Publications

2024

J. F. S. Markanday, K. A. Christofidou et al., ‘The Relationship Between Strain-Age Cracking and the Evolution of γ′ in Laser Powder-Bed-Fusion Processed Ni-Based Superalloys’, in Superalloys 2024, J. Cormier, I. Edmonds, S. Forsik, P. Kontis, C. O’Connell, T. Smith, A. Suzuki, S. Tin, and J. Zhang, Eds., Cham: Springer Nature Switzerland, 2024, pp. 822–835. doi: 10.1007/978-3-031-63937-1_77.

K. A. Christofidou et al., ‘Eutectic Superalloys for Laser Powder Bed Fusion’, in Superalloys 2024, J. Cormier, I. Edmonds, S. Forsik, P. Kontis, C. O’Connell, T. Smith, A. Suzuki, S. Tin, and J. Zhang, Eds., in The Minerals, Metals & Materials Series. , Cham: Springer Nature Switzerland, 2024, pp. 860–870. doi: 10.1007/978-3-031-63937-1_80.

J. Berry and K. A. Christofidou, ‘Supervised machine learning for multi-principal element alloy structural design’, Materials Science and Technology, 02670836241272086, 2024.

Tse MCH, Livera ER, Christofidou KA. “Metallurgical developments in steam-methane reformer tube alloys”. Materials Science and Technology. 2024;0(0). doi:10.1177/02670836241262199

S. Driver, J. Markanday, K.A. Christofidou, P.M. Mignanelli, H.J. Stone, "Elasticity, acoustic loss, and γ′ dissolution in superalloys from resonant ultrasound spectroscopy", Materials Science and Technology (2024) Accepted for publication

E.R. Livera, J.R. Miller, J. Shrive, L. Chechik, K. Christofidou, D. Ryan, I. Todd, "Microstructural control of LPBF Inconel 718 through post processing of intentionally placed AM discontinuity distributions", Materialia 36 (2024) 102163

Berry, J., Snell, R., Anderson, M., Owen, L.R., Messé, O.M.D.M., Todd, I. and Christofidou, K.A. (2024), Design and Selection of High Entropy Alloys for Hardmetal Matrix Applications Using a Coupled Machine Learning and Calculation of Phase Diagrams Methodology. Adv. Eng. Mater., 26: 2302064.

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, vol. 54, no. 6, pp. 2505–2505, 2023.

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. 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

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

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

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.

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

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

2019

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.

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.

2017

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.

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

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