Photo: Henna Herronen
In his doctoral dissertation, MSc (Tech) Lassi Raami investigated how the properties of stainless steels can be enhanced by utilizing novel heat treatments. Using computer modelling and empirical experiments, he showed that quenching and partitioning (Q&P) heat treatment can be applied for creating a multiphase microstructure into stainless steel, which increases the strength of the steel. Furthermore, the studies showed that the selection of the right heat treatment parameters can significantly improve the cavitation erosion resistance of the studied steels. The results could therefore be applied for prolonging the service life of components used in environments prone to cavitation.
The doctoral dissertation of MSc (Tech) Lassi Raami in the field of Materials Science titled Quenching and Partitioning of Martensitic Stainless Steels: Heat Treatment, Microstructure, Mechanical Properties, and Cavitation Erosion Resistance will be publicly examined at the Faculty of Engineering and Natural Sciences at Tampere University on 7 August 2026.
The Opponents will be Associate Professor Ilana Timokhina from the Luleå University of Technology in Sweden and Doctor, R&D Principal Expert Severi Anttila from Outokumpu Stainless Oy. The Custos will be Professor Pasi Peura from the Faculty of Engineering and Natural Sciences, Tampere University.