86Ni6Y4.5Co2La1.5非晶合金粉末的微觀結(jié)構(gòu)、表面元素、粒徑分布、熱穩(wěn)定性以及顯微硬度進(jìn)行了分析。結(jié)果表明,大部分粉末的粒徑小于45μm(約為80%),主要由非晶相和納米晶化相組成,其晶化演變過程為非晶→非晶′+fcc-Al→fcc-Al+AlNiY+Al2Y；粉末表面存在厚度約為180.81 nm的Al2O3氧化層,硬度達(dá)300HV0.1以上。"/>

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緊耦合霧化制備Al86Ni6Y4.5Co2La1.5非晶粉末及其表征分析
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裝備再制造技術(shù)國(guó)防科技重點(diǎn)實(shí)驗(yàn)室,裝備再制造技術(shù)國(guó)防科技重點(diǎn)實(shí)驗(yàn)室,中國(guó)科學(xué)院金屬研究所,裝備再制造技術(shù)國(guó)防科技重點(diǎn)實(shí)驗(yàn)室,裝備在制造國(guó)防科技重點(diǎn)實(shí)驗(yàn)室

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國(guó)家科學(xué)自然基金資助項(xiàng)目(51205408)；軍隊(duì)計(jì)劃重點(diǎn)基金資助項(xiàng)目(9140A27030312JB3501)


Preparation of Al86Ni6Y4.5Co2La1.5 amorphous powder by close-coupled gas atomization and its characterization analysis
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    摘要:

    利用掃描電子顯微鏡、X射線衍射儀、X射線光電子能譜分析儀、粒度分析儀、差示掃描熱量?jī)x和顯微硬度儀對(duì)采用緊耦合霧化方法制備的Al86Ni6Y4.5Co2La1.5非晶合金粉末的微觀結(jié)構(gòu)、表面元素、粒徑分布、熱穩(wěn)定性以及顯微硬度進(jìn)行了分析。結(jié)果表明,大部分粉末的粒徑小于45μm(約為80%),主要由非晶相和納米晶化相組成,其晶化演變過程為非晶→非晶′+fcc-Al→fcc-Al+AlNiY+Al2Y；粉末表面存在厚度約為180.81 nm的Al2O3氧化層,硬度達(dá)300HV0.1以上。

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    The morphology, microhardness, microstructure, thermal stability, particle size distribution and phase composition of the gas atomized Al86Ni6Y4.5Co2La1.5 amorphous alloy powder were investigated by scanning electron microscope(SEM), X-ray diffractometry, X-ray Photoelectron Spectroscopy(XPS), particle size analysis, differential scanning calorimetry (DSC), and hardness tester. The result showed that the most size of Al86Ni6Y4.5Co2La1.5 amorphous alloy powder was smaller 45μm(about 80%), and the structure the powder was consisted of amorphous matrix and nano-crystallization phase. Its crystallization process was amorphous→amorphous′+fcc-Al→fcc-Al+AlNiY+Al2Y. There existed layer of Al2O3 oxidation with width of 180.81nm. The hardness of the powder was beyond 300HV0.1.

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王曉明,朱勝,楊柏俊,趙陽(yáng),張垚.緊耦合霧化制備Al86Ni6Y4.5Co2La1.5非晶粉末及其表征分析[J].稀有金屬材料與工程,2017,46(9):2667~2672.[Wang Xiao-ming, Zhu Sheng, Yang Bai-jun, Zhao Yang, Zhang Yao. Preparation of Al86Ni6Y4.5Co2La1.5 amorphous powder by close-coupled gas atomization and its characterization analysis[J]. Rare Metal Materials and Engineering,2017,46(9):2667~2672.]
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  • 收稿日期:2016-05-13
  • 最后修改日期:2016-08-18
  • 錄用日期:2016-09-18
  • 在線發(fā)布日期: 2017-11-29
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