中國有色金屬學報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 22 No. 5 May 2012 |
（1. Engineering Research Center of Materials Behavior and Design of Ministry of Education,
School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
2. Jiangsu Institute of Advanced Materials, Danyang 212300, China;
3. National Laboratory of Solid State Microstructures and Center for Materials Analysis,
Nanjing University, Nanjing 210093, China）
Abstract:The CuZrAl bulk metallic glass with minor-addition of Fe was prepared by rapid quenching method. The structures were examined by X-ray diffraction (XRD). The effect of Fe on the glass-forming ability was studied by differential scanning calorimetry (DSC). The minor-addition of Fe obviously extends the supercooled liquid region ΔTx. The plastic strain of the Cu44Zr48Al7Fe bulk metallic glass is about 1.5%. The microstructures were examined by transmission electron microscopy (TEM). It is found that when 1%−2% Fe (mole fraction) were introduced into the CuZrAl alloy matrix, nanoscale phase separation occurs in the as-prepared Cu44Zr48Al7Fe bulk metallic glass.
Key words: bulk metallic glass; microstructure; mechanical property; phase separation; Fe addition
