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材料工程  2009 

Cu-Zr-Al系Cu基非晶合金弹性性能与团簇结构的相关性

, PP. 15-18

Keywords: 超声水浸聚焦法,团簇结构,弹性性能,化学有序度

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Abstract:

利用超声水浸聚焦法测得团簇结构为Cu6Zr5和Cu8Zr5的非晶合金Cu54Zr42.5Al3.5,Cu58.1Zr35.9Al6的纵波及横波声速,基于克理斯托菲尔方程计算得到了上述非晶合金的弹性性能指标,并由此初步分析了弹性性能与合金团簇结构的内在联系,结果表明两种团簇合金的声速及弹性模量变化规律为Cu54Zr42.5Al3.558.1Zr35.9Al6,且与团簇结构的化学有序度呈一致的变化规律。

References

[1]  AKIHISA.Bulk amorphous and nanocrystalline alloys with high functional properties[J].Materials Science and Engineer A,2001,304-306:1-10.
[2]  CHEN H S,WASEDA Y.Structure of glassy Zr-Cu and Nb-Ni alloy[J].Physica Status Solidi(A) Applied Research,1979,51(2):593-599.
[3]  王清.团簇线判据及Cu-Zr(Hf)基三元块体非晶合金形成[D].大连:大连理工大学学报,2005.
[4]  LU Z P,TAN H,LI Y.The correlation between reduced glass transition temperature and glass forming ability of bulk metallic glasses[J].Scripta Mater,2000,42 (7):667-673.
[5]  简念保.金属和非金属材料力学性能的超声研究[J].中山大学学报,1998,37:65-67.
[6]  季颖斐,马学鸣,董远达,等.新型Zr-Nb基大块非晶合金的形成与性能[J].材料科学与工程,2000,18 (3):39-42.
[7]  AKIHISA.Stabilization of metallic supercooled liquid and bulk amorphous alloys[J].Acta Mater,2000,48:279-306.
[8]  何圣静,高莉如.非晶态材料及其应用[M].北京:机械工业出版社,1987.
[9]  SADOC A,RAOUX D,LAGARDE P.EXAFS studies of the Ni66Y33 and Cu60Zr40 amorphous alloys:a modelling of the pair distribution function with two subshells[J].Non-Cryst Solids,1982,50(3):331-349.

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