Journal
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
Volume 21, Issue 4, Pages 739-744Publisher
ELSEVIER
DOI: 10.1016/S1003-6326(11)60774-7
Keywords
AZ80 magnesium alloy; ZK60 magnesium alloy; aging; microstructure; mechanical properties
Categories
Funding
- National Natural Foundation of China [50735005, 50605059]
- Shanxi Provincial Science Foundation for Youths, China [2007021026]
- Development for Science and Technology in Higher Educational Institutes, China [20081027]
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The effect of aging on the microstructure and mechanical properties of AZ80 and ZK60 wrought magnesium alloys was studied with optical microscope and mechanical testers. The results demonstrate that both the tensile strength and elongation of AZ80 alloy increase firstly and then decrease as the aging temperature rises, the peak values appear when the aging temperature is 170 degrees C. The hardness of ZK60 alloy increases firstly and then decreases as the aging temperature rises, and the hardness reaches its peak value at 170 degrees C. However, the toughness of the alloy is just the opposite. Moreover, ZK60 alloy has good performances in both impact toughness and other mechanical properties at the aging temperature from 140 C to 200 degrees C.
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