Effect of Ta Solute Concentration on the Microstructural Evolution in Immiscible Cu-Ta Alloys

B. C. Hornbuckle, T. Rojhirunsakool, M. Rajagopalan, T. Alam, G. P. Purja Pun, R. Banerjee, Kiran Solanki, Y. Mishin, L. J. Kecskes, K. A. Darling

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The immiscible Cu-Ta system has garnered recent interest due to observations of high strength and thermal stability attributed to the formation of Ta-enriched particles. This work investigated a metastable Cu-1 at.% Ta solid solution produced via mechanical alloying followed by subsequent consolidation into a bulk specimen using equal channel angular extrusion at 973 K (700°C). Microstructural characterization revealed a decreased number density of Ta clusters, but with an equivalent particle size compared to a previously studied Cu-10 at.% Ta alloy. Molecular dynamic stimulations were performed to understand the thermal evolution of the Ta clusters. The cluster size distributions generated from the simulations were in good agreement with the experimental microstructure.

Original languageEnglish (US)
Pages (from-to)2802-2809
Number of pages8
JournalJOM
Volume67
Issue number12
DOIs
StatePublished - Dec 1 2015

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Microstructural evolution
Mechanical alloying
Consolidation
Extrusion
Molecular dynamics
Solid solutions
Thermodynamic stability
Particle size
Microstructure
Hot Temperature

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

Cite this

Hornbuckle, B. C., Rojhirunsakool, T., Rajagopalan, M., Alam, T., Purja Pun, G. P., Banerjee, R., ... Darling, K. A. (2015). Effect of Ta Solute Concentration on the Microstructural Evolution in Immiscible Cu-Ta Alloys. JOM, 67(12), 2802-2809. https://doi.org/10.1007/s11837-015-1643-x

Effect of Ta Solute Concentration on the Microstructural Evolution in Immiscible Cu-Ta Alloys. / Hornbuckle, B. C.; Rojhirunsakool, T.; Rajagopalan, M.; Alam, T.; Purja Pun, G. P.; Banerjee, R.; Solanki, Kiran; Mishin, Y.; Kecskes, L. J.; Darling, K. A.

In: JOM, Vol. 67, No. 12, 01.12.2015, p. 2802-2809.

Research output: Contribution to journalArticle

Hornbuckle, BC, Rojhirunsakool, T, Rajagopalan, M, Alam, T, Purja Pun, GP, Banerjee, R, Solanki, K, Mishin, Y, Kecskes, LJ & Darling, KA 2015, 'Effect of Ta Solute Concentration on the Microstructural Evolution in Immiscible Cu-Ta Alloys', JOM, vol. 67, no. 12, pp. 2802-2809. https://doi.org/10.1007/s11837-015-1643-x
Hornbuckle BC, Rojhirunsakool T, Rajagopalan M, Alam T, Purja Pun GP, Banerjee R et al. Effect of Ta Solute Concentration on the Microstructural Evolution in Immiscible Cu-Ta Alloys. JOM. 2015 Dec 1;67(12):2802-2809. https://doi.org/10.1007/s11837-015-1643-x
Hornbuckle, B. C. ; Rojhirunsakool, T. ; Rajagopalan, M. ; Alam, T. ; Purja Pun, G. P. ; Banerjee, R. ; Solanki, Kiran ; Mishin, Y. ; Kecskes, L. J. ; Darling, K. A. / Effect of Ta Solute Concentration on the Microstructural Evolution in Immiscible Cu-Ta Alloys. In: JOM. 2015 ; Vol. 67, No. 12. pp. 2802-2809.
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