Region of Research

Development of innovative manufacturing technology is required to manufacture high-performance machine products and structures of the next-generation. Department of Reliability Evaluation & Simulation conducts research and education for elucidation and control of the factors on weldment properties by high accurate evaluation based on material science and engineering. In order to create innovative and attractive technique of welding & Joining as a final aim, our department are working on elucidation of metallurgical phenomenon such as solidification and transformation, and on developing the predication method for the microstructures and the properties of weldments.

Current Research Subjects

  1. Effect of solidification on microstructural formation and mechanical properties of high strength steel weld metal
  2. Investigation of controlling factor of weld hot cracking susceptibility and establishment of the prediction technology of weld hot cracking
  3. Microstructural control and improvement of weldment properties by grain boundary engineering
  4. Clarification of influential factors of corrosion resistance of stainless steel dissimilar weld
  5. Analysis of solidification/transformation behavior and accurate evaluation of hot crack susceptibility by using In-situ observation method
  6. Investigation of peritectic reaction mechanism on carbon steel during welding process

Assoc. Prof.
Assist. Prof.


Observation of solidification microstructure by liquid Sn quenching

Evaluation of solidification crack susceptibility by Trans-Varestraint test

High temperature in-situ observation by laser microscope

Copyright© Joining and Welding Research Institute Osaka University. All Rights Reserved.