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ZK60鎂合金在氫化脫氫過程中的組織演化及納米晶鎂合金材料的制備
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新材料界面科學與工程教育部重點實驗室 太原理工大學,新材料界面科學與工程教育部重點實驗室 太原理工大學,新材料界面科學與工程教育部重點實驗室 太原理工大學,新材料界面科學與工程教育部重點實驗室 太原理工大學,新材料界面科學與工程教育部重點實驗室 太原理工大學,新材料界面科學與工程教育部重點實驗室 太原理工大學

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教育部新世紀優(yōu)秀人才支持計劃(NCET-12-1040)；國家自然科學基金( 50901048,51174143)；山西省自然科學基金(2015011033, 2015021073) ；教育部科學技術(shù)研究重點項目(2012017 )；山西省高等學校科技創(chuàng)新項目(2014118)；山西省留學人員科技活動擇優(yōu)資助項目。


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:

    本文通過研究溫度、氫壓和時間等對ZK60合金氫化-脫氫過程的影響,開發(fā)了制備ZK60納米晶材料的新工藝。在探究ZK60合金完全氫化-脫氫技術(shù)的基礎(chǔ)上,采用XRD、OM、SEM以及TEM技術(shù)考察了氫化-脫氫前后鎂合金組織與結(jié)構(gòu)演變。實驗結(jié)果表明HDDR過程中溫度對其氫化-脫氫程度影響最大。在本文中可完全氫化的最佳技術(shù)參數(shù)為在350℃時,2MPa氫壓下保溫12h,并抽真空在350℃下保溫3h完全脫氫,采用該工藝可將ZK60合金粉末的晶粒由160mm細化到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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許聯(lián)林,樊建鋒,張華,夏宗坤,董洪標,許并社. ZK60鎂合金在氫化脫氫過程中的組織演化及納米晶鎂合金材料的制備[J].稀有金屬材料與工程,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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  • 收稿日期:2015-06-13
  • 最后修改日期:2015-08-09
  • 錄用日期:2015-09-07
  • 在線發(fā)布日期: 2017-12-01
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