Effect of equal channel angular pressing (ECAP) on hydrogen storage properties of commercial magnesium alloy AZ61

被引：37
作者：
Huang, Song-Jeng [1 ]
Chiu, Chun [1 ]
Chou, Tun-Yu [1 ]
Rabkin, Eugen [2 ]
机构：
[1] Natl Taiwan Univ Sci & Technol, Dept Mech Engn, 43 Keelung Rd,Sec 4, Taipei, Taiwan
[2] Technion Israel Inst Technol, Dept Mat Sci & Engn, IL-3200003 Haifa, Israel
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 09期
关键词：
Hydrogen storage; Equal channel angular pressing (ECAP); Gravity casting; AZ61 magnesium alloy; PERFORMANCE; STABILITY;
D O I：
10.1016/j.ijhydene.2018.01.044
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Cast commercial AZ61 magnesium alloys were processed through equal channel angular pressing (ECAP) and were comminuted into chips by filing with a rasp in order to measure their hydrogen storage properties. The effects of the number of. ECAP passes and the processing route of ECAP on the hydrogen storage properties of AZ61 magnesium alloys were,investigated. ECAP processing led to severe dynamic recrystallization and grain refinement of the AZ61 alloys. Of the analyzed samples, the AZ61 alloy processed via the Bc ECAP route with eight passes exhibited the smallest grain size, the fastest hydrogen absorption and desorption rates, and the highest gravimetric hydrogen storage capacity of 6.2 wt%. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：4371 / 4380
页数：10
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