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Formation and properties of new Cu-based bulk glassy alloys with critical diameters up to 1.5 cm

Published online by Cambridge University Press:  31 January 2011

Wei Zhang ,
Qingsheng Zhang ,
Chunling Qin  and
Akihisa Inoue
Wei Zhang*
Affiliation:
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
Akihisa Inoue
Affiliation:
WPI, Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577 Japan
*
a) Address all correspondence to this author. e-mail: [email protected]
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Abstract

New Cu-based bulk glassy alloys (BGAs) with high glass-forming ability (GFA) were synthesized in a Cu-Zr-Al-Ag system. As the compositions of Cu-Zr-Al-Ag alloys with lower Ag and Al content shifted to the Cu-rich range, the supercooled liquid region, reduced glass transition temperature, and γ value increased, leading to the improvement of GFA. The best GFA is located around Cu47Zr45Al5Ag3, which is close to eutectic. Fully glassy samples with diameters up to 15 mm were fabricated by copper mold casting. These Cu-based BGAs exhibit excellent mechanical properties under compression. A large Young's modulus of 104–111 GPa, high fracture strength of 1905–1942 MPa, and distinct plastic strain of 0.002–0.011 were obtained. Additionally, the BGAs also show good corrosion resistance in 1 N H2SO4 solution.

Keywords

AmorphousCastingCu
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 9 , September 2009 , pp. 2935 - 2940
Copyright
Copyright © Materials Research Society 2009

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References

1Inoue, A.: High strength bulk amorphous alloys with low critical cooling rates. Mater. Trans., JIM 36, 866 (1995)CrossRefGoogle Scholar
2Johnson, W.L.: Fundamental aspects of bulk metallic glass formation in multicomponent alloys. Mater. Sci. Forum 225-227, 35 (1996)CrossRefGoogle Scholar
3Johnson, W.L.: Bulk glass-forming metallic alloys: Science and technology. MRS Bull. 24, 42 (1999)CrossRefGoogle Scholar
4Inoue, A.: Stabilization of metallic supercooled liquid and bulk amorphous alloys. Acta Mater. 48, 279 (2000)CrossRefGoogle Scholar
5Inoue, A., Zhang, W., Zhang, T. and Kurosaka, K.: High-strength Cu-based bulk glassy alloys in Cu–Zr–Ti and Cu–Hf–Ti ternary systems. Acta Mater. 49, 3645 (2001)CrossRefGoogle Scholar
6Inoue, A. and Zhang, W.: Formation, thermal stability and mechanical properties of Cu-Zr-Al bulk glassy alloys. Mater. Trans. 43, 2921 (2002)CrossRefGoogle Scholar
7Xu, D.H., Duan, G. and Johnson, W.L.: Unusual glass-forming ability of bulk amorphous alloys based on ordinary metal copper. Phys. Rev. Lett. 92, 245504 (2004)CrossRefGoogle ScholarPubMed
8Dai, C.L., Guo, H., Shen, Y., Li, Y., Ma, E. and Xu, J.: A new centimeter-diameter Cu-based bulk metallic glass. Scr. Mater. 54, 1403 (2006)CrossRefGoogle Scholar
9Jia, P., Guo, H., Li, Y., Xu, J. and Ma, E.: A new Cu-Hf-Al ternary bulk metallic glass with high glass forming ability and ductility. Scr. Mater. 54, 2165 (2006)CrossRefGoogle Scholar
10Zhang, Q.S., Zhang, W. and Inoue, A.: New Cu-Zr-based bulk metallic glasses with large diameters of up to 1.5 cm. Scr. Mater. 55, 711 (2006)CrossRefGoogle Scholar
11Zhang, G.Q., Jiang, Q.K., Chen, L.Y., Shao, M., Liu, J.F. and Jiang, J.Z.: Synthesis of centimeter-size Ag-doped Zr-Cu-Al metallic glasses with large plasticity. J. Alloys Compd. 424, 176 (2006)CrossRefGoogle Scholar
12Zhang, W., Zhang, Q.S., Qin, C. and Inoue, A.: Synthesis and properties of Cu-Zr-Ag -Al glassy alloys with high glass-forming ability. Mater. Sci. Eng., B 148, 92 (2008)Google Scholar
13Zhang, Q.S., Zhang, W. and Inoue, A.: Preparation of Cu36Zr48 Ag8Al8 bulk metallic glass with a diameter of 25 mm by copper mold casting. Mater. Trans. 48, 629 (2007)CrossRefGoogle Scholar
14Bruck, H.A., Christman, T., Rosakis, A.J. and Johnson, W.L.: Quasi-static constitutive behavior of Zr41.25Ti13.75Ni10Cu12.5Be22.5 bulk amorphous-alloys. Scr. Mater. 30, 429 (1994)CrossRefGoogle Scholar
15Kato, H. and Inoue, A.: Synthesis and mechanical properties of bulk amorphous Zr-Al-Ni-Cu alloys containing ZrC particles. Mater. Trans., JIM 38, 793 (1997)CrossRefGoogle Scholar
16Okazaki, K., Zhang, W. and Inoue, A.: Microstructure and mechanical properties of (Zr0.5Cu0.4Al0.1)100–xTax bulk metallic glass composites. Mater. Trans. 47, 2571 (2006)CrossRefGoogle Scholar
17Zhang, W. and Inoue, A.: High glass-forming ability and good mechanical properties of new bulk glassy alloys in Cu-Zr-Ag ternary system. J. Mater. Res. 21, 234 (2006)CrossRefGoogle Scholar
18Zhang, W., Zhang, Q. and Inoue, A.: Fabrication of Cu-Zr-Ag-Al glassy alloy samples with a diameter of 20 mm by water quenching. J. Mater. Res. 23, 1452 (2008)CrossRefGoogle Scholar
19Yokoyama, Y., Inoue, H., Fukaura, K. and Inoue, A.: Relationship between the liquidus surface and structures of Zr-Cu-Al bulk amorphous alloys. Mater. Trans. 43, 575 (2002)CrossRefGoogle Scholar
20Turnbull, D.: Under what conditions can a glass be formed. Contemp. Phys. 10, 473 (1969)CrossRefGoogle Scholar
21Lu, Z.P. and Liu, C.T.: A new glass-forming ability criterion for bulk metallic glasses. Acta Mater. 50, 3501 (2002)CrossRefGoogle Scholar
22Dai, C.L., Guo, H., Li, Y. and Xu, J.: A new composition zone of bulk metallic glass formation in the Cu–Zr–Ti ternary system and its correlation with the eutectic reaction. J. Non-Cryst. Solids 354, 3659 (2008)CrossRefGoogle Scholar
23Bala, H. and Szymura, S.: Acid corrosion of amorphous and crystalline Cu-Zr alloys. Appl. Surf. Sci. 35, 41 (1988)CrossRefGoogle Scholar
24Qin, C., Zhang, W., Zhang, Q.S., Asami, K. and Inoue, A.: Chemical characteristics of the passive surface films formed on newly developed Cu-Zr-Ag-Al bulk metallic glasses. J. Mater. Res. 23, 2091 (2008)CrossRefGoogle Scholar