Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-25T22:26:34.907Z Has data issue: false hasContentIssue false
  • English
  • Français

Co-based ternary bulk metallic glasses with ultrahigh strength and plasticity

Published online by Cambridge University Press:  13 July 2011

Jianfeng Wang ,
Ran Li ,
Nengbin Hua  and
Tao Zhang
Jianfeng Wang
Affiliation:
Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Material Science and Engineering, Beihang University, Beijing 100191, People’s Republic of China
Ran Li*
Affiliation:
Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Material Science and Engineering, Beihang University, Beijing 100191, People’s Republic of China
Nengbin Hua
Affiliation:
Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Material Science and Engineering, Beihang University, Beijing 100191, People’s Republic of China
Tao Zhang*
Affiliation:
Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Material Science and Engineering, Beihang University, Beijing 100191, People’s Republic of China
*
a)Address all correspondence to these authors. e-mail: [email protected]
b)e-mail: [email protected]
Get access

Abstract

A family of ultrahigh strength Co-based bulk metallic glasses (BMGs) with critical diameters up to 2 mm is synthesized in Co65–xTaxB35 (at.%, x = 5–10) alloys by copper mold casting. The improved glass-forming ability associated with near eutectic compositions is attributed to the appropriate addition of Ta. The glassy alloys exhibit high glass transition temperature of 930–975 K, ultrahigh compressive strength of 5.6–6.0 GPa, high specific strength of 639–654 N·m/g, Vickers hardness of 15–16 GPa, and distinct plastic strain of 0.5–1.5%. The strength and the specific strength are the highest values reported for bulk metallic materials known so far. Several universal criteria correlated with the thermal properties, elastic constants, and mechanical properties were validated in the Co-based BMG system. These Co–Ta–B BMGs combining with superior mechanical properties, high thermal stability, and simple elemental composition are significant for scientific research as modeling materials and industrial application as advanced structural materials.

Keywords

CoElastic propertiesAmorphous
Type
Articles
Information
Journal of Materials Research , Volume 26 , Issue 16 , 28 August 2011 , pp. 2072 - 2079
Copyright
Copyright © Materials Research Society 2011

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

1.Johnson, W.L.: Bulk glass-forming metallic alloys: Science and technology. MRS Bull. 24, 42 (1999).CrossRefGoogle Scholar
2.Inoue, A.: Stabilization of metallic supercooled liquid and bulk amorphous alloys. Acta Mater. 48, 279 (2000).CrossRefGoogle Scholar
3.Ashby, M.F. and Greer, A.L.: Metallic glasses as structure materials. Scr. Mater. 54, 321 (2006).CrossRefGoogle Scholar
4.Johnson, W.L.: Bulk amorphous metal: An emerging engineering material. JOM 54, 40 (2002).CrossRefGoogle Scholar
5.Ionue, A., Shen, B.L., and Chang, C.T.: Fe- and Co-based bulk glassy alloys with ultrahigh strength of over 4000 MPa. Intermetallics 14, 936 (2006).CrossRefGoogle Scholar
6.Lewandowski, J.J. and Lowhaphandu, P.: Effects of hydrostatic pressure on the flow and fracture of a bulk amorphous metal. Philos. Mag. A 82, 3427 (2002).CrossRefGoogle Scholar
7.Wang, W.H.: Elastic moduli and behaviors of metallic glasses. J. Non-Cryst. Solids 351, 1481 (2005).CrossRefGoogle Scholar
8.Johnson, W.L. and Samwer, K.: A universal criterion for plastic yielding of metallic glasses with a (T/Tg)2/3 temperature dependence. Phys. Rev. Lett. 95, 195501 (2005).CrossRefGoogle Scholar
9.Wang, W.H.: Correlations between elastic moduli and properties in bulk metallic glasses. J. Appl. Phys. 99, 093506 (2006).CrossRefGoogle Scholar
10.Zhang, Y. and Greer, A.L.: Correlations for predicting plasticity or brittleness of metallic glasses. J. Alloy. Comp. 434–435, 2 (2007).CrossRefGoogle Scholar
11.Sheng, H.W., Luo, W.K., Alamgir, F.M., Bai, J.M., and Ma, E.: Atomic packing and short-to-medium-range order in metallic glasses. Nature 439, 419 (2006).CrossRefGoogle ScholarPubMed
12.Gu, X.J., Poon, S.J., Shiflet, G.J., and Widom, M.: Ductility improvement of amorphous steels: Roles of shear modulus and electronic structure. Acta Mater. 56, 88 (2008).CrossRefGoogle Scholar
13.Ionue, A., Shen, B.L., and Chang, C.T.: Super-high strength of over 4000 MPa for Fe-based bulk glassy alloys in [(Fe1-xCox)0.75B0.2Si0.05]96Nb4 system. Acta Mater. 85, 4093 (2004).CrossRefGoogle Scholar
14.Inoue, A., Shen, B.L., Koshiba, H., Kato, H., and Yavari, A.R.: Cobalt-based bulk glassy alloy with ultrahigh strength and soft magnetic properties. Nat. Mater. 2, 661 (2003).CrossRefGoogle ScholarPubMed
15.Inoue, A.: Slowly-cooled bulk amorphous alloys. Mater. Sci. Forum 179–181, 691 (1995).CrossRefGoogle Scholar
16.Inoue, A.: Bulk amorphous alloys with soft and hard magnetic properties. Mater. Sci. Eng., A 226–228, 691 (1997).Google Scholar
17.http://www.webelements.com.Google Scholar
18.Davies, H.A. and Lewis, B.G.: Generalized kinetic approach to metallic glass formation. Scr. Metall. 9, 1107 (1975).CrossRefGoogle Scholar
19.Cohen, M.H. and Turnbull, D.: Composition requirements for glass formation in metallic and ionic systems. Nature 189, 131 (1961).CrossRefGoogle Scholar
20.Klement, W., Willens, R.H., and Duwez, P.: Non-crystalline structure in solidified gold-silicon alloys. Nature 187, 869 (1960).CrossRefGoogle Scholar
21.Highmore, R.J. and Greer, A.L.: Eutectics and the formation of amorphous alloys. Nature 339, 363 (1989).CrossRefGoogle Scholar
22.Turnbull, D.: Under what conditions can a glass be formed? Contemp. Phys. 10, 473 (1969).CrossRefGoogle Scholar
23.Inoue, A., Zhang, T., and Masumoto, T.: Glass-forming ability of alloys. J. Non-Cryst. Solids 156–158, 473 (1993).CrossRefGoogle Scholar
24.Lu, Z.P. and Liu, C.T.: A new glass-forming ability criterion for bulk metallic glasses. Acta Mater. 50, 3501 (2002).CrossRefGoogle Scholar
25.Madge, S.V. and Greer, A.L.: Effect of Ag addition on the glass-forming ability and thermal stability of Mg-Cu-Y alloys. Mater. Sci. Eng., A 375–377, 759 (2004).CrossRefGoogle Scholar
26.Li, R., Pang, S.J., Ma, C.L., and Zhang, T.: Influence of similar atom substitution on glass formation in (La-Ce)-Al-Co bulk metallic glasses. Acta Mater. 55, 3719 (2007).CrossRefGoogle Scholar
27.Dai, 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
28.Li, H.X., Kim, K.B., and Yi, S.: Enhanced glass-forming ability of Fe-based bulk metallic glasses prepared using hot metal and commercial raw materials through the optimization of Mo content. Scr. Mater. 56, 1035 (2007).CrossRefGoogle Scholar
29.Ashby, M.F.: Materials Selection in Mechanical Design, 3rd ed. (Butterworth-Heinemann, Oxford, UK, 2005), p. 58.Google Scholar
30.Ohtsuki, M., Tamura, R., Takeuchi, S., Yoda, S., and Ohmura, T.: Hard metallic glass of tungsten-based alloy. Appl. Phys. Lett. 84, 4911 (2004).CrossRefGoogle Scholar
31.Inoue, A., Shen, B.L., Yavari, A.R., and Greer, A.L.: Mechanical properties of Fe-based bulk glassy alloys in Fe-Si-B-Nb and Fe-Ga-P-C-B-Si systems. J. Mater. Res. 18, 1487 (2003).CrossRefGoogle Scholar
32.Stoica, M., Eckert, J., Roth, S., Zhang, Z.F., Schultz, L., and Wang, W.H.: Mechanical behavior of Fe65.5Cr4Mo4Ga4P12C5B5.5 bulk metallic glass. Intermetallics 13, 764 (2005).CrossRefGoogle Scholar
33.Zhang, Z.F., Zhang, H., Shen, B.L., Inoue, A., and Eckert, J.: Shear fracture and fragmentation mechanisms of bulk metallic glasses. Philos. Mag. Lett. 86, 643 (2006).CrossRefGoogle Scholar
34.Fan, J.T., Zhang, Z.F., Mao, S.X., Shen, B.L., and Inoue, A.: Deformation and fracture behaviors of Co-based metallic glass land its composite with dendrites. Intermetallics 17, 445 (2009).CrossRefGoogle Scholar
35.Lewandowski, J.J., Wang, W.H., and Greer, A.L.: Intrinsic plasticity or britttleness of metallic glasses. Philos. Mag. Lett. 85, 77 (2005).CrossRefGoogle Scholar
36.Ionue, A. and Takeuchi, A.: Recent progress in bulk glassy alloys. Mater. Trans. 43, 1892 (2002).CrossRefGoogle Scholar
37.Liu, Y.H., Liu, C.T., Wang, W.H., Inoue, A., Sakurai, T., and Chen, M.W.: Thermodynamic origins of shear band formation and the universal scaling law of metallic glass strength. Phys. Rev. Lett. 103, 065504 (2009).CrossRefGoogle ScholarPubMed
38.Dyre, J.C., Olsen, N.B., and Chrisrensen, T.: Local elastic expansion model for viscous-flow activation energies of glass-forming molecular liquids. Phys. Rev. B 53, 2171 (1996).CrossRefGoogle ScholarPubMed
39.Egami, T., Poon, S.J., Zhang, Z., and Keppens, V.: Glass transition in metallic glasses: A microscopic model of topological fluctuations in the bonding network. Phys. Rev. B 76, 024203 (2007).CrossRefGoogle Scholar
40.Li, R., Stoica, M., Wang, G., and Park, J.M.: Glass formation, thermal properties, and elastic constants of La-Al-Co alloys. J. Mater. Res. 25, 1398 (2010).CrossRefGoogle Scholar
41.Whang, S.H., Polk, D.E., and Giessen, B.C.: The correlation between the Young's modules and microhardness in metallic glasses. Proceedings of the Fourth International Conference on Rapidly Quenched Metals, edited by Masumoto, T. and Suzuki, K. (Japan Institute of Metals, Tokyo, 1982), pp. 1365–1368.Google Scholar
42.Xu, D.H., Duan, G., Johnson, W.L., and Garland, C.: Formation and properties of new Ni-based amorphous alloys with critical casting thickness up to 5 mm. Acta Mater. 52, 3493 (2004).CrossRefGoogle Scholar
43.Gu, X.J., McDermott, A.G., and Poon, S.J.: Critical poisson’s ratio for plasticity in Fe-Mo-C-B-Ln bulk amorphous steel. Appl. Phys. Lett. 88, 211905 (2006).CrossRefGoogle Scholar