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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 15    No. 3    June 2005

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Deformation of Zr41Ti14Cu12.5Ni10Be22.5 bulk amorphous  alloy under isobaric pressure in super-cooled liquid region
ZHANG Ke-qin(张克勤)1, LU Qi-zhu(卢启柱)2

1. Key Laboratory of Metastable Materials Science and Technology, 
Yanshan University, Qinhuangdao 066004, China; 
2. College of Information Science  and  Engineering, Yanshan  University, 
Qinhuangdao 066004, China

Abstract:The curve of crystallization transition during continuous heating for the Zr41Ti14Cu12.5Ni10Be22.5 bulk amorphous alloy was measured by means of dilatation(Fully automatic transformation recording/measuring instrument) and X-ray diffraction(XRD) method. The deformation behavior of the alloy at various heating rates in the supercooled liquid region was studied. The results show that the glass transition temperature of the alloy increases slightly and the supercooled liquid region(SLR) increases significantly with increasing heating rate. The deformation amount under isobaric pressure of 1N for the alloy in the SLR increases with increasing heating rate. As the heating rate of the alloy increases from 5 to 100℃/min, the amount of deformation of the alloy increases from 8.3% to 45%.

 

Key words: Zr41Ti14Cu12.5Ni10Be22.5 alloy; bulk amorphous alloy; supercooled liquid region; deformation

ISSN 1672-7029
CN 43-1423/U

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