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Chinnapat Panwisawas

Dr Chinnapat Panwisawas CEng, MInstP, MIMMM, MIMechE
EPSRC UKRI Innovation Fellow

Department of Materials
University of Oxford
16 Parks Road
Oxford OX1 3PH

Tel: +44 7551 428989 (mobile)
Tel: +44 1865 273777 (reception)
Fax: +44 1865 273789 (general fax)

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Summary of Interests

Metal additive manufacturing (AM) revolutionises the industrial practice of numerous applications in automotive, aerospace, energy and even biomedical sectors. Understanding of the AM materials is key to unlock the potential of the metallic materials to be applicable successfully via improving additive manufacturability of legacy alloys using innovate processes and designing some novel AM alloys for some specific uses. Computational modelling taking into account the intrinsic property together with the AM process science enables a science-pushed design tool to be established for searching and assessing the ability to additive manufacturing in metallic materials such as nickel-base superalloys, and titanium alloys. This is to exploit my 10-year research expertise in developing predictive capability for advanced manufacturing processes – investment casting, laser/electron beam fusion welding and AM.

Current Research Projects

From Industry 3.0 to Industry 4.0: Additive Manufacturability
Dr. C. Panwisawas
Digital manufacturing is aligned well with the UK Industrial Strategy to become a more innovative-based economy and to support for commercialisation. Additive manufacturing (AM) - an upcoming and disruptive digital technology - is tractable for a wide range of applications ranging from biomedical to aerospace industrial sectors. With the technological benefits of manufacturing flexibility, consecutively adding material layer-by-layer enables sophisticated and complex parts to be additively manufactured with minimal waste, created timely and cost effectively. However, investment in basic scientific understanding of the AM process plays a major role in the successful adoption of the metallic AM in aerospace and biomedical applications. This will help the UK develop technical-level skills and trained people to progressing technologies from laboratory to commercial success. The project, therefore, fits the need of this priority area. The work concerns about the simulation of solid-liquid-vapour transition and relevant thermal fluid mechanics at the AM technological applications. The aim is to use computational modelling to design AM alloys and improve the AM processing through the optimisation of chemical constituents and process conditions, which will be backed up with through-process testings. Non-equilibrium databases for thermo-physical properties will be obtained for establishing processing-structure-property-performance relationship using theory, experiments and computation under the framework of integrated computational materials science. A science-based AM design rule is derived to maximise the use of raw materials with zero-waste and recyclable fashion, and to ensure the integrity of additive manufactured components for repair technology in aerospace usages. It is also anticipated that the effective use of AM technology in aerospace sector especially for repair and manufacturing purposes will lead to disruptive innovation in other innovative technologies such as medical applications. Funded by EPSRC, UKRI through EPSRC UKRI Innovation Fellowship.

1 public active projects

Research Publications

Selected Publications

  • Anderson, M.J.*, Panwisawas, C., Sovani, Y., Turner, R.P., Brooks, J.W., Basoalto, H.C. (2018) Mean-field modelling of the intermetallic precipitate phases during heat treatment and additive manufacture of Inconel 718Acta Materialia, 156:432-445. (DOI: 10.1016/j.actamat.2018.07.002
  • Flint, T.F.*, Panwisawas, C.*, Sovani, Y., Smith, M.C., Basoalto, H.C. (2018), Prediction of grain structure evolution during rapid solidification of high energy density beam induced re-melting, Materials and Design 147:200-210. (DOI: 10.1016/j.matdes.2018.03.036)
  • Panwisawas, C.*, Sovani, Y., Turner, R.P., Brooks, J.W., Basoalto, H.C., Choquet, I. (2018), Modelling of thermal fluid dynamics for fusion weldingJournal of Materials Processing Technology 252:176-182. (DOI: 10.1016/j.jmatprotec.2017.09.019)
  • Panwisawas, C.*, D'Souza, N., Collins, D.M., Bhowmik, A. (2017), The contrasting roles of creep and stress relaxation in the time dependent deformation during in-situ cooling of a nickel-base single crystal superalloyScientific Reports, 7:11145. (DOI: 10.1038/s41598-017-10091-w)
  • Mathur, H.N., Panwisawas, C., Jones, C.N., Reed, R.C., Rae, C.M.F.* (2017), Nucleation of Recrystallisation in  Castings of Single Crystal Ni-based SuperalloysActa Materialia, 129:112-123. (DOI: 10.1016/j.actamat.2017.02.058)
  • Collins, D.M., D'Souza, N., Panwisawas, C.* (2017) In-situ Neutron Diffraction during Stress Relaxation of a Single Crystal Nickel-Base SuperalloyScripta Materialia. 131:103-107. (DOI: 10.1016/j.scriptamat.2017.01.002)
  • Panwisawas, C.*, Perumal, B., Ward, R.M., Turner, N., Turner, R.P., Brooks, J.W., Basoalto, H.C. (2017) Keyhole Formation and Thermal Fluid Flow-Induced Porosity during Laser Fusion Welding in Titanium Alloys: Experimental and ModellingActa Materialia, 126:251-263. (DOI: 10.1016/j.actamat.2016.12.062)
  • Panwisawas, C.*, Qiu, C.L., Anderson, M.J., Sovani, Y., Turner, R.P., Attallah, M.M.,  Brooks, J.W., Basoalto, H.C. (2017) Mesoscale Modelling of Selective Laser Melting: Thermal Fluid Dynamics and Microstructural EvolutionComputational Materials Science, 126:479-490. (DOI: 10.1016/j.commatsci.2016.10.011)
  • D'Souza, N., Kelleher, J., Qiu, C.L., Zhang, S.-Y., Gardner, S.,  Jones, R.E., Putman, D., Panwisawas, C.* (2016) The Role of Stress Relaxation and Creep during High Temperature Deformation in Ni-base Single Crystal Superalloys - Implications to Strain build-up during Directional SolidificationActa Materialia, 106:322-332. (DOI: 10.1016/j.actamat.2016.01.032)
  • Qiu, C.*, Panwisawas, C., Ward, R.M., Basoalto, H.C., Brooks, J.W., Attallah, M.M. (2015), On the Role of Melt Flow into the Surface Structure and Porosity Development During Selective Laser MeltingActa Materialia, 96:72-79. (DOI: 10.1016/j.actamat.2015.06.004)
  • Panwisawas, C.*, Qiu, C., Sovani, Y., Brooks, J.W., Attallah, M.M., Basoalto, H.C. (2015), On the Role of Thermal Fluid Dynamics into the Evolution of Porosity During Selective Laser MeltingScripta Materialia. 105:14-17. (DOI: 10.1016/j.scriptamat.2015.04.016)
  • Panwisawas, C., Mathur, H., Gebelin, J.-C., Putman, D.C., Rae, C.M.F., Reed, R.C.* (2013), Prediction of Recrystallisation in Investment Cast Single Crystal SuperalloysActa Materialia, 61(1):51-66. (DOI: 10.1016/j.actamat.2012.09.013)

A full list of publications are available on Google Scholar and Research Gate