Division of Material Mechanics, Department of Applied Physics and Mechanical Engineering,
Luleå University of Technology (LTU)
Postal address: Avd. för materialmekanik, Institutionen för Tillämpad fysik, maskin- och materialteknik (TFMM), Luleