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添加Mn和Ce對(duì)Ti0.27Cr0.33V0.4合金儲(chǔ)氫性能的影響
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國(guó)家“863”計(jì)劃項(xiàng)目資助（2012AA051503）


Effects of Mn and Ce Addition on Hydrogen Storage Properties of Ti0.27Cr0.33V0.4 Alloy
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    采用XRD、SEM/EDS和PCT測(cè)試等方法，研究了添加Mn和Ce對(duì)于(Ti0.27Cr0.33V0.40)100-xMnxCey 合金的組織結(jié)構(gòu)和儲(chǔ)氫性能的影響。結(jié)果表明：Mn的添加促進(jìn)了富Ti相的析出，減小了合金bcc主相的晶格常數(shù)，平臺(tái)壓升高，殘余氫量減小，當(dāng)Mn含量為8at%時(shí)其有效儲(chǔ)氫量達(dá)到最大值，在此基礎(chǔ)上添加Ce，有效抑制了富Ti相的析出，促進(jìn)了合金成分的均勻分布，增大了合金的晶格常數(shù)，改善了合金的平臺(tái)性能，提高了合金的最大吸氫量和有效儲(chǔ)氫量。

    Abstract:

    Effects of of Mn and Ce addition on hydrogen-storage microstructure and properties of (Ti0.27Cr0.33V0.4)100-xMnxCey alloy have been investigated by XRD, SEM/EDS and P-C isotherm measurements. The results show that the addition of Mn enhances the precipitation of Ti-rich phases. With the increase of Mn addition, the lattice parameters of bcc main phase are reduced, the plateau pressure of alloys is increased, and the amount of residual hydrogen in alloys is decreased. The maximum capacity of effective hydrogen storage is obtained at 8at% of Mn content in alloys. Based on this alloy, the addition of Ce inhibits the precipitation of Ti-rich phases and facilitates homogeneous distribution of composition in the bulks. With the increase of Ce addition, the lattice parameters of alloys are increased, plateau pressure of alloys is improved, and the maximum capacity and effective capacity of hydrogen storage are raised.

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蔣利軍,劉曉鵬,屠海令,陳立泉.添加Mn和Ce對(duì)Ti0.27Cr0.33V0.4合金儲(chǔ)氫性能的影響[J].稀有金屬材料與工程,2014,43(12):2998~3002.[Jiang Lijun, Liu Xiaopeng, Tu Hailing, Chen Liquan. Effects of Mn and Ce Addition on Hydrogen Storage Properties of Ti0.27Cr0.33V0.4 Alloy[J]. Rare Metal Materials and Engineering,2014,43(12):2998~3002.]
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  • 收稿日期:2013-12-15
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  • 在線發(fā)布日期: 2015-04-16
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