Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-28T04:36:41.292Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of Ag Addition on the Improvement of Glass-forming Ability and Plasticity of Mg–Cu–Gd Bulk Metallic Glass

Published online by Cambridge University Press:  03 March 2011

E.S. Park ,
J.Y. Lee  and
D.H. Kim
E.S. Park
Affiliation:
Center for Non-crystalline Materials, Department of Metallurgical Engineering, Yonsei University, Seoul 120-749 Korea
J.Y. Lee
Affiliation:
Center for Non-crystalline Materials, Department of Metallurgical Engineering, Yonsei University, Seoul 120-749 Korea
D.H. Kim*
Affiliation:
Center for Non-crystalline Materials, Department of Metallurgical Engineering, Yonsei University, Seoul 120-749 Korea
*
a) Address all correspondence to this author. e-mail: dohkim@yonsei.ac.kr
Get access

Abstract

The effect of Ag substitution for Cu on the glass forming ability (GFA) and mechanical properties of Mg65Cu25−xAgxGd10 (x = 0, 5, 10, 15, 20, 25) alloyswere investigated using x-ray diffractometry and differential scanning calorimetry.The partial substitution of Cu by Ag in Mg65Cu25Gd10 promoted the GFA. Mg65Cu20Ag5Gd10 bulk metallic glass (BMG) with a diameter of 11 mm could be fabricated by conventional copper-mold casting method in air atmosphere. The Mg65Cu20Ag5Gd10 BMG exhibits yielding and plastic deformation during compressive loading. The compressive fracture strength, total strain to failure, and plastic strain to failure of the Mg65Cu20Ag5Gd10 BMG were 909 MPa, 2.21% and 0.5%, respectively.

Keywords

Mechanical propertiesMetallic glass
Type
Articles
Information
Journal of Materials Research , Volume 20 , Issue 9 , September 2005 , pp. 2379 - 2385
Copyright
Copyright © Materials Research Society 2005

