Formability Evaluation of both Monolithic and Multiphase Zr-Based Bulk Metallic Glasses


Article Preview

The formability of several Zr-based bulk metallic glasses in the supercooled liquid region has been estimated. Using the data obtained from compression tests, normalized processing maps based on a dynamic materials model (DMM) have been constructed to evaluate feasible forming conditions. Laboratory-scale hot extrusion of the Zr44Ti11Cu9.8Ni10.2Be25 BMG has also been carried out to clarify the effectiveness of the normalized processing maps established in this study. The influence of thermal properties and microstructural differences on the formability of BMGs is interpreted in terms of a normalized temperature within the supercooled liquid region.



Key Engineering Materials (Volumes 345-346)

Edited by:

S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim




K.S. Lee et al., "Formability Evaluation of both Monolithic and Multiphase Zr-Based Bulk Metallic Glasses", Key Engineering Materials, Vols. 345-346, pp. 105-108, 2007

Online since:

August 2007




[1] K. S. Lee and Y. W. Chang, Mater. Sci. Eng. A, 399 (2005), 238.

[2] Y. Kawamura, T. Shibata, A. Inoue and T. Masumoto, Acta Mater., 46 (1998), 253.

[3] J. F. Sun, Y. J. Huang, J. Shen, G. Wang and D. G. McCartney, J. Alloys Compd., 415 (2006), 198.

[4] K. S. Lee, H-J. Jun and Y. W. Chang, Mater. Sci. Eng. A, (in press).

[5] K. S. Lee and Y. W. Chang, Met. Mater. Int., 11 (2005), 53.

[6] H-J. Jun, K. S. Lee, Y. C. Yoo and Y. W. Chang, Mater. Sci. Forum, 539-543 (2007), 2111.

[7] Y. V. R. K. Prasad, H. L. Gegel, S. M. Doraivelu, J. C. Malas, J. T. Morgan, K. A. Lark and D. R. Barker, Metall. Trans. 15A (1984), 1883.

[8] C. C. Hays, C. P. Kim and W. L. Johnson, Appl. Phys. Lett., 75 (1999) 1089.

[9] U. Kühn, J. Eckert, N. Mattern and L. Schultz, Mater. Sci. Eng. A, 375 (2004), 322.

[10] M. L. Lee, Y. Li and C. A. Schuh, Acta Mater., 52 (2004), 4121.

[11] D. Padmavardhani and Y. V. R. K. Prasad, Mater. Sci. Eng. A, 157 (1992), 43.

[12] K. S. Lee, W. Bang, T. K. Ha, S. Ahn and Y. W. Chang, J. Metastable Nanocryst. Mater., 15-16 (2003), 155.

[13] J. Schroers and N. Paton, Advanced Mater. Proc., January (2006).