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鐵元素添加對Cu基非晶合金結(jié)構(gòu)及力學(xué)性能的影響
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國家自然科學(xué)基金（51061008）


Effects of Fe on Structure and Mechanical Properties of Cu-Based Amorphous Alloys
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    摘要:

    利用銅模吸鑄法制備了(Cu0.46Zr0.44Al0.08Dy0.02)100-xFex (x=0, 1, 3, 5, 7) 非晶合金，利用X射線衍射儀(XRD)、同步熱分析儀(DSC)、透射電鏡(TEM)、萬能試驗(yàn)機(jī)和掃描電鏡(SEM)研究了Fe元素添加對Cu基非晶合金結(jié)構(gòu)及力學(xué)性能的影響。結(jié)果表明：Fe元素的適量添加有利于改善Cu46Zr44.Al8Dy2塊體非晶合金的結(jié)構(gòu)，當(dāng)添加原子分?jǐn)?shù)為1%和3%Fe時，合金為完全非晶結(jié)構(gòu)，并且出現(xiàn)富Fe相和富Cu相兩相分離。Fe元素的適量添加有利于提高Cu46Zr44Al8Dy2合金的強(qiáng)度和塑性，當(dāng)添加3%Fe時，塊體非晶合金的抗壓強(qiáng)度σf和塑性εp分別達(dá)到1835 MPa和0.5%。

    Abstract:

    (Cu0.46Zr0.44Al0.08Dy0.02)100-xFex amorphous alloys with x=0, 1, 3, 5, 7 were prepared by a copper mold casting method. Amorphous structure and mechanical properties of the alloys were studied by X-ray diffraction (XRD), differential scanning calorimetry (DSC), Transmission electron microscopy (TEM), universal testing machine and scanning electron microscope (SEM). The results show that appropriate Fe addition can enhance structure of the amorphous alloys. The structure of the bulk alloy is completely amorphous when the Fe content is x=1 or 3, and apparent nanoscale phase separation occurs in the as-prepared alloys. When x=3 the alloy possesses large compression strength (1835 MPa) and plastic deformation (0.5%).

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崔立治,袁子洲,張香云,馮雪磊.鐵元素添加對Cu基非晶合金結(jié)構(gòu)及力學(xué)性能的影響[J].稀有金屬材料與工程,2015,44(11):2831~2835.[Cui Lizhi, Yuan Zizhou, Zhang Xiangyun, Feng Xuelei. Effects of Fe on Structure and Mechanical Properties of Cu-Based Amorphous Alloys[J]. Rare Metal Materials and Engineering,2015,44(11):2831~2835.]
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  • 收稿日期:2014-11-08
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  • 在線發(fā)布日期: 2016-07-29
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