Summary
Research in the group seeks to understand and control microstructure formation in phase transformations. A major focus is on the solidification of metallic alloys, and its applications in electronic soldering and structural castings. Current research programmes include: Pb-free solders for harsh environments; solidification of solder alloys; Al-Mn-Fe intermetallics in magnesium; mushy zone mechanics; and liquid metal alloy ion sources. Our team is part of the Engineering Alloys research theme in the Department of Materials.
Selected publications are given below. A full list of research publications can be found at the tab above, or on Google Scholar. EPSRC research grants can be found at Grants on the web.
Brief CV
Chris read metallurgy at St Edmund Hall, University of Oxford (MEng, 2002) and the University of Queensland, Australia (PhD, 2007), where he worked within the Australian Cooperative Research Centre for Cast Metals Manufacturing (the CAST CRC) on semi-solid deformation of Al and Mg alloys. He was then a Postdoctoral Research Fellow in the Australian Research Council's CoE for design in light metals (2007-08). He returned to the UK to join the Department of Materials at Imperial College London in 2008 on a RAEng/EPSRC Research Fellowship and built a group studying the solidification processing of alloys, focussing on microstructure development in electronic solders and the light alloys, Mg and Al. He was made Lecturer in 2012, Senior Lecturer in 2014, Reader in 2016, and Professor in 2020.
Selected Publications
Journal Articles
Lin CJ, Peng L, Xian JW, et al., 2023, Eutectic solidification in Mg-9Al-0.7Zn: from divorced to coupled growth, Journal of Alloys and Compounds, Vol:938, ISSN:0925-8388, Pages:1-16
Peng L, Zeng G, Xian J, et al., 2022, Al–Mn–Fe intermetallic formation in AZ91 magnesium alloys: Effects of impurity iron, Intermetallics, Vol:142, ISSN:0966-9795, Pages:1-15
Cui Y, Gourlay C, 2022, Growth twinning and morphology of Al45Cr7 and Al13Fe4, Journal of Alloys and Compounds, Vol:893, ISSN:0925-8388, Pages:1-14
Belyakov SA, Coyle RJ, Arfaei B, et al., 2021, Microstructure and damage evolution during thermal cycling of Sn-Ag-Cu solders containing antimony, Journal of Electronic Materials, Vol:50, ISSN:0361-5235, Pages:825-841
Su TC, O'Sullivan C, Yasuda H, et al., 2020, Rheological transitions in semi-solid alloys: in-situ imaging and LBM-DEM simulations, Acta Materialia, Vol:191, ISSN:1359-6454, Pages:24-42
Zeng G, Xian J, Gourlay C, 2018, Nucleation and growth crystallography of Al8Mn5 on B2-Al(Mn,Fe) in AZ91magnesium alloys, Acta Materialia, Vol:153, ISSN:1359-6454, Pages:364-376
Ma Z, Xian J, Belyakov S, et al., 2018, Nucleation and twinning in tin droplet solidification on single crystal intermetallic compounds, Acta Materialia, Vol:150, ISSN:1359-6454, Pages:281-294
Hou N, Belyakov S, Pay L, et al., 2018, Competition between stable and metastable eutectic growth in Sn-Ni alloys, Acta Materialia, Vol:149, ISSN:1359-6454, Pages:119-131
Ma ZL, Belyakov SA, Sweatman K, et al., 2017, Harnessing heterogeneous nucleation to control tin orientations in electronic interconnections, Nature Communications, Vol:8, ISSN:2041-1723
Shang H, Ma ZL, Belyakov SA, et al., 2017, Grain refinement of electronic solders: The potential of combining solute with nucleant particles, Journal of Alloys and Compounds, Vol:715, ISSN:0925-8388, Pages:471-485
Xian J, Belyakov S, Ollivier M, et al., 2017, Cu6Sn5 crystal growth mechanisms during solidification of electronic interconnections, Acta Materialia, Vol:126, ISSN:1359-6454, Pages:540-551
Xian JW, Ma ZL, Belyakov SA, et al., 2017, Nucleation of tin on the Cu6Sn5 layer in electronic interconnections, Acta Materialia, Vol:123, ISSN:1359-6454, Pages:404-415
Kareh KM, O'Sullivan C, Nagira T, et al., 2016, Dilatancy in semi-solid steels at high solid fraction, Acta Materialia, Vol:125, ISSN:1873-2453, Pages:187-195
Kareh KM, Lee PD, Atwood RC, et al., 2014, Revealing the micromechanisms behind semi-solid metal deformation with time-resolved X-ray tomography, Nature Communications, Vol:5, ISSN:2041-1723, Pages:1-7
Belyakov SA, Gourlay CM, 2014, Heterogeneous nucleation of βSn on NiSn4, PdSn4 and PtSn4, Acta Materialia, Vol:71, ISSN:1873-2453, Pages:56-68
Fonseca J, O'Sullivan C, Nagira T, et al., 2013, In situ study of granular micromechanics in semi-solid carbon steels, Acta Materialia, Vol:61, ISSN:1359-6454, Pages:4169-4179
Belyakov SA, Gourlay CM, 2012, NiSn4 formation during the solidification of Sn-Ni alloys, Intermetallics, Vol:25, ISSN:0966-9795, Pages:48-59
Yuan L, O'Sullivan C, Gourlay CM, 2012, Exploring dendrite coherency with the discrete element method, Acta Materialia, Vol:60, ISSN:1359-6454, Pages:1334-1345
Gourlay CM, Dahle AK, Nagira T, et al., 2011, Granular deformation mechanisms in semi-solid alloys, Acta Materialia, Vol:59, ISSN:1359-6454, Pages:4933-4943
Gourlay CM, Nogita K, Dahle AK, et al., 2011, In situ investigation of unidirectional solidification in Sn-0.7Cu and Sn-0.7Cu-0.06Ni, Acta Materialia, Vol:59, ISSN:1359-6454, Pages:4043-4054
Gourlay CM, Dahle AK, 2007, Dilatant shear bands in solidifying metals, Nature, Vol:445, ISSN:0028-0836, Pages:70-73