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Fe/Cr比對Zr(Fe,Cr)2吸氫性能的影響
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“863”計劃項目（2008AA031701）；上海市重點學科建設項目（S30107）


Effect of Fe/Cr Ratio on the Hydrogen Absorption Performance of Zr(Fe,Cr)2
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    摘要:

    參照鋯合金中的第二相成分，熔煉2種不同F(xiàn)e/Cr比的Zr(Fe,Cr)2 (Fe/Cr=2和0.5)和ZrCr2（Fe/Cr=0）3種試驗合金，對它們進行壓力-成分-溫度（P-C-T）測試和吸放氫動力學測試。同時用XRD對360 ℃吸氫前后的樣品進行物相分析。實驗結(jié)果表明，這3種合金在50，200，360 ℃ 3個溫度下，均有吸氫量隨Fe/Cr比值的降低而增加的現(xiàn)象。另外，在360 ℃，4 MPa氫氣氣氛中測試時，這3種不同合金的可逆吸放氫量和吸放氫速度隨Fe/Cr比的降低而增加。XRD測試表明，在360 ℃吸氫后并沒有氫化物生成。

    Abstract:

    Referring to the compositions of second phase particles (SPPs) in zirconium alloys, three kinds of experimental Zr(Fe,Cr)2 alloy with different Fe/Cr ratio i.e. Fe/Cr=2 and 0.5 for Zr(Fe,Cr)2 and Fe/Cr=0 for ZrCr2 were prepared. Then the pressure-composition- temperature (P-C-T) curves and kinetic curves of hydrogen absorbing and desorbing were obtained. XRD was employed to analyze the structures of the specimens before and after hydrogen absorbing at 360 oC. Results show that the amount of hydrogen absorption of the three alloys all increases with the decrease of Fe/Cr ratio at 50, 200 and 360 oC. In addition, the amount and rate of reversible hydrogen absorption and desorption of the three alloys all increase with the decrease of Fe/Cr ratio when tested in 360 oC, 4 MPa H2 atmosphere. X-ray diffraction analysis indicates that no hydride is detected after they absorb hydrogen at 360 oC.

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王錦紅,姚美意,周邦新,耿建橋,夏 爽,曹瀟瀟. Fe/Cr比對Zr(Fe, Cr)2吸氫性能的影響[J].稀有金屬材料與工程,2011,40(6):1084~1088.[Wang Jinhong, Yao Meiyi, Zhou Bangxin, Geng Jianqiao, Xia Shuang, Cao Xiaoxiao. Effect of Fe/Cr Ratio on the Hydrogen Absorption Performance of Zr(Fe, Cr)2[J]. Rare Metal Materials and Engineering,2011,40(6):1084~1088.]
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  • 收稿日期:2010-06-05
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