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许联林,樊建锋,张华,夏宗坤,董洪标,许并社.ZK60镁合金在氢化脱氢过程中的组织演化及纳米晶镁合金材料的制备[J].稀有金属材料与工程(英文),2017,46(10):2908~2914.[Xu Lian lin,Fan Jian feng,Zhang Hua,Xia Zong kun,Dong Hong biao and Xu Bing she.Microstructure evolution of ZK60 magnesium alloy during hydrogenation -dehydrogenation processing and preparation nanocrystalline magnesium alloy[J].Rare Metal Materials and Engineering,2017,46(10):2908~2914.]
Microstructure evolution of ZK60 magnesium alloy during hydrogenation -dehydrogenation processing and preparation nanocrystalline magnesium alloy
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Received:June 13, 2015  Revised:August 09, 2015
DOI:
Key words: HDDR  ZK60 alloy  Pressure  Temperature
Foundation item:教育部新世纪优秀人才支持计划(NCET-12-1040);国家自然科学基金( 50901048,51174143);山西省自然科学基金(2015011033, 2015021073) ;教育部科学技术研究重点项目(2012017 );山西省高等学校科技创新项目(2014118);山西省留学人员科技活动择优资助项目。
Author NameAffiliation
Xu Lian lin,Fan Jian feng,Zhang Hua,Xia Zong kun,Dong Hong biao and Xu Bing she  
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Abstract:
      The present paper describes a new technology to manufacture nanocrystalline materials of ZK60 alloys via studying the influence of hydride temperature, hydrogen pressure and reaction time of the HDDR process on the course of hydrogen-desorption, By the means of XRD, OM, SEM and TEM technique, the microstructural evolution of magnesium alloy was researched. Experimental results show that the temperature plays an important role in the hydrogen-desorption process of ZK60 alloy. In the optimal HD process for preparing nanocrystalline Mg alloy powders is that the alloy is hydrogenated at temperature of 350℃ under 2MPa hydrogen pressure for 12 hours and then dehydrogenated at 350℃ for 3 hours in vacuum. As a result, the grain sizes of ZK60 alloy were refined to about 20nm from 160mm.
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