Dr Liu Hongfei is a Principal Scientist and Group Leader of Corrosion and Protective Coating (CPC) in the Future Energy Acceleration and Translation (FEAT) Centre at the Institute of Materials Research and Engineering (IMRE), A*STAR, Singapore. He obtained his Ph.D. in Condensed Matter Physics from the Institute of Physics, Chinese Academy of Sciences in 2001, and his B.E. in Semiconductor Physics and Devices from Xi’an Jiaotong University in 1996. His current research focuses on corrosion testing of structural metal alloys and development of protective coatings towards their applications in extreme conditions, including liquid metal, molten salt, and high temperature/high pressure water.
Research Interests
- Electrochemical corrosion test, including potential dynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), galvanic corrosion, flow-accelerated corrosion, etc.
- Salt spray corrosion
- Hot corrosion in simulated gas environments
- Liquid metal corrosion
- Molten salt corrosion
- High-temperature and high-pressure aqueous corrosion
- Stress-corrosion cracking
- Corrosion fatigue
- Protective thin film coating by atomic layer deposition (ALD), chemical vapor deposition (CVD), and physical vapor deposition (PVD)
- Protective oxide coating (up to 100 mm thick) by plasma electrolytic oxidation
- Millimetre-thick protective coating by laser-cladding and twin-wire arc spray
Selected Publications
- X. Huang, P.S.S.R. Krishnan, K. Kuah, T. Meng, Y. Ng, H. Liu, S.L. Teo, R. Karyappa, M. Lin, A.C.Y. Ngo, V. Ramanujan, D. J. Blackwood, H. Liu*, Distinct phase-selective corrosion of Ti-48Al alloy in aqueous electrolyte and molten salt, Corros. Sci. 231 (2024) 111997.
- Hu. Yu, W. Liang, Q. Miao, M. Yin, Y. Wang, H. Liu, H. Jin, F. Wei, N. Gong, High temperature oxidation resistance and thermodynamic properties of (TaNbZr)N and (TaNbZr)C quaternary ceramic coating, Corros. Sci. 237 (2024) 112315.
- N. Gong, T. Meng, S.L. Teo, J. Cao, C.J.J. Lee, C.K.I. Tan, D.C.C. Tan, Ady Suwardi, M. Lin, R.D.K. Misra, H. Liu*, High-temperature oxidation and hot corrosion of Ni-based single crystal superalloy in the incubation stage, Corros. Sci. 214 (2023) 111026.
- H. Liu*, C.K.I. Tan, T. Meng, S.L. Teo, J. Liu, J. Cao, Y. Wei, D.C.C. Tan, C.J.J. Lee, A. Suwardi, M. Lin, Hot corrosion and internal spallation of laser-cladded inconel 625 superalloy coatings in molten sulfate salts, Corros. Sci. 193 (2021) 109869.
- H. Liu*, S. Chen, D.C.C. Tan, C.J.J. Lee. K. Yao, Hot corrosion studies of a salt‐coated Ni‐based superalloy under flowing wet air and sulphur vapor ambient, Mater. Corros. 71 (2020) 1608.
- C.K.I. Tan, G. Chen, and H. Liu*, Laser applied coatings for corrosion protection, Shreir’s Corrosion 2nd edition (Elsevier Science, ISBN-13: 978-0443299292), Chapter 5, September 2026.
- Y. Ng, X. Tan, T. Meng, A.M. Yong, H. Liu*, Uniform alumina coatings on the inner surfaces of aluminium alloy tubes by plasma electrolytic oxidation for enhanced mechanical and corrosion resistance, Sci. Coat. Technol. 524 (2026) 133289.
- X. Tan, Y. Ng, T. Meng, A.M. Yong, H. Liu*, Magnetron sputtering deposition and characterization of NiFeCrCo high entropy alloy thin films on rigid and flexible substrates, Sci. Coat. Technol. 517 (2025) 132833.
- Y. Ng, X. Tan, H.R. Tan, A.M. Yong, T. Meng, M. Lin, H. Liu*, Amorphous oxide coating deposited by plasma electrolytic oxidation on the inner walls of seamless Ti-3Al-2.5V tubes, Sci. Coat. Technol. 513 (2025) 132537.
- H. Liu*, C.K.I. Tan, Y. Wei, S.H. Lim, C.J.J. Lee, Laser-cladding and interface evolutions of inconel 625 alloy on low alloy steel substrate upon heat and chemical treatments, Sci. Coat. Technol. 404 (2020) 126607.