Mechanical Behaviors of Magnesium Alloy AZ61 Under Different Strain Rates and Heating Rates

被引：0
|
作者：
Chen, Bin [1 ,2 ]
Yuan, Quan [1 ]
Luo, Ji [1 ]
Zhang, Dingfei [3 ]
Quan, Guozheng [3 ]
机构：
[1] Chongqing Univ, Coll Resource & Environm Sci, Chongqing 400044, Peoples R China
[2] Chongqing Univ, Key Lab Exploitat Southwest Resources & Environm, Minist Educ, Chongqing 400044, Peoples R China
[3] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
来源：
ADVANCED STRUCTURAL MATERIALS | 2011年 / 686卷
关键词：
AZ61 magnesium alloy; temperature; heating rate; strength; plasticity; MICROSTRUCTURE;
D O I：
10.4028/www.scientific.net/MSF.686.208
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of strain rate (SR) and heating rate (HR) on the mechanical behaviors of the tensile specimens of magnesium alloy AZ61 were experimentally investigated using a Gleeble-1500 thermal-mechanical material testing system. It showed that the higher the temperature is, the lower the ultimate strength of the specimens will be. The higher the heating rate is, the higher the ultimate strength of the specimens will be. The metallurgraphs of the fracture section of the specimens were also experimentally investigated for exploring their failure mechanism under different temperatures and heating rates. It showed that the high temperatures and high heating rates will induce microvoids in the specimens. The microvoids make the specimens failure under relative low loads.
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页码：208 / +
页数：2
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