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

1Inoue, A., Kato, A., Zhang, T., Kim, S.G., Masumoto, T. and Mg-Cu, Y.: Amorphous alloys with high mechanical strengths produced by a metallic mold casting method. Mater. Trans. JIM 32, 609 (1991).CrossRefGoogle Scholar
2Li, Y., Jones, H. and Davies, H.A.: Determination of critical thickness for glass formation in new easy glass forming magnesium-base alloys by the wedge chill casting technique. Scripta Metall. 26, 1371 (1992).CrossRefGoogle Scholar
3Men, H. and Kim, D.H.: Fabrication of ternary Mg–Cu–Gd bulk metallic glass with high glass-forming ability under air atmosphere. J. Mater. Res. 18, 1502 (2003).Google Scholar
4Park, E.S., Kang, H.G., Kim, W.T. and Kim, D.H.: The effect of Ag addition on the glass-forming ability of Mg–Cu–Y metallic glass alloys. J. Non-Cryst. Solids 279, 154 (2001).CrossRefGoogle Scholar
5Amiya, K. and Inoue, A.: Preparation of bulk glassy Mg65Y10Cu15Ag5Pd5 alloy of 12 mm in diameter by water quenching. Mater. Trans. 42, 543 (2001).CrossRefGoogle Scholar
6Ma, H., Ma, E. and Xu, J.: A new Mg65Cu7.5Ni7.5Zn5Ag5Y10 bulk metallic glass with strong glass-forming ability. J. Mater. Res. 18, 2288 (2003).Google Scholar
7Men, H., Kim, W.T. and Kim, D.H.: Fabrication and mechanical properties of Mg65Cu15Ag5Pd5Gd10 bulk metallic glass. Mater. Trans. 44, 2141 (2003).CrossRefGoogle Scholar
8Park, E.S., Kim, W.T. and Kim, D.H.: Bulk glass formation in Mg–Cu–Ag–Y–Gd alloy. Mater. Trans. 45, 2474 (2004).CrossRefGoogle Scholar
9Brandes, E.A. and Brook, G.B.: Smithells Metals Reference Book, 7th ed. (Butterworth-Heinemann, Oxford, U.K., 1992), pp. 4–41, 4-42.Google Scholar
10Miedema, A.R., de Boer, F.R. and Boom, R.: Enthalpy of formation of transition metal alloys. Calphad 1, 341 (1977).CrossRefGoogle Scholar
11Amiya, K. and Inoue, A.: Thermal stability and mechanical properties of Mg–Y–Cu–M (M = Ag, Pd) bulk amorphous alloys. Mater. Trans. JIM 41, 1460 (2000).Google Scholar
12Ma, H., Xu, J. and Ma, E.: Mg-based bulk metallic glass composite with plasticity and high strength. Appl. Phys. Lett. 83, 2793 (2003).Google Scholar
13Huang, R., Suo, Z., Prevost, J.H. and Nix, W.D.: Inhomogeneous deformation in metallic glasses. J. Mech. Phys. Solids 50, 1011 (2002).Google Scholar
14Kang, H.G., Park, E.S., Kim, W.T., Kim, D.H. and Cho, H.K.: Fabrication of bulk Mg–Cu–Ag–Y glassy alloy by squeeze casting. Mater. Trans. JIM 41, 846 (2000).Google Scholar
15Inoue, A.: Stabilization of metallic supercooled liquid and bulk amorphous alloys. Acta Mater. 48, 279 (2000).CrossRefGoogle Scholar
16Hruby, A.: Evaluation of glass-forming tendency by means of DTA. Czech. J. Phys. B 22, 1187 (1972).CrossRefGoogle Scholar
17Lu, Z.P. and Liu, C.T.: A new glass-forming ability criterion for bulk metallic glasses. Acta Mater. 50, 3501 (2002).Google Scholar
18Yuan, G. and Inoue, A.: The effect of Ni substitution on the glass-forming ability and mechanical properties of Mg–Cu–Gd metallic glass alloys. J. Alloys Compd. 387, 134 (2005).CrossRefGoogle Scholar
19Xu, Y.K., Ma, H., Xu, J. and Ma, E.: Mg-based bulk metallic glass composites with plasticity and gigapascal strength. Acta Mater. 53, 1857 (2005).CrossRefGoogle Scholar
20Zhang, T. and Inoue, A.: Thermal stability and mechanical properties of bulk glassy Cu–Zr–Ti–(Nb, Ta) alloys. Mater. Trans. 43, 1367 (2002).Google Scholar
21Park, E.S., Kim, D.H., Ohkubo, T. and Hono, K.: Enhancement of glass forming ability and plasticity by addition of Nb in Cu–Ti–Zr–Ni–Si bulk metallic glasses. J. Non-Cryst. Solids 351, 1232 (2005).CrossRefGoogle Scholar
22Sung, D.S., Kwon, O.J., Fleury, E., Kim, K.B., Lee, J.C., Kim, D.H. and Kim, Y.C.: Enhancement of the glass forming ability of Cu-Zr-Al alloys by Ag addition. Met. Mater. Int. 10, 575 (2004).CrossRefGoogle Scholar
23Xing, L-Q., Li, Y., Ramesh, K.T., Li, J. and Hufnagel, T.C.: Enhanced plastic strain in Zr-based bulk amorphous alloys. Phys. Rev. 64, 180201 (R) (2001).Google Scholar
24Lee, M.H., Lee, J.Y., Bae, D.H., Kim, W.T., Sordelet, D.J. and Kim, D.H.: A development of Ni-based alloys with enhanced plasticity. Intermetallics 12, 1133 (2004).Google Scholar
25Wright, W.J., Schwarz, R.B. and Nix, W.D.: Localized heating during serrated plastic flow in bulk metallic glasses. Mater. Sci. Eng. A 319–321, 229 (2001).Google Scholar