Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-26T12:59:21.797Z Has data issue: false hasContentIssue false
  • English
  • Français

A Study of Quaternary Cr-Cr2Ta Alloys - Microstructure and Mechanical Properties

Published online by Cambridge University Press:  11 February 2013

Varun Choda ,
Ayan Bhowmik ,
Ian M. Edmonds ,
C. Neil Jones  and
Howard J. Stone
Varun Choda
Affiliation:
Department of Materials Science and Metallurgy, Pembroke Street, University of Cambridge, Cambridge CB2 3QZ, United Kingdom
Ayan Bhowmik
Affiliation:
Department of Materials Science and Metallurgy, Pembroke Street, University of Cambridge, Cambridge CB2 3QZ, United Kingdom
Ian M. Edmonds
Affiliation:
Rolls-Royce plc, P. O. Box 31, Derby DE24 8BJ, United Kingdom
C. Neil Jones
Affiliation:
Rolls-Royce plc, P. O. Box 31, Derby DE24 8BJ, United Kingdom
Howard J. Stone
Affiliation:
Department of Materials Science and Metallurgy, Pembroke Street, University of Cambridge, Cambridge CB2 3QZ, United Kingdom
Get access

Abstract

Six alloys based on Cr-10Ta-7Si (by at.%) with quaternary additions of 0.5Ag, 5Ti, 1Hf, 3Mo, 3Al, or 3Re (by at.%) substituted for Cr were produced by vacuum arc-melting. The microstructures of the alloys were found to predominantly consist of a eutectic mixture of an A2 Cr-based solid solution and a C14 Cr2Ta Laves phase along with proeutectic Cr2Ta dendrites. Microstructural macro- and micro-scale inhomogeneities were observed in all alloy ingots, which were attributed to the non-equilibrium arc-melting process. The measured lattice parameters of the constituent phases and the elemental partitioning behaviour between the phases have been correlated with the respective covalent atomic radii. The bulk hardnesses of the alloys, along with the hardness of individual phases, have also been reported.

Keywords

Crmicrostructurehardness
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1516: Symposium JJ – Intermetallic-Based Alloys—Science, Technology and Applications , 2013 , pp. 275 - 281
Copyright
Copyright © Materials Research Society 2013 

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

Kumar, K.S., Liu, C.T., Acta Metallurgica 45 (1997) 3671–3686.Google Scholar
Brady, M.P., Liu, C.T., Zhu, J.H., Tortorelli, P.F., Walker, L.R., Scripta Materialia 52 (2005) 815–819.10.1016/j.scriptamat.2005.01.016CrossRefGoogle Scholar
Gu, Y.F., Harada, H., Ro, Y., Journal of Metals, 56 (2004) 28–33.Google Scholar
Klopp, W.D., Journal of the Less-Common Metals, 42 (1975) 261–278.10.1016/0022-5088(75)90046-6CrossRefGoogle Scholar
Bhowmik, A., Stone, H.J., Metallurgical and Materials Transactions A, 43 (2012) 3283–3292.10.1007/s11661-012-1140-6CrossRefGoogle Scholar
Brady, M.P., Zhu, J.H., Liu, C.T., Tortorelli, P.F., Walker, L.R., Intermetallics, 8 (2000) 1111–1118.10.1016/S0966-9795(00)00046-7CrossRefGoogle Scholar
Takasugi, T., Hanada, S., Yoshida, M., Materials Science & Engineering A, 192/193 (1995) 805–810.CrossRefGoogle Scholar
Takasugi, T., Kumar, K.S., Liu, C.T., Lee, E.H., Materials Science & Engineering A, 260 (1999) 108–123.10.1016/S0921-5093(98)00981-2CrossRefGoogle Scholar
Takeyama, M., Liu, C.T., Materials Science & Engineering A, 132 (1991) 61–66.10.1016/0921-5093(91)90361-PCrossRefGoogle Scholar
Laves, F., Witte, H., Metall-Wirtschaft,-Wissenschaft und -Technik, 14 (1935) 645–653.Google Scholar
Bhowmik, A., Jones, C.N., Edmonds, I.M., Stone, H.J., Journal of Alloys and Compounds, 530 (2012) 169–177.CrossRefGoogle Scholar
Bhowmik, A., Knowles, K.M., Stone, H.J., Intermetallics, 31 (2012) 34–47.10.1016/j.intermet.2012.06.001CrossRefGoogle Scholar
Briant, C.L., Kumar, K.S., Rosenberg, N., Tomioka, H., International Journal of Refractory Metals and Hard Materials, 18 (2000) 9–11.10.1016/S0263-4368(99)00031-1CrossRefGoogle Scholar
Gu, Y.F., Ro, Y., Harada, H., Metallurgical and Materials Transactions A, 35 (2004) 3329–3331.10.1007/s11661-006-0237-1CrossRefGoogle Scholar
Kumar, K.S., Hazzledine, P.M., Intermetallics, 12 (2004) 763–770.10.1016/j.intermet.2004.02.017CrossRefGoogle Scholar
Cordero, B., Gomez, V., Platero-Prats, A.E., Reves, M., Echeverria, J., Cremades, E., Barragan, F., Alvarez, S., Dalton Trans., issue 21 (2008) 2832–2838.CrossRefGoogle Scholar
Bhowmik, A., Pang, H.T., Neumeier, S., Stone, H.J., Edmonds, I., MRS Proceedings, 1295 (2011) 1–6.10.1557/opl.2011.38CrossRefGoogle Scholar
Bhowmik, A., Stone, H.J., Journal of Materials Science, accepted (2013).Google Scholar
Mittal, R.C., Si, S.K., Gupta, K.P., Journal of the Less Common Metals, 60 (1978) 75–82.10.1016/0022-5088(78)90091-7CrossRefGoogle Scholar