On the rate of microstructural degradation of Al-Ta-Ti-Zr refractory metal high entropy superalloys

Autor: Whitfield, TE, Church, NL, Stone, HJ, Jones, NG

Publikováno v: Journal of Alloys and Compounds. 939:168369

Refractory metal high entropy superalloys (RSA) are being developed for high temperature structural applications. However, recently the microstructures of several RSA have been shown to be unstable, precipitating potentially deleterious intermetallic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8015ec14cafe9aca5b61e511d48dd9cd
https://doi.org/10.1016/j.jallcom.2022.168369

Observation of a refractory metal matrix containing Zr-Ti-rich precipitates in a Mo0.5NbTa0.5TiZr high entropy alloy

Autor: Whitfield, TE, Pickering, EJ, Talbot, CE, Jones, CN, Stone, HJ, Jones, NG

Refractory metal high entropy superalloys (RMHES) offer potentially superior strength at elevated temperatures and lower densities than Ni-based superalloys. However, concerns exist over their ductility as their microstructures comprise fine distribu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______109::e1e911447741f74d389b3755cbe27cda
https://www.repository.cam.ac.uk/handle/1810/301243

The effect of heat treatment on the oxidation resistance of cobalt-based superalloys

Autor: Moffat, JP, Whitfield, TE, Christofidou, KA, Pickering, EJ, Jones, NG, Stone, HJ

Degradation of the mechanical integrity of cobalt-based superalloys can occur as the carbide network is progressively oxidised during high temperature service. In this study, a heat-treatment aimed at redistributing the carbides was tested on two sim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::51eaae2b1d9cba867fed1ab7e8ff244d

Handshakes and Hugs: A Study of the Approaches Used by Local Social Service Agencies to Partner with Faith-Based Organizations in Virginia

Autor: Whitfield, Telly Chagall

"If the [White House faith-based] initiative was going to have an impact on the local community, you had to begin to think of the initiative in local terms." – Brad Yarbrough, Director of the Oklahoma Office of Faith and Community Initiatives Chari

Externí odkaz: http://hdl.handle.net/10919/29235
http://scholar.lib.vt.edu/theses/available/etd-10102008-053838/

Microstructural Degradation of the AlMo 0.5 NbTa 0.5 TiZr Refractory Metal High-Entropy Superalloy at Elevated Temperatures.

Autor: Whitfield TE; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, UK., Stone HJ; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, UK., Jones CN; Rolls-Royce plc, Derby DE24 8BJ, UK., Jones NG; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, UK.

Publikováno v: Entropy (Basel, Switzerland) [Entropy (Basel)] 2021 Jan 08; Vol. 23 (1). Date of Electronic Publication: 2021 Jan 08.