Cu基块状非晶晶化过程的微观组织研究Research on microstructure of Cu-based bulk metallic glass during crystallization
李春燕,寇生中,丁雨田,许广济
摘要(Abstract):
以Cu50Zr42Al8块状非晶合金为对象,在其玻璃转化温度(Tg)以下不同的温度(400、475和600K)进行保温1h等温退火处理,用X射线衍射仪(XRD)、电子探针(EPMA)等对晶化过程的微观组织进行研究。结果表明:试样经475K退火后有少量的晶体相Cu10Zr7析出,600K退火试样的析出相同样仅为Cu10Zr7,该相的体积和数量有所增大。表明Cu50Zr42Al8块状非晶合金在Tg以下进行1h的等温退火处理后,试样可以发生晶化,并且析出相只有Cu10Zr7,其体积和数量随退火温度的升高而增大。
关键词(KeyWords): Cu基块状非晶;等温退火;晶化;微观组织
基金项目(Foundation): 国家自然科学基金(50371016)
作者(Author): 李春燕,寇生中,丁雨田,许广济
参考文献(References):
- [1]Gibson M A,Delamore G W.Crystallization kinetics of some iron-based metallic glasses[J].Journal of Materials Science,1987,22:4550-4557.
- [2]Trujillo M P,Orozco A,Casas-Ruiz M.Crystallization kinetics study of Fe-B-Si metallic glasses in the theoretical frame of the JMA model[J].MaterialsLetters,1995,24(5):287-290.
- [3]Ye F,Lu K.Crystallization kinetics of Al-La-Ni amorphous alloy[J].Journal of Non-Crystalline Solids,2000,262(1-3):228-235.
- [4]Lu K,Wang J T.Activation energies for crystal nucleation and growth in amorphous alloys[J].Materials Science and Engineering A,1991,133:500-503.
- [5]Kieyvin V,Vaillant M L,Rouxel T.Thermal stability and crystallization of a Zr55Cu30Al10Ni5bulk metallic glass studied by in-situ ultrasonic echography[J].Intermetallilcs,2002,10(11-12):1289-1296.
- [6]Leonhard A,Xing L Q,Heilmaier M.Effect of crystalline precipitations of the mechanical behavior of bulk glass forming Zr-based alloys[J].NanostructuredMaterials,1998,10(5):805-817.
- [7]Lubhorsky F E.非晶态金属合金[M].柯成,唐与湛,罗阳,等译.北京:冶金工业出版社,1989.
- [8]高玉来.多组元Zr基大块非晶合金纳米晶化行为研究[D].哈尔滨工业大学,2003.
- [9]孔见,陈光.Cu47Ti34Zr11Al8块体非晶合金的制备[J].特种铸造及有色合金,2003,(6):11-13.Kong Jian,Chen Guang.Preparation of Cu47Ti34Zr11Al8bulk amorphous alloy[J].Special Casting&Nonferrous Alloys,2003,(6):11-13.
- [10]王焕荣,滕新营,石志强,等.非晶态Cu56Zr44合金的结构及其等温退火晶化过程的研究[J].物理学报,2001,50(11):2192-2197.WANG Rong-huan,TENG Xin-Ying,SHI Zhi-qiang,et al.Study on microstructure and crystallization of amorphous Cu56Zr44alloy by means of isothermalannealing[J].Acta Physica Sinica,2001,50(11):2192-2197.
- [11]崔忠圻,刘北兴.金属学与热处理原理[M].哈尔滨:哈尔滨工业大学出版社,1998.
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