Iikka Virkkunen

Adjunct Professor

T212 Department of Energy and Mechanical Engineering

Research topics include materials degradation and non-destructive testing. In materials degradation, focus is on energy materials (nuclear, in particular), fatigue, thermal fatigue and residual stresses. Recent research focuses on measuring and understanding weld residual stresses in complex nuclear welds, dissimilar metal welds and weld repairs and their possible relaxation during in-service use.

In non-destructive testing, the research focus is on reliability assessment of various NDT methods, probability of detection determination and advanced NDT data processing.

Full researcher profile

https://research.aalto.fi/...

[email protected]

Phone number

+358503475557

Areas of expertise

Materials, Residual stresses, Probability of detection, NDT, Fatigue, 216 Materials engineering, Metals

Research groups

Materials to Products, Adjunct Professor

Publications

On comparison of fracture toughness of irradiated and thermally aged decommissioned nuclear weld metals with miniature specimen test technique

Laura Sirkiä, Siddharth Suman, Pentti Arffman, Noora Hytönen, Iikka Virkkunen 2024 Theoretical and Applied Fracture Mechanics

Deploying Machine Learning for Radiography of Aerospace Welds

Topias Tyystjärvi, Peter Fridolf, Anders Rosell, Iikka Virkkunen 2024 Journal of Nondestructive Evaluation

Study of fusion boundary microstructure and local mismatch of SA508/alloy 52 dissimilar metal weld with buttering

N. Hytönen, Y. Ge, Z. Que, S. Lindqvist, P. Nevasmaa, I. Virkkunen, P. Efsing 2023 Journal of Nuclear Materials

Machine Learning for Plane Wave Imaging

Tuomas Koskinen, Topias Tyystjärvi, Oskari Jessen-Juhler, Iikka Virkkunen 2023 60th Annual Conference of the British Institute of Non-Destructive Testing, NDT 2023

Virtual round robin 2 – Phased array inspection of dissimilar metal welds

Iikka Virkkunen, Tuomas Koskinen, Oskar Siljama 2023 Nuclear Engineering and Design

NDE 4.0 : New Paradigm for the NDE Inspection Personnel

Marija Bertovic, Iikka Virkkunen 2022 Handbook of Nondestructive Evaluation 4.0

Fusion Boundary Microstructure and Fracture Behavior of a nar-row-gap Alloy 52 Dissimilar Metal Weld and an Alloy 52 Dissimilar Metal Weld with Buttering

Noora Hytönen, Zaiqing Que, Sebastian Lindqvist, Jari Lydman, Yanling Ge, Iikka Virkkunen, Ulla Ehrnstén, Paavo Rautala, Pål Efsing, Björn Forssgren 2022 Fontevraud 10, September 19 to 22, 2022, Avignon, France