Dr Saranarayanan Ramachandran

Materials Knowledge Exchange Associate

Advanced Forming Research Centre

Contact

Personal statement

Saran Ramachandran is a Materials Knowledge Exchange Associate at the Advanced Forming Research Centre (AFRC) of the National Manufacturing Institute Scotland (NMIS). His research has been focused on materials joining techniques and mechanical metallurgy investigations required for high-fidelity service applications of welded structures. His current position has offered him a valuable opportunity to lead challenging work packages of rotary friction welding projects funded by industrial partners. Furthermore, he has been awarded an industrial-focused collaborative research and design project jointly funded by the Scottish Funding Council and a continuous casting technology provider named Rautomead.

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Area of Expertise

I have a strong background in Materials Engineering, and I have more than eight years of R&D experience in material joining technologies that include Friction Stir Welding, Rotary Friction Welding, Gas Tungsten Arc Welding, and Laser Beam Welding for joining complex dissimilar materials (Magnesium-Titanium and Copper-Stainless steel). Additionally, I also have expertise in materials characterisation, including Optical microscopy, SEM, EDX, EBSD, mechanical testing, and non-contact full-field strain measurement techniques such as Digital Image Correlation (DIC). I have a PhD degree in Mechanical Engineering (Materials joining and Characterisation) which was awarded by the University of Southampton. My PhD research delivered a novel high-fidelity experimental methodology to assess the local material response (stress-strain behaviour) of dissimilar welds using a high-resolution DIC technique. During my Ph.D. research, I have delivered extensive research consultancy services to industry-based clients, which received excellent feedback and income to the University. My postdoctoral research project at the University of Manchester has focused on developing a novel soldering process to enable cost-effective high-temperature Pb-free solder interconnects for microelectronics devices. My postdoctoral research involves an in-depth understanding of materials science alongside the application of material characterisation techniques that include small-scale mechanical testing, in-situ synchrotron X-ray imaging, and Electron microscopy techniques to assess the quality of Pb-free solder joints.

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Publications

Analysis and optimisation of parent grain reconstruction for additively manufactured Ti-6Al-4V
Yang Lu, Ramachandran Saranarayanan, Bagasol Axieh, Wu Fan, Guan Qiyu, Browne David J, Dowling Denis, Mirihanage Wajira
International Journal of Lightweight Materials and Manufacture Vol 9, pp. 91-102 (2026)
https://doi.org/10.1016/j.ijlmm.2025.07.009
Probing dendrite growth under microgravity via machine learning-aided multi-scale characterisation
Wu Fan, Mullen Jonathan, Deng Yangchao, Marathe Shashidhara, Ramachandran Saran, Celkin Mert, Murphy Andrew, Sillekens Wim, Mirihanage Wajira, Browne David
Acta Materialia Vol 302 (2026)
https://doi.org/10.1016/j.actamat.2025.121659
Physically based simulation of electromigration-induced hillock and void evolution in Cu interconnects with grain morphology considerations
Jiang Han, Liang Shuibao, Ramachandran Saran, Xu Yaohua
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (2025)
https://doi.org/10.1109/TCAD.2025.3644291
Unraveling thermo-mechanical stress-driven grain evolution and rotation in through-silicon vias for advanced packaging
Jiang Han, Chen Jingyu, Ramachandran Saran, Liang Shuibao
Chip (2025)
https://doi.org/10.1016/j.chip.2025.100176
Microstructure-based fatigue analysis of SiC power module with sintered silver die attach
Guo Z, Liang S, Ramachandran S, Jiang H, Xu Y, Zhong Z
Power Electronic Devices and Components Vol 12 (2025)
https://doi.org/10.1016/j.pedc.2025.100121
Thermomechanical and fatigue analysis of SiC power modules with a comparison of sintered silver and copper die attaches
Liang Shuibao, Guo Zhihao, Jiang Han, Zhong Zhihong, Xu Yaohua, Wang Yi, Ramachandran Saran
Journal of Electronic Materials (2025)
https://doi.org/10.1007/s11664-025-12513-2

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Research Interests

  • Welding of materials with dissimilar properties
  • Non-Destructive Evaluation
  • In-process weld quality assessment through imaging techniques
  • In-situ X-ray imaging
  • Quasi Ambient Bonding
  • Mechanical metallurgy
  • Structure-property correlation
  • Sensor-driven Manufacturing
  • Metal additive manufacturing

Projects

AFRC-CRAD-06321 RFW: Rotary Friction Welding of CuCrZr for Novel Hote End Nose
Ramachandran, Saranarayanan (Principal Investigator) Easton, David (Co-investigator)
06-Jan-2023 - 28-Jan-2023

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Contact

Dr Saranarayanan Ramachandran
Materials Knowledge Exchange Associate
Advanced Forming Research Centre

Email: saranarayanan.ramachandran@strath.ac.uk
Tel: Unlisted