نتایج جستجو برای: equal channel multi angular pressing

تعداد نتایج: 855540  

2017
Lisha Wang Jinghua Jiang Aibin Ma Yuhua Li Dan Song

As a kind of cost-efficient hydrogen storage materials with high hydrogen capacity and light weight, Mg-based alloys have attracted much attention. This review introduces an effective technique in producing bulk ultrafine-grained (UFG) Mg alloys and promoting its hydrogen storage property, namely, equal-channel angular pressing (ECAP). This paper briefly describes the technical principle of ECA...

2017
Jinfang Dong Qing Dong Yongbing Dai Hui Xing Yanfeng Han Jianbo Ma Jiao Zhang Jun Wang Baode Sun

Aluminum single crystal with 99.999% purity was deformed at room temperature by equal channel angular pressing (ECAP) up to 16 passes. Grain size and misorientation of processed samples were quantitatively characterized by TEM and EBSD. The results show that the refinement efficiency of high purity aluminum single crystal was poor in the initial stage. Extrusion by fewer ECAP passes (n ≤ 8) res...

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