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Microstructure, mechanical properties and ……

 

论文名称

Microstructure, mechanical properties and fracture behavior of peak-aged Mg–4Y–2Nd–1Gd alloys under different aging conditions

发表期刊名称

Materials Science and Engineering A

简介

The morphology of precipitates and grain boundaries of peak-aged Mg34Y32Nd31Gd alloys under different aging conditions were analyzed by transmission electron microscopy (TEM), and the mechanical properties and fracture behavior of the studied alloys both at room and elevated temperatures were investigated. The β′′ and β′ phases are the main precipitates of the alloys peak-aged at 200 °C and 225 °C, while the alloy peak-aged at 250 °C mainly consists of β1 and β phases. Discussion on relationship between precipitates and mechanical properties, fracture behavior reveals that the precipitates' density, kind and arrangement are the dominating factors influencing the mechanical properties, and the combined influence of grain boundary structure and precipitation hardening determine the fracture mechanism of Mg34Y32Nd31Gd alloys.

图片

发表时间

2013.01

影响因子

2.567

完成人

刘志杰, 吴国华, 刘文才, 庞松, 丁文江

联系人

吴国华

电话

 

 

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