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熔體快淬Zr0.9Ti0.1V2.2合金的微結(jié)構(gòu)與儲(chǔ)氫性能
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凝固技術(shù)國(guó)家重點(diǎn)實(shí)驗(yàn)室基礎(chǔ)研究項(xiàng)目 (70-QP-2010); 先進(jìn)材料及其成型技術(shù)學(xué)科引智計(jì)劃 (B08040)


Microstructure and Hydrogen Storage Properties of Melt-spun Zr0.9Ti0.1V2.2
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    摘要:

    為改善Zr-Ti-V系列Laves相合金的吸氫動(dòng)力學(xué)性能，本研究設(shè)計(jì)成分為Zr0.9Ti0.1V2.2的非化學(xué)計(jì)量比合金并采用熔體快淬工藝制備合金薄帶。研究合金快淬薄帶的微觀組織與相結(jié)構(gòu)、吸氫動(dòng)力學(xué)、吸放氫PCT特征及吸氫熱力學(xué)參數(shù)。進(jìn)而討論非化學(xué)計(jì)量比合金中微結(jié)構(gòu)與儲(chǔ)氫性能之間的關(guān)系。結(jié)果表明，快淬薄帶中合金主相為C15型ZrV2及V-bcc相，熔體快淬可消除鑄態(tài)合金中的包晶反應(yīng)殘留相α-Zr。熔體快淬合金的吸氫動(dòng)力學(xué)性能優(yōu)異，但由于單胞體積收縮導(dǎo)致其吸氫量降低

    Abstract:

    The non-stoichiometric Zr0.9Ti0.1V2.2 alloy was designed and the melt-spun technology was used in this work to improve the hydrogenation kinetics of Laves phase Zr-Ti-V alloys. The microstructure, phase constitution, hydrogenation kinetics, PCT characteristics and the thermodynamics parameters of melt-spun ribbons were investigated. The relationship between microstructure and hydrogen storage properties of non-stoichiometric alloys was further discussed. The results show that C15 type ZrV2 phase and V-bcc phase are the dominant phases in the alloy, and melt-spun can eliminate the residual α-Zr phase of peritectic reaction in the as-cast alloy. The hydrogenation kinetics is fast in melt-spun alloy, but the hydrogen absorption capacity decreases due to the shrink of cell volume

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張?jiān)讫?李金山,張鐵邦,寇宏超,胡 銳,薛祥義.熔體快淬Zr0.9Ti0.1V2.2合金的微結(jié)構(gòu)與儲(chǔ)氫性能[J].稀有金屬材料與工程,2015,44(6):1465~1468.[Zhang Yunlong, Li Jinshan, Zhang Tiebang, Kou Hongchao, Hu Rui, Xue Xiangyi. Microstructure and Hydrogen Storage Properties of Melt-spun Zr0.9Ti0.1V2.2[J]. Rare Metal Materials and Engineering,2015,44(6):1465~1468.]
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  • 收稿日期:2014-06-01
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  • 在線發(fā)布日期: 2016-01-04
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