Publications

2024

L. Owen, N. Jones, H. Stone, and H. Playford, “Separation of static and dynamic displacements in the crmnfeconi high entropy alloy,” Acta Materialia, vol. 262, p. 119164, 2024. [Online]. Available: https://www.sciencedirect.com/science/article/pii/S1359645423004950

2023

L. Chechik, A. D. Goodall, K. A. Christofidou, and I. Todd, “Controlling grain structure in metallic additive manufacturing using a versatile, inex- pensive process control system,” Scientific Reports, vol. 13, no. 1, p. 10003, 2023.

L. Chechik, K. A. Christofidou, L. Farquhar, M. Tse, G. Baxter, and I. Todd, “Tools for the assessment of the laser printability of nickel su- peralloys,” METALLURGICAL AND MATERIALS TRANSACTIONS A- PHYSICAL METALLURGY AND MATERIALS SCIENCE, vol. 54, no. 6, pp. 2505–2505, 2023.

S. Llewelyn, L. Owen, H. Playford, N. Jones, D. Dye, M. Hardy, and H. Stone, “Influence of ni:co ratio and temperature on the lattice misfit of γ-γ’ ni-co-al-ti-cr alloys,” Journal of Alloys and Compounds, vol. 937, p. 168253, 2023. [Online]. Available: https: //www.sciencedirect.com/science/article/pii/S0925838822046448

J. Markanday, M. Carpenter, R. Thompson, N. Jones, K. Christofidou, S. Fairclough, C. Heason, and H. Stone, “Effect of nbc inoculants on the elastic properties and microstructure of additively manufactured in718,” Materialia, vol. 27, p. 101701, 2023. [Online]. Available: https://www.sciencedirect.com/science/article/pii/S2589152923000297

J. Miller, J. Markanday, S. Fairclough, G. Wise, C. Rae, L. Owen, D. Stapleton, N. D’Souza, P. Bagot, and H. Stone, “Gamma prime precipitation in as-deposited ni-based superalloy in713lc,” Scripta Materialia, vol. 239, p. 115775, 2024. [Online]. Available: https: //www.sciencedirect.com/science/article/pii/S1359646223004967

J. Moffat, K. Christofidou, M. E. Pek, N. Jones, P. Jackson, and H. Stone, “Surveying the effects of ageing a high c-containing co-based superalloy from the as-cast and solution heat treated conditions,” 2023. [Online]. Available: https://www.repository.cam.ac.uk/handle/1810/362213

B. Ohl, L. Owen, H. Stone, and D. C. Dunand, “Microstructure and mechanical properties of l12-strengthened co–ni–fe-based superalloys,” Materials Science and Engineering: A, vol. 884, p. 145276, 2023. [Online]. Available: https://www.sciencedirect.com/science/article/pii/ S0921509323007001

A. K. Sfikas, S. Kamnis, M. C. H. Tse, K. A. Christofidou, S. Gonzalez, A. E. Karantzalis, and E. Georgatis, “Microstructural evaluation of thermal-sprayed cocrfemnni0.8v high-entropy alloy coatings,” Coatings, vol. 13, no. 6, 2023. [Online]. Available: https://www.mdpi.com/ 2079-6412/13/6/1004

A. Summer, H. Y. Playford, L. R. Owen, J. M. Fisher, A. Kolpin, D. Thompsett, and R. I. Walton, “Order and disorder in cerium-rich ceria- zirconia solid solutions revealed from reverse Monte Carlo analysis of neu- tron and x-ray total scattering,” APL Materials, vol. 11, no. 3, p. 031113, Mar. 2023.

J.F.S. Markanday, K.A. Christofidou, J.R. Miller, E.R. Livera, N.G. Jones, E.J. Pickering, W. Li, Y. Pardhi, C.N. Jones and H.J. Stone, "The Microstructural Evolution of CM247LC Manufactured Through Laser Powder Bed Fusion", Metallurgical and Materials Transactions A (2023), DOI: 10.1007/s11661-022-06939-0

Lova Chechik, Katerina A. Christofidou, Lucy Farquhar, Martin Tse, Gavin Baxter, Iain Todd, "Tools for the Assessment of the Laser Printability of Nickel Superalloys", Metallurgical and Materials Transactions A (2023), DOI: 10.1007/s11661-023-07029-5

2022

F. Markanday, G. Conduit, B. Conduit, J. Pürstl, K.A. Christofidou , L. Chechik , G. Baxter, C. Heason, H. J. Stone, "Design of a Ni-based superalloy for laser repair applications using probabilistic neural network identification", Data Centric Engineering (2022), 3, e30

M.E. Bloomfield, K.A. Christofidou, P.M. Mignanelli, A-P.M. Reponen, H.J. Stone, N.G. Jones, "Phase stability of the AlxCrFeCoNi alloy system", JALCOM (2022), 926, 166734.

N. G. Jones and L. R. Owen, “Lattice distortion in high-entropy alloys,” 2022.

2021

S.M.I. Birch, J. Bates, M. Bell, K.A. Christofidou, C.L. Corkhill, V. Hearnden, E. Alonso Lopez, L.C. Mason, A. Southworth, J.S. Dean, “Bending bad—testing caramel wafer bars (#TestATunnocks)” Phys. Educ. (2021) 56055002.

