Hostname: page-component-745bb68f8f-l4dxg Total loading time: 0 Render date: 2025-01-11T01:26:06.165Z Has data issue: false hasContentIssue false
  • English
  • Français

Comments on “Fabrication of ternary Mg–Cu–Gd bulk metallic glass with high glass-forming ability under air atmosphere” [H. Men and D.H. Kim, J. Mater. Res. 18, 1502 (2003)]

Published online by Cambridge University Press:  03 March 2011

Z.P. Lu  and
C.T. Liu
Z.P. Lu
Affiliation:
Metals and Ceramic Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
C.T. Liu
Affiliation:
Metals and Ceramic Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
Get access

Abstract

A new Mg-based bulk amorphous alloy (i.e., Mg65Cu25Gd10) has successfully been developed by Men and Kim [H. Men and D.H. Kim, J. Mater. Res. 18, 1502 (2003)]. They showed that this alloy exhibits significantly improved glass-forming ability (GFA) in comparison with Mg65Cu25Y10 alloy. However, this improved GFA cannot be indicated by the supercooled liquid region ΔT and the reduced glass-transition temperature Trg. As shown in the current comment, the new parameter γ, Tx/(Tg + Tl) defined in our recent papers [Z.P. Lu and C.T. Liu, Acta Mater. 50, 3501 (2002); Z.P. Lu and C.T. Liu, Phys. Rev. Lett. 91, 115505 (2003)] can well gauge GFA for bulk metallic glasses, including the current Mg-based alloys.

Keywords

Metallic glassesStabilityCasting
Type
Commentary
Information
Journal of Materials Research , Volume 19 , Issue 2 , February 2004 , pp. 427 - 428
Copyright
Copyright © Materials Research Society 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Men, H. and Kim, D.H.: J. Mater. Res. 18, 1502 (2003).CrossRefGoogle Scholar
2Lu, Z.P. and Liu, C.T.: Phys. Rev. Lett. 91, 115505 (2003).Google Scholar
3Lu, Z.P. and Liu, C.T.: Acta Mater. 50, 3501 (2002).CrossRefGoogle Scholar
4Inoue, A., Kato, A., Zhang, T., Kim, S.G. and Masumoto, T.: Mater. Trans. JIM 32, 609 (1991).CrossRefGoogle Scholar
5Inoue, A., Nakamura, T. and Nishiyama, N.: Mater. Trans. JIM 33, 937 (1992).CrossRefGoogle Scholar
6Zhao, Z.F., Zhang, Z., Wen, P., Pan, M.X., Zhao, D.Q., Wang, W.H. and Wang, W.L.: Appl. Phys. Lett. 82, 4699 (2003).Google Scholar
7Zhang, Q.S., Zhang, H.F., Deng, Y.F., Ding, B.Z. and Hu, Z.Q.: Scr. Mater. 49, 273 (2003).CrossRefGoogle Scholar