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Fe含量對(duì)鉬銅合金組織和性能的影響
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國(guó)家自然科學(xué)基金 (50834003，50871085)；國(guó)家“863”計(jì)劃 (2009AA03Z522)


Effect of Fe Content on the Microstructure and Properties of Mo-Cu Alloy
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    摘要:

    采用熔滲法制取不同F(xiàn)e含量的Mo-Cu合金。利用場(chǎng)發(fā)射掃描電子顯微鏡(SEM)和能譜(EDS)儀分析不同F(xiàn)e含量的Mo-Cu合金的顯微組織及Fe元素的分布，研究Fe含量對(duì)Mo-Cu合金的致密度、熱導(dǎo)率、電導(dǎo)率、硬度以及顯微組織的影響。結(jié)果表明，添加1%Fe (質(zhì)量分?jǐn)?shù))使Mo-Cu合金的致密度和硬度提高，但是導(dǎo)電和導(dǎo)熱性能降低。微觀(guān)分析表明，添加活化元素Fe后合金顯微組織更加致密，Cu呈網(wǎng)狀分布，Mo骨架燒結(jié)頸變大，但Fe含量過(guò)多時(shí)，不利于合金性能的提高

    Abstract:

    Mo-Cu alloys with different Fe content were prepared by an infiltration method. The microstructure and distribution of Fe of the alloys were analyzed by field-emission scanning electron microscope (FESEM) and energy disperse spectroscopy (EDS). The influence of Fe content on the density, thermal conductivity, electrical conductivity, hardness and microstructure was investigated. The results show that 1% Fe addition (mass fraction) increases the density and the hardness of the Mo-Cu alloys, but decreases thermal conductivity and electrical conductivity; meanwhile the microstructure becomes more compact, and Cu distributes in the form of mesh, and Mo skeleton sintering necks become bigger. However, too much Fe is not conducive to the improvement of properties

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王 博,梁淑華,鄒軍濤,楊曉紅,肖 鵬. Fe含量對(duì)鉬銅合金組織和性能的影響[J].稀有金屬材料與工程,2011,40(9):1621~1624.[Wang Bo, Liang Shuhua, Zou Juntao, Yang Xiaohong, Xiao Peng. Effect of Fe Content on the Microstructure and Properties of Mo-Cu Alloy[J]. Rare Metal Materials and Engineering,2011,40(9):1621~1624.]
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  • 收稿日期:2010-09-13
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