M.E. Bloomfield, K. A. Christofidou, F. Monni, Q. Yang, M. Hang and N.G. Jones, "The influence of Fe variations on the phase stability of CrMnFexCoNi alloys following long-duration exposures at intermediate temperatures" Intermetallics 131 (2021) 107108

T.E. Whitfield, E.J. Pickering, L.R. Owen, O.N. Senkov, D.B. Miracle, H.J. Stone, N.G. Jones, “An assessment of the thermal stability of refractory high entropy superalloys (at.%)”, Journal of Alloys and Compounds, DOI: 10.1016/j.jallcom.2020.157583

2020

M. C. Hardy, C. Argyrakis, H S. Kitaguchi, A. S. Wilson, R. C. Buckingham, K. Severs, S. Yu, C. Jackson, E. J. Pickering, S. C. H. Llewelyn, C. Papadaki, K. A. Christofidou, P.M. Mignanelli, A. Evans, D. J. Child, H. Y. Li, N. G. Jones, C.M. F. Rae, P. Bowen and H. J. Stone "Developing alloy composition for future high temperature disk rotors" in Superalloys 2020 pg. 19-30.

C. G. Ferguson, K. A. Christofidou, E. M. Hildyard, A. S. Wilson, N. G. Jones and H. J. Stone "On the continuous and discontinuous precipitation of the L12 phase in Cu-Ni-Al alloys", Materialia 13 (2020) 100855

K. A. Christofidou, H. T. Pang, W. Li, Y. Pardhi, C. N. Jones, N. G. Jones, and H. J. Stone "Microstructural control and optimisation of Haynes 282 manufactured through laser powder bed fusion." in Superalloys 2020, pg. 1014-1023

K.A. Christofidou, H.J. Stone, N.G. Jones, Y. Pardhi and C.N. Jones "Powder alloy composition, gas turbine engine component and method for manufacture of the same” Patent Application US2020/0131604 A1 & EP3643800 A1

J.P. Moffat, T.E. Whitfield, K.A. Christofidou, E.J Pirckering, N.G. Jones & H.J. Stone “The effect of heat treatment on the oxidation resistance of Cobalt-based superalloys” Metals 10 (2020) 248

M. C. Hardy, K. A. Christofidou, P. M. Mignanelli, H. J. Stone, N. G. Jones and C. Argyrakis “Nickel-Base Superalloy” Patent Applications: US 2019/0360078 A1 & EP 3 572 541 A1

K.A. Christofidou, M. C. Hardy, P. M. Mignanelli, H. J. Stone, N. G. Jones & C. Argyrakis “Nickel-Base Superalloy” Patent Applications: US 2019/0360077 A1 & EP 3 572540 A1

T.E. Whitfield, E.J. Pickering, K.A. Christofidou, C.N. Jones, H.J. Stone & N.G. Jones “Elucidating the microstructural development of refractory metal high entropy superalloys via the Ti-Ta-Zr constituent system” JALCOM. 818 (2020) 152935

E.M. Hildyard, L.D. Connor, L.R. Owen, D. Rugg, N. Martin, H.J. Stone and N.G. Jones, “The influence of microstructural condition on the β→α'' transformation in Ti-24Nb (at.%)”, Acta Materialia, 199(2020), 129-140

T.E. Whitfield, E.J. Pickering, L.R. Owen, C.N. Jones, H.J. Stone, N.G. Jones, “The effect of Al on the formation and stability of a bcc-B2 microstructure in a refractory metal high entropy superalloy system”, Materialia (2020), 13, 100858.

L.R. Owen and N.G. Jones, Quantifying local distortions in alloys, Scripta Materialia, 187 (2020), 428-433

2019

N.G. Jones and L.R. Owen “Lattice distortions in high-entropy alloys”, Encyclopaedia of Materials: Metals and Alloys, DOI: 10.1016/B978-0-12-803581-8.12124-1

A.J. Goodfellow, L.R. Owen, K.A. Christofidou, J. Kelleher, M.C. Hardy and H.J. Stone “The Effect of Temperature and Mo Content on the Lattice Misfit of Model Ni-Based Superalloys”, Metals (2019), 9(6), 700

A.S. Wilson, K.A. Christofidou, A. Evans, M.C. Hardy, H.J. Stone, Comparison methods for the quantification of topologically close-packed phases in Ni-based superalloys, Metall Mater Trans A. 50 (2019) 5925–5934

M. C. Hardy, H. J. Stone, N. G. Jones, S. Neumeier and K. A. Christofidou, “A nickel alloy,” Patent Granted: EP20150199133 & US 10138534 B2

M.E. Bloomfield, K.A. Christofidou, N.G. Jones, Effect of Co on the phase stability of CrMnFeCoxNi high entropy alloys following long-duration exposures at intermediate temperatures, Intermetallics. 114 (2019) 106582.

E.J. Pickering, K.A. Christofidou, H.J. Stone, N.G. Jones, On the design and feasibility of tantalum-base superalloys, JALCOM. 804 (2019) 314–321.

K.A. Christofidou, T.P. McAuliffe, P.M. Mignanelli, H.J. Stone, N.G. Jones, On the prediction and the formation of the sigma phase in CrMnCoFeNix high entropy alloys, JALCOM. 770 (2019) 285–293.

L.R. Owen, H.J. Stone and H.Y. Playford “The assessment of local lattice strains in alloys using total scattering”, Acta Materialia, 170 (2019), 38-4.

2018

K.A. Christofidou, M.C. Hardy, H.-Y. Li, C. Argyrakis, H. Kitaguchi, N.G. Jones, et al., On the Effect of Nb on the Microstructure and Properties of Next Generation Polycrystalline Powder Metallurgy Ni-Based Superalloys, Metall Mater Trans A. 49 (2018) 3896–3907.

L.D. Connor, P.M. Mignanelli, K.A. Christofidou, N.G. Jones, A.R. Baker, C.C. Tang, et al., In situ study of sigma phase formation in Cr-Co-Ni ternary alloys at 800degreesC using the long duration experiment facility at Diamond Light Source, J. Synchrotron Rad (2018). 25, 1371-1378.

K.A. Christofidou, E.J. Pickering, P. Orsatti, P.M. Mignanelli, T.J.A. Slater, H.J. Stone, et al., On the influence of Mn on the phase stability of the CrMnxFeCoNi high entropy alloys, Intermetallics. 92 (2018) 84–92.

A.J. Goodfellow, E.I. Galindo-Nava, K.A. Christofidou, N.G. Jones, C.D. Boyer, T.L. Martin, et al., The effect of phase chemistry on the extent of strengthening mechanisms in model Ni-Cr-Al-Ti-Mo based superalloys, Acta Mater. 153 (2018) 290–302.

A.J. Goodfellow, E.I. Galindo-Nava, K.A. Christofidou, N.G. Jones, T. Martin, P.A.J. Bagot, et al., Gamma Prime Precipitate Evolution During Aging of a Model Nickel-Based Superalloy, Metall Mater Trans A. (2018) 1–11.

L.R. Owen and N.G. Jones “Lattice distortions in high-entropy alloys”, Journal of Materials Research, 33 (2018) 2954-2969.

2017

L.R. Owen, H.Y. Playford, H.J. Stone and M.G. Tucker “Analysis of Short-Range Order in Cu3Au using X-ray Pair Distribution Functions”, Acta Materialia, 125 (2017) 15-26.

L.R. Owen, E.J. Pickering, H.Y. Playford, H.J. Stone, M.G. Tucker and N.G. Jones “An assessment of the lattice strain in the CrMnFeCoNi High-Entropy Alloy”, Acta Materialia, 122 (2017) 11-18.

S.C.H. Llewelyn, K.A. Christofidou, V.J. Araullo-Peters, N.G. Jones, M.C. Hardy, E.A. Marquis, et al., The effect of Ni:Co ratio on the elemental phase partitioning in γ-γ′ Ni-Co-Al-Ti-Cr alloys, Acta Mater. 131 (2017) 296–304

K.A. Christofidou, K.J. Robinson, P.M. Mignanelli, E.J. Pickering, N.G. Jones, H.J. Stone, The effect of heat treatment on precipitation in the Cu-Ni-Al alloy Hiduron® 130, Mater Sci Eng A. 692 (2017) 192–198.

2016

N.G. Jones, R. Izzo, P.M. Mignanelli, K.A. Christofidou, H.J. Stone, Phase evolution in an Al0.5CrFeCoNiCu High Entropy Alloy, Intermetallics. 71 (2016) 43–50.

K.A. Christofidou, N.G. Jones, E.J. Pickering, R. Flacau, M.C. Hardy, H.J. Stone, The microstructure and hardness of Ni- Co-Al-Ti-Cr quinary alloys, JALCOM. 688 (2016) 542–552.

L.R. Owen, H.Y. Playford, H.J. Stone, M.G. Tucker, “A New Approach to the Analysis of Short-range Order in Alloys using total scattering”, Acta Materialia, 115 (2016) 155-166.

2015

N.G. Jones, K.A. Christofidou, H.J. Stone, Rapid precipitation in an Al 0.5CrFeCoNiCu high entropy alloy, Mater Sci Technol. 31 (2015) 1171–1177.

K.A. Christofidou, N.G. Jones, M.C. Hardy, H.J. Stone, The Oxidation Behaviour of Alloys Based on the Ni–Co–Al–Ti-Cr System, Oxid Met. 85 (2015) 443–458.

2014

H.Y. Playford, L.R. Owen, I. Levin, M.G. Tucker. “New insights into complex materials using Reverse Monte Carlo modeling.” Annual Reviews in Materials Research, 44 (2014), 429-449.

N.G. Jones, K.A. Christofidou, P.M. Mignanelli, J.P. Minshull, M.C. Hardy, H.J. Stone, Influence of Elevated Co and Ti Levels on Polycrystalline Powder Processed Ni-base Superalloy, Mater Sci Technol. 30 (2014) 1853–1861