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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
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新材料界面科学与工程教育部重点实验室 太原理工大学,新材料界面科学与工程教育部重点实验室 太原理工大学,新材料界面科学与工程教育部重点实验室 太原理工大学,新材料界面科学与工程教育部重点实验室 太原理工大学,新材料界面科学与工程教育部重点实验室 太原理工大学,新材料界面科学与工程教育部重点实验室 太原理工大学

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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。


Microstructure evolution of ZK60 magnesium alloy during hydrogenation -dehydrogenation processing and preparation nanocrystalline magnesium alloy
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Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan University of Technology,Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan University of Technology,Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan University of Technology,Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan University of Technology,Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan University of Technology,Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan University of Technology

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    摘要:

    本文通过研究温度、氢压和时间等对ZK60合金氢化-脱氢过程的影响,开发了制备ZK60纳米晶材料的新工艺。在探究ZK60合金完全氢化-脱氢技术的基础上,采用XRD、OM、SEM以及TEM技术考察了氢化-脱氢前后镁合金组织与结构演变。实验结果表明HDDR过程中温度对其氢化-脱氢程度影响最大。在本文中可完全氢化的最佳技术参数为在350℃时,2MPa氢压下保温12h,并抽真空在350℃下保温3h完全脱氢,采用该工艺可将ZK60合金粉末的晶粒由160mm细化到20nm左右。

    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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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,2017,46(10):2908~2914.[Xu Lian lin, Fan Jian feng, Zhang Hua, Xia Zong kun, Dong Hong biao, 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.]
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历史
  • 收稿日期:2015-06-13
  • 最后修改日期:2015-08-09
  • 录用日期:2015-09-07
  • 在线发布日期: 2017-12-01
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