, F.X. Li, et al. Special Casting and Nonferrous Alloys, Vol. 28(2008), pp.980-982(in Chinese).
4. J. Xu, F.P. Li, F. Guo, et al. Material and Heat Treatment, Vol. 38(2009), pp.32-34(in Chinese).
5. G.R. Li, H.M. Wang, Y.T. Zhao, et al. Rare metal materials and engineering, Vol. 39(2010), pp.80-84(in Chinese).
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献