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Process Metallurgy Lab
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The lab advances the materials science of welding and joining through research that spans multiple fields.

AboutAbout the lab
Advancing welding and joining through materials science
The Process Metallurgy Lab aims to make the materials science of welding and joining more advanced and sophisticated, and carries out research that spans materials science, mechanics, and process engineering.
For the phenomena of welding and joining, the lab works on clarifying and modeling welding metallurgy, and explores techniques for prediction and control.
Its goals are to systematize process metallurgy for welding and joining and to establish technologies that contribute to improved reliability.
Key terms
- Welding metallurgy
- A field that investigates the phenomena occurring in welding and joining from the standpoint of metallurgy, the science of metallic materials
- Interfacial joining
- Joining in which materials are bonded at the boundary (interface) between them. Research is under way on approaches suited to new materials and new processes
- Multiscale
- An approach that links and treats multiple phenomena occurring at different scales
ResearchResearch themes
To make the materials science of welding and joining more advanced and sophisticated, the lab carries out research that spans materials science, mechanics, and process engineering. Its work covers clarifying multiscale material behavior with an atomistic approach, research on interfacial joining for new materials and new processes, and exploring prediction and control techniques based on welding metallurgy.
View More ↗MembersFaculty
- ProfessorHiroyuki Hirata
- Associate ProfessorShotaro Yamashita
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “US Army soldier welding two metal pieces, Fort Gregg-Adams, Virginia, March 2025” Juan F. Jimenez, Army / Public domain (cropped)
- Advancing the materials science of welding and joining: “Welding pipe” Newfoundlandguy / CC BY-SA 4.0 (cropped)
- Related lab (Welding and Joining Process Engineering Lab): “Refill friction stir spot welding robot CR HR” Guruvignesh Lakshmi Balasubramaniam,1 Enkhsaikhan Boldsaikhan,1* Shintaro Fukada,2 Mitsuo Fujimoto2 and Kenichi Kamimuki3 1 Industrial, Systems & Manufacturing Engineering Department, Wichita State University, Wichita, KS 67260, USA 2 Corporate Technology Division, Kawasaki Heavy Industries, Ltd., Akashi 673-8666, Japan 3 Aerospace Division, Kawasaki Heavy Industries, Ltd., Kakamigahara 504-8710, Japan * Author to whom correspondence should be addressed. / CC BY 4.0 (cropped)
- Related lab (Microjoining Engineering Lab [Joining and Welding Research Institute]): “Soldering a 0805” Aisart / CC BY-SA 3.0 (cropped)
- Related lab (Joining Microstructure Design Lab [Joining and Welding Research Institute]): “Stainless pipe weld joints” Flattrackers and Caferacers Parts and bikebuilds / CC BY-SA 2.0 (cropped)
- Related lab (Solid Mechanics Lab): “The brittle fracture surface of low-carbon steel” DanilovVA / CC BY-SA 4.0 (cropped)
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