Thesis defence in the University of Oulu

Doctoral Candidate

Master of Science (Tech) Satish Kumar Kolli

Faculty and research unit

University of Oulu Graduate School, Faculty of Technology, Materials and Mechanical Engineering
+358294482123

Field of study

Materials Science

Date and time of the thesis defence

28.7.2020 12:00

Place of the thesis defence

Linnanmaa, auditorium L10

Topic of the dissertation

Sensitization in austenitic stainless steels. Quantitative prediction considering multicomponent thermodynamic and mass balance effects

Opponent

Professor Minnamari Vippola, University of Tampere

Second opponent

Professor Paulo J. Ferreira, The University of Texas at Austin

Custos

Professor Jukka Kömi, University of Oulu

Corrosion and its calculation in austenitic stainless steels

The corrosion in stainless steels is a long-term problem. The austenitic stainless steels when exposed to higher temperatures, they tend to lose corrosion resistance and thus leading to potential failure of the material in the service conditions. This can be prevented by estimating the corrosion behavior at different temperatures and exposure times. This estimation can be done using advanced computer simulations based on high-quality databases consisting of thermodynamic and kinetic data related to the reactions that cause corrosion. The same has been done successfully in this work and the resulted calculations can now be used to identify the potential corrosion problems and avoid them. These can also be used to design new corrosion resistant stainless steels.

 

Dissertation

Last updated: 1.7.2020