Influence of Yttrium and Heat Treatment on Microstructure and Mechanical Properties of AM60 Alloy

Abstract:

Article Preview

The effect of yttrium addition and heat treatment on the mechanical properties and microstructure of AM60 magnesium alloy have been investigated using X-ray phase analysis, microstructure investigation, tensile test, hardness measurement and fracture surfaces analysis. The results showed that the mechanical properties of the alloys were obviously improved with the addition of yttrium no more than 1.0%. The reinforcement of the alloys resulted from the appearance of Al2Y phase. After solid-solution treatment (T4), the Mg17Al12 phase almost dissolved in Mg matrix, but the rare earth compounds Al2Y phase was rather stable. The ultimate tensile strength σb was improved, but the yield strength σ0.2 and elongation δ were only slightly changed. After solid-solution + aging treatment (T6), the Mg17Al12 phase precipitated again and their morphology was changed. The yield strength σ0.2 was improved.

Info:

Periodical:

Advanced Materials Research (Volumes 194-196)

Edited by:

Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang

Pages:

1319-1325

DOI:

10.4028/www.scientific.net/AMR.194-196.1319

Citation:

Z. Tian et al., "Influence of Yttrium and Heat Treatment on Microstructure and Mechanical Properties of AM60 Alloy", Advanced Materials Research, Vols. 194-196, pp. 1319-1325, 2011

Online since:

February 2011

Export:

Price:

$35.00

[1] Y.H. Liu, X.F. Liu, X.F. Bian. Mater. lett. 58(2004)1282.

[2] Li Peijie, Tang Bin, Kandalova E G. Microstructure and properties of AZ91D alloy with Ca additions [J]. Materials Letters, 2005, 59: 671.

DOI: 10.1016/j.matlet.2004.11.006

[3] Lu Yizhen, Wang Qudong, Zeng Xiaoqin, Ding Wenjiang, Zhai Chunquan, Zhu Yanping. Effects of rare earths on the microstructure, properties and fracture behavior of Mg-Al alloys [J]. Materials Science and Engineering, 2000, A278: 66.

DOI: 10.1016/s0921-5093(99)00604-8

[4] Huang Xiaofeng, Wang Qudong, Zeng Xiaoqin, Yuan Guangyin, Zhu Yanping, Ding Wenjiang. Influence of rare earth on mechanical properties and high temperature creep properties of AM50 magnesium alloy [J]. Journal of the Chinese Rare Earth Society (in Chin. ), 2004, 22(1): 4.

[5] Wang Mingxing, Zhou Hong, Wang Lin. Effect of yttrium and Cerium Addition on Microstructure and Mechanical Properties of AM50 Magnesium Alloy [J]. Journal of Rare Earth, 2007, 25: 233-237.

DOI: 10.1016/s1002-0721(07)60079-9

[6] Wang Qudong, Peng Jianguo, Suery Michel, Jean-Jacques Blandin. Effects of aging on the microstructures and mechanical properties of extruded AM50+xCa magnesium alloys [J]. Rare Metals, 2006, 25: 377-381.

DOI: 10.1016/s1001-0521(06)60071-5

[7] Zhou Hong, Wang Mingxing, Li Wei, Wang Lin, Zhao Yu. Effect of Ce addition on ignition point of AM50 alloy powders [J]. Materials Letters 60 (2006) 3238-3240.

DOI: 10.1016/j.matlet.2006.02.086

[8] Liu M.P., Wang Qudong, Zeng Xiaoqin, Zhu Yanping, Ding Wenjiang. Effects of solution heat treatment on the microstructure of Mg-5Al based alloys containing Ca and RE [J]. Rare Metals, 2002, 21(Suppl. ): 54.

[9] L.Y. Wei, G.L. Dunlop. Development of microstructure in cast Mg-Al-rare earth alloys [J]. Materials Science and Technology. 1996, 12: 741-750.

DOI: 10.1179/mst.1996.12.9.741

In order to see related information, you need to Login.