Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-14T06:57:14.644Z Has data issue: false hasContentIssue false
  • English
  • Français

Fe–Mn–Cr–Mo–(Y,Ln)–C–B (Ln = Lanthanides) bulk metallic glasses as formable amorphous steel alloys

Published online by Cambridge University Press:  01 October 2004

V. Ponnambalam ,
S. Joseph Poon  and
Gary J. Shiflet
V. Ponnambalam
Affiliation:
Department of Physics, University of Virginia, Charlottesville, Virginia 22904-4714
S. Joseph Poon*
Affiliation:
Department of Physics, University of Virginia, Charlottesville, Virginia 22904-4714
Gary J. Shiflet
Affiliation:
Department of Materials Science and Engineering, University of Virginia, Charlottesville, Virginia 22904-4745
*
a) Address all correspondence to this author. e-mail: sjp9x@virginia.edu
Get access

Abstract

The glass formability of high-manganese amorphous steel alloys reported earlier by us has been found to improve upon additions of yttrium and lanthanide elements, enabling the formation of bulk glassy samples with diameter thicknesses reaching 7 mm by casting. Based on extensive studies using different Ln additions and systematic measurements of alloy oxygen contents, the intrinsic roles of Y/Ln in attaining good glass formability in both the high-Mn alloys and previously reported high-Cr alloys are revealed. The yield strengths of the non-ferromagnetic glassy alloys obtained are estimated to be three times those of high-strength stainless steel alloys, and high elastic moduli in the range 150–200 GPa are measured. Furthermore, in the supercooled liquid regions, the glassy rods can be bent into various configurations by hand without fracturing. The observed plastic behavior together with the measured high mechanical strengths suggests that the present Fe–based bulk metallic glasses can potentially be developed as formable non-ferromagnetic amorphous steel alloys.

Keywords

CastingMetallic glassChemical composition
Type
Articles
Information
Journal of Materials Research , Volume 19 , Issue 10 , October 2004 , pp. 3046 - 3052
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

1Ponnambalam, V., Poon, S.J., Shiflet, G.J., Keppens, V.M., Taylor, R. and Petculescu, G.: Synthesis of iron-based bulk metallic glasses as nonferromagnetic amorphous steel alloys. Appl. Phys. Lett. 83, 1131 (2003).CrossRefGoogle Scholar
2Ponnambalam, V., Poon, S.J. and Shiflet, G.J.: Fe-based bulk metallic glasses with diameter thickness larger than one centimeter. J. Mater. Res. 19, 1320 (2004).CrossRefGoogle Scholar
3Inoue, A., Shen, B.L., Yavari, A.R. and Greer, A.L.: Mechanical properties of Fe-based bulk glassy alloys in Fe–B–Si–Nb and Fe–Ga–P–C–B–Si systems. J. Mater. Res. 18, 1487 (2003).CrossRefGoogle Scholar
4Egami, T.: Atomistic mechanism of bulk metallic glass formation. J. Non-Cryst. Solids 317, 30 (2003).CrossRefGoogle Scholar
5Lu, Z.P., Liu, C.T. and Porter, W.D.: Role of yttrium in glass formation of Fe-based bulk metallic glasses. Appl. Phys. Lett. 83, 2581 (2003).CrossRefGoogle Scholar
6Migliori, A., Sarrao, J.L., Visscher, W.M., Bell, T.M., Ming, L., Fisk, Z. and Leisure, R.G.: Resonant ultrasound spectroscopic techniques for measurement of the elastic moduli of solids. Physica B 183, 1 (1993).CrossRefGoogle Scholar
7Lu, Z.P. and Liu, C.T.: Glass formation criterion for various glass-forming systems. Phys. Rev. Lett. 91, 115505 (2003).CrossRefGoogle ScholarPubMed
8Villars, P., Prince, A. and Okamoto, H.: Handbook of Ternary Alloy Phase Diagrams (ASM International, Materials Park, OH, 1995).Google Scholar
9Widom, M., Nicholson, D.M., and Wang, Y., private communication (2003).Google Scholar
10Lu, Z.P., Liu, C.T., Thompson, J.R., and Porter, W.D.: Structural amorphous steels. Phys. Rev. Lett. 92, 245503 (2004).CrossRefGoogle ScholarPubMed