Study of the microstructures and mechanical properties of ZK61 magnesium alloy cylindrical parts with inner ribs formed by hot power spinning

AbstractIn this paper, the effects of extrusion–shear (ES) on the microstructures and mechanical properties of AZ31 magnesium alloy has been studied, which has been achieved by conducting a lot of experiments and tests, including ES process, direct extrusion with different billet temperatures, microstructure analysis, hardness test, tensile & compression tests. The results show that the ES-processed rods has higher strengths (yield strength and tensile strength) than the direct extrusion ones with the same billet temperature, which contributed to their lower averaged grain size obtained from microstructure analysis according to Hall–Petch relation. Besides, the hardness of ES-processed AZ31 magnesium alloy decreases with the increasing of billet temperature. By comparing the two processes, it can be seen that the ES process could refine the microstructure and improve the mechanical properties of magnesium alloy.

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Evolution of microstructures and mechanical properties of AZ31B magnesium alloy weldment with active oxide fluxes and GTAW process

Journal of the Chinese Institute of Engineers ◽

10.1080/02533839.2011.618242 ◽

2011 ◽

Vol 34 (8) ◽

pp. 1013-1023 ◽

Cited By ~ 7

Author(s):

Chun-Ming Lin ◽

Ju-Jen Liu ◽

Hsien-Lung Tsai ◽

Ching-Min Cheng

Keyword(s):

Mechanical Properties ◽

Magnesium Alloy ◽

Az31b Magnesium Alloy ◽

Gtaw Process ◽

Microstructures And Mechanical Properties

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Effect of Thermal History on Microstructures and Mechanical Properties of AZ31 Magnesium Alloy Prepared by Friction Stir Processing

Materials ◽

10.3390/ma7031573 ◽

2014 ◽

Vol 7 (3) ◽

pp. 1573-1589 ◽

Cited By ~ 28

Author(s):

Fang Chai ◽

Datong Zhang ◽

Yuanyuan Li

Keyword(s):

Mechanical Properties ◽

Magnesium Alloy ◽

Friction Stir Processing ◽

Thermal History ◽

Az31 Magnesium Alloy ◽

Friction Stir ◽

Microstructures And Mechanical Properties

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Research on the Microstructures and Mechanical Properties of Annealed Cold Upsetting AZ31 Magnesium Alloy

Materials Science Forum ◽

10.4028/www.scientific.net/msf.610-613.826 ◽

2009 ◽

Vol 610-613 ◽

pp. 826-830

Author(s):

Tian Mo Liu ◽

Wei Hui Hu ◽

Qing Liu

Keyword(s):

Mechanical Properties ◽

Grain Size ◽

Magnesium Alloy ◽

Magnesium Alloys ◽

Annealing Temperature ◽

Volume Fraction ◽

Cold Upsetting ◽

Cast Magnesium Alloys ◽

Microstructures And Mechanical Properties ◽

Cast Magnesium

The microstructures and mechanical properties of cold upsetting magnesium alloys were investigated upon anneal under different conditions. The results show that a large amount of twins were observed in the original grains of cold upsetting AZ31 magnesium alloys. The twins disappeared gradually and recrystal grains formed after anneal. The volume fraction of the recrystal grains increases as the strain of samples rises. Recrystal grain size grows large with the elevated annealing temperature. Recrystal grain size reduces at first and then grows as the annealing time is prolonged. In addition, compared with as-cast magnesium alloys, the yield strength of cold upsetting samples increase apparently due to grain refinement after anneals.

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