Dr Hiren Kotadia

School of Engineering

Dr Hiren Kotadia joined Liverpool John Moores University in September 2022 from the University of Warwick, UK, where he continues to have an honorary visiting research position. Hiren was educated in India where he obtained his first degree from M. S. University, Baroda and his MMet from the University of Sheffield and PhD from Brunel University London. He joined King’s College London (from 2009 to 2012) as postdoctoral researcher and worked for Constellium (manufacturer of aluminium) (from 2012 to 2015) as a research scientist. In 2015, Hiren joined WMG, University of Warwick, where he was promoted to senior research fellow and became associate professor.

Hiren has been highly active in light alloys and solidification processes (Casting, Welding, Soldering and Additive Manufacturing) for over 10 years with an aim to reduce CO2 emissions through light weighting, microstructure design, waste management and recycling. He has served as lead expert of lightweight strategy for the HMV Catapult at WMG and ‘near-net shape’ Catapult forum. Currently, his research focuses on laser processing for microelectronics, additive manufacturing, welding, and texturing. His team's specific focus lies in comprehending laser-material interaction and conducting microstructure/surface modifications tailored to specific application requirements.

Research interests: Hiren research focus is solidification, phase transformation and new alloy development by using advanced research tools, including ex-situ and in-situ.
(1) Aluminium alloys for Additive manufacturing (Alloy design – Processing – Microstructure – Properties)
(2) Optimising advanced laser welding processes for joining light alloys in multi-material structures (e.g. steel to aluminium) and texturing for high friction and corrosion applications
(3) Microstructure – Corrosion relationships for metallic material
(4) High Temperature Microelectronics for automotive, oil and gas industry
(5) Flexible Printed Electronics

Research grant:
(1) £345,085: Development of a HIGH-Capacity FLEXible Energy Storage System for Mini-Grid Application in Sub-Sahara Africa (Innovate UK – 10/2023 to 12/2025). Project number: 10084724 (JeS No. TS/Y013727/1)- Co-I
(2) £99,989: Electric SOV with Methanol Range Extender – Innovate UK– 10/2023 to 12/2025. Project number: 10070138 - Co-I
(3) £84,000: Development of intelligent multisensory technology for proactive asset management (Innovate UK – 10/2023 to 09/2025). Project number: 10075727 (JeS No. TS/Y005236/1)- Co-I
(4) £568,000: Combined demonstrations Retrofittable Propulsion System for Electric Vessels with Hydrogen Range Extender (Innovate UK – 04/2023 to 03/2025). Application number: 10055448 (JeS No. TS/X018407/1) - Co-I
(5) £50,000: Development of Sustainable Metal Casting Technology for Low Greenhouse Emissions. (The Royal Academy of Engineering – 04/2018 to 03/2020). Project no. IAPP1R2\100109 - PI
(6) £159,500: Optimisation and Alloy Section of the Forming of Copper Alloys (Funding company: AWE – 02/2018 to 01/2019) - PI.
(7) £46,254: Similar and dissimilar metal joining for automotive application (Funding company: POSCO – 06/2017 to 03/2018) - Co-I.
(8) £84,469: A Greener approach to high integrity metal casting (Advanced Propulsion Centre, UK) – 01/2018 to 03/2019) - PI
(9) £111,096: Industrial CASE award for Recycling aluminium (EPSRC I CASE with JLR-10/2018 to 09/2023). Project no. 17000037 - PI




2010, Brunel University London, United Kingdom, PhD
2005, University of Sheffield, United Kingdom, MMet
2003, M. S. University, India, BE


2019, Advance HE, Fellow of the Higher Education Academy (FHEA)

Academic appointments

Senior Lecturer, School of Engineering, Liverpool John Moores University, 2021 - present
Associate Professor, WMG, University of Warwick, 2021 - 2021
Senior Research Fellow, WMG, University of Warwick, 2017 - 2021
Research Fellow, WMG, University of Warwick, 2015 - 2017

Journal article

Opoz T, Burgess A, Ahuir Torres J, Kotadia HR, Tammas-Williams S. 2024. The effect of surface finish and post-processing on mechanical properties of 17-4 PH stainless steel produced by the atomic diffusion additive manufacturing process (ADAM) International Journal of Advanced Manufacturing Technology, 130 :4053-4066 DOI Publisher Url Public Url

Ahuir-Torres JI, Gibbons GJ, West G, Das A, Kotadia HR. 2023. Understanding the corrosion behaviour of Al-Mg alloy fabricated using a Laser Powder Bed Fusion (L-PBF) Additive Manufacturing (AM) process Journal of Alloys and Compounds, 969 DOI Publisher Url Public Url

Ahuir Torres JI, Kotadia HR, Opoz TT. 2023. Effect of the electrical discharge machining on Ti6Al4V corrosion behaviour in simulated body fluid Surface and Coatings Technology, 470 DOI Publisher Url Public Url

Yang X, Gibbons GJ, Tanner DA, Li Z, Wilson P, Williams MA, Kotadia HR. 2023. Scan strategy induced microstructure and consolidation variation in the laser-powder bed fusion (L-PBF) additive manufacturing of low alloy 20MnCr5 steel Materials and Design, 232 DOI Publisher Url Public Url

Ahuir Torres J, Kotadia H, Opoz T, Sharp MC. 2023. A Study on the Corrosion Behaviour of Laser Textured Pure Aluminium in Saltwater Processes, 11 DOI Publisher Url Public Url

Jabar S, Baghbani Barenji A, Franciosa P, Kotadia HR, Ceglarek D. 2023. Effects of the adjustable ring-mode laser on intermetallic formation and mechanical properties of steel to aluminium laser welded lap joints Materials and Design, 227 DOI Publisher Url Public Url

Taylor S, Dhara S, Slater C, Kotadia H. 2022. Identifying Optimal Hot Forming Conditions for AA6010 Alloy by Means of Elevated Temperature Tensile Testing Metals, 13 DOI Publisher Url Public Url

Al-Mahdy A, Kotadia H, Sharp MC, Opoz T, Mullett J, Ahuir Torres JI. 2022. Effect of Surface Roughness on the Surface Texturing of 316l Stainless Steel by Nanosecond Pulsed Laser Lasers in Manufacturing and Materials Processing, DOI Author Url Publisher Url Public Url

Kotadia HR, Gibbons G, Das A, Howes PD. 2022. A review of Laser Powder Bed Fusion Additive Manufacturing of aluminium alloys: Microstructure and properties Additive Manufacturing, 46 :102155-102155 DOI Publisher Url

Patel D, Biswas P, Kumar A, Kotadia HR, Mallik A, Das S. 2022. On the Prediction of Grain Refinement Mechanism in Direct Chill Casting of Aluminum and Its Alloys Under Low Degree Mechanical Forced Convection Metals and Materials International, 28 :1741-1750 DOI Publisher Url

Kotadia HR, Franciosa P, Jabar S, Ceglarek D. 2022. Remote laser welding of Zn coated IF steel and 1050 aluminium alloy: processing, microstructure and mechanical properties Journal of Materials Research and Technology, 19 :449-465 DOI Publisher Url Public Url

Patel D, Kundu A, Kundu A, Biswas P, Kotadia HR, Mallik A, Das S. 2021. In-house design of forced convection direct chill casting simulator for casting immiscible Al-Sn alloys International Journal of Cast Metals Research, 34 :135-142 DOI Publisher Url

Bhogaraju SK, Kotadia HR, Conti F, Mauser A, Rubenbauer T, Bruetting R, Schneider-Ramelow M, Elger G. 2021. Die-Attach Bonding with Etched Micro Brass Metal Pigment Flakes for High-Power Electronics Packaging ACS Applied Electronic Materials, 3 :4587-4603 DOI Author Url Publisher Url

Kumar M, Gibbons GJ, Das A, Manna I, Tanner D, Kotadia HR. 2021. Additive manufacturing of aluminium alloy 2024 by laser powder bed fusion: microstructural evolution, defects and mechanical properties Rapid Prototyping Journal, 27 :1388-1397 DOI Publisher Url

Khan MH, Das A, Li Z, Kotadia HR. 2021. Effects of Fe, Mn, chemical grain refinement and cooling rate on the evolution of Fe intermetallics in a model 6082 Al-alloy Intermetallics, 132 DOI Publisher Url

Taylor S, West GD, Mogire E, Tang F, Kotadia HR. 2021. Superplastic forming characteristics of AZ41 magnesium alloy Transactions of Nonferrous Metals Society of China, 31 :648-654 DOI Publisher Url Public Url

Bhogaraju SK, Conti F, Kotadia HR, Keim S, Tetzlaff U, Elger G. 2020. Novel approach to copper sintering using surface enhanced brass micro flakes for microelectronics packaging Journal of Alloys and Compounds, 844 :156043-156043 DOI Publisher Url

Biswas P, Kundu A, Kotadia HR, Mallik A, Das S. 2020. Design and manufacturing of a novel continuous casting technique for the addition of ceramic particulate reinforcement, alloying elements and grain refiners in Al-system CIRP Journal of Manufacturing Science and Technology, 31 :342-350 DOI Publisher Url

Taylor S, Masters I, Li Z, Kotadia HR. 2020. Direct Observation via In Situ Heated Stage EBSD Analysis of Recrystallization of Phosphorous Deoxidised Copper in Unstrained and Strained Conditions Metals and Materials International, 26 :1030-1035 DOI Publisher Url

Kotadia HR, Qian M, Das A. 2020. Microstructural modification of recycled aluminium alloys by high-intensity ultrasonication: Observations from custom Al–2Si–2Mg–1.2Fe–(0.5,1.0)Mn alloys Journal of Alloys and Compounds, 823 :153833-153833 DOI Publisher Url

Taylor S, Kotadia HR. 2020. Microstructural evolution of 316L austenitic stainless steel during in-situ biaxial deformation and annealing Materials Characterization, 163 :110288-110288 DOI Publisher Url

Cassinath Z, Li Z, Sridhar S, Das A, Kotadia HR. 2019. Microstructural modification of Sn–Bi and Sn–Bi–Al immiscible alloys by shearing Materials Science and Technology, 35 :2157-2164 DOI Publisher Url

Taylor S, Masters I, Li Z, Kotadia HR. 2019. Influence of Elevated Temperatures on Mechanical Properties and Microstructure of C106 Copper Investigated by In Situ Heated Stage EBSD Analysis Metallurgical and Materials Transactions A, 50 :4493-4497 DOI Publisher Url

Taylor S, Masters I, Li Z, Kotadia HR. 2019. Comparison of Formability and Microstructural Evolution of C106 Copper and 316L Stainless Steel JOM, 71 :2721-2727 DOI Publisher Url

Kotadia HR, Mannan SH, Das A. 2019. Influence of Zn Concentration on Interfacial Intermetallics During Liquid and Solid State Reaction of Hypo and Hypereutectic Sn-Zn Solder Alloys Journal of Electronic Materials, 48 :2731-2736 DOI Publisher Url

Saxena A, Indriyati M, Rajveer , Biswas P, Kotadia HR, Das S. 2019. Tribological behaviour of hot extruded Al–Cu–Mg–Ag alloy reinforced by TiB2 particles Materials Science and Technology, 35 :953-961 DOI Publisher Url

Kotadia HR, Rahnama A, Sohn IR, Kim J, Sridhar S. 2019. Performance of dissimilar metal Self-Piercing Riveting (SPR) joint and coating behaviour under corrosive environment Journal of Manufacturing Processes, 39 :259-270 DOI Publisher Url

Kotadia HR, Qian M, Das A. 2018. Solidification of Aluminium Alloys Under Ultrasonication: An Overview Transactions of the Indian Institute of Metals, 71 :2681-2686 DOI Publisher Url

Papadimitriou I, Efthymiadis P, Kotadia HR, Sohn IR, Sridhar S. 2017. Joining TWIP to TWIP and TWIP to aluminium: A comparative study between joining processes, joint properties and mechanical performance Journal of Manufacturing Processes, 30 :195-207 DOI Publisher Url

Kotadia HR, Qian M, Eskin DG, Das A. 2017. On the microstructural refinement in commercial purity Al and Al-10 wt% Cu alloy under ultrasonication during solidification Materials & Design, 132 :266-274 DOI Publisher Url

Rahnama A, Kotadia H, Sridhar S. 2017. Effect of Ni alloying on the microstructural evolution and mechanical properties of two duplex light-weight steels during different annealing temperatures: Experiment and phase-field simulation Acta Materialia, 132 :627-643 DOI Publisher Url

Kotadia HR, Das A. 2015. Modification of solidification microstructure in hypo- and hyper-eutectic Al–Si alloys under high-intensity ultrasonic irradiation Journal of Alloys and Compounds, 620 :1-4 DOI Publisher Url

Das S, Barekar NS, El Fakir O, Wang L, Prasada Rao AK, Patel JB, Kotadia HR, Bhagurkar A, Dear JP, Fan Z. 2015. Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting Materials Science and Engineering: A, 620 :223-232 DOI Publisher Url

Rahnama A, Kotadia H, Clark S, Janik V, Sridhar S. Nano-mechanical properties of Fe-Mn-Al-C lightweight steels Scientific Reports, 8 DOI Publisher Url

Conference publication

Jabar S, Sun T, Franciosa P, Kotadia HR, Ceglarek D, Paolini B, Faulhaber R. 2023. Effect of a ring-shaped laser beam on the weldability of aluminum-to-hilumin for battery tab connectors Journal of Laser Applications, 35 DOI Publisher Url Public Url

Bhogaraju SK, Schmid M, Kotadia HR, Conti F, Elger G. 2021. Highly reliable die-attach bonding with etched brass flakes 2021 23rd European Microelectronics and Packaging Conference & Exhibition (EMPC), 2021 23rd European Microelectronics and Packaging Conference & Exhibition (EMPC) DOI Publisher Url

Bhogaraju SK, Schmid M, Hufnagel E, Conti F, Kotadia HR, Elger G. 2021. Low temperature and low pressure die-attach bonding of high power light emitting diodes with self reducing copper complex paste 2021 IEEE 71st Electronic Components and Technology Conference (ECTC), 2021 IEEE 71st Electronic Components and Technology Conference (ECTC) DOI Publisher Url

Kotadia H. 2019. Challenges and Opportunities in Remote Laser Welding of Steel to Aluminium

Kotadia H. Influence of Mn and TiB2 on the Microstructural Evolution of the Primary α-Al Grains and Fe Containing Intermetallic in the Wrought Al-Mg-Si Alloy DOI Publisher Url

Kotadia H. A study on interfacial activities between Nb and liquid Al in static and dynamic condition DOI Publisher Url

Kotadia H. Live EDS Mapping of the Precipitation and Annealing Cycle of Alloys in the TEM Generated Through in Situ Heating DOI Publisher Url

Kotadia H. A multi-pronged approach to low-pressure Cu sintering using surface-modified particles, substrate and chip metallization International Symposium on Microelectronics DOI Publisher Url

Kotadia H. Effect of Ultrasonication on the Solidification Microstructure in Al and Mg-Alloys DOI Publisher Url

Kotadia H. Role of Zinc Content on Solidification and Interfacial Nucleation of Sn-Cu Solder Alloy by Experiments and Phase-field Simulation Proceedings of the 6th Decennial International Conference on Solidification Processing

Kotadia H. Understanding the Ultrasonic Influence on Solidification of Light Metals and Alloys

Al-Mahdy A, Ahuir Torres J, Opoz T, Kotadia H, Mullett J, Sharp M. Surface treatment of reinforced carbon fibre with woven reinforcement using nanosecond pulsed fibre laser ILAS 2023 / 8th Industrial Laser Applications Symposium



Kotadia H. 2021. Toward Sustainable Transportation through Aluminium ALUMINIUM NEWS, :14-14 Publisher Url Public Url