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氫化-脫氫法制備ZK60鎂合金納米晶材料
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太原理工大學(xué),太原理工大學(xué)

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中圖分類號(hào):

TB31

基金項(xiàng)目:

教育部新世紀(jì)優(yōu)秀人才支持計(jì)劃（NCET-12-1040）；國(guó)家自然科學(xué)基金( 50901048，51174143)；教育部科學(xué)技術(shù)研究重點(diǎn)項(xiàng)目(2012017 )；山西省自然科學(xué)基金( 2010021022-5)


Nanocrystalline ZK60 Alloy Powders Prepared by the hydrogenation-desorption Treatment
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Taiyuan University of Technology,Taiyuan University of Technology

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    摘要:

    本文研究了鑄態(tài)ZK60鎂合金粉末的氫化-脫氫優(yōu)化技術(shù)及其在此過程中的晶粒尺寸納米化機(jī)理。通過XRD、OM和TEM考察了氫化-脫氫過程中ZK60鎂合金粉末相結(jié)構(gòu)和顯微組織演化規(guī)律，獲得了制備納米晶材料的氫化、脫氫工藝條件。結(jié)果表明：ZK60合金粉末在450 ℃、2 MPa條件下保溫12 h后能夠完全氫化，隨后在350 ℃保溫并連續(xù)抽真空3 h即可完全脫氫，在此過程中ZK60合金粉末的平均晶粒尺寸也從約150 祄被細(xì)化到約30 nm。

    Abstract:

    In this paper, the hydrogenation-desorption technology was applied to process as-cast ZK60 alloy, and the nanocrystallization mechanism in this processing was studied. The phase and microstructure evolution of ZK60 alloy powders at different states (before hydrogenation, after hydrogenation and after desorption) were characterized by powder X-ray diffraction, optical microscopy and transmission electron microscopy, respectively. The results reveal that ZK60 powders are completely hydrogenated at 450 ℃ under 2 MPa for 12 h and then thoroughly dehydrogenated at 350 ℃ for 3 h in vacuum; meanwhile, the grain sizes of ZK60 alloy powders are refined from 150 μm to 30 nm as well.

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王新,樊建鋒.氫化-脫氫法制備ZK60鎂合金納米晶材料[J].稀有金屬材料與工程,2016,45(8):2031~2035.[wangxin, Fan Jianfeng. Nanocrystalline ZK60 Alloy Powders Prepared by the hydrogenation-desorption Treatment[J]. Rare Metal Materials and Engineering,2016,45(8):2031~2035.]
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  • 收稿日期:2014-06-30
  • 最后修改日期:2014-11-02
  • 錄用日期:2014-11-20
  • 在線發(fā)布日期: 2016-10-09
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