J Mater Sci Technol ›› 2010, Vol. 26 ›› Issue (2): 177-180.

• Regular Papers • Previous Articles     Next Articles

Crystallization Behavior of Zr55Al10Cu30Ni5 Bulk Metallic Glass Rolled at Room Temperature

Yong Hu1,2), Jinfu Li1), Pengna Zhang1), Yaohe Zhou1)   

  1. 1) State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    2) School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
  • Received:2008-06-24 Revised:2009-03-03 Online:2010-02-28 Published:2010-02-28
  • Contact: Jinfu LI
  • Supported by:

    the National Natural Science Foundation of China (Grant No. 50671066)

Abstract:

Zr55Al10Cu30Ni5 bulk metallic glass was rolled up to 95% in thickness reduction at room temperature, and the dependences of microstructure and thermal stability on the strain were investigated. It is revealed that phase transformations do not occur during the rolling, but the split of the crystallization peaks becomes more and more obvious with increasing thickness reduction. Analyses of the radial distribution functions and the pair correlation functions indicate that the rolling has enhanced the short-range order, which should be responsible for the enlarging split of the crystallization peaks.

Key words: Metallic glass, Plastic deformation, Microstructure, Thermal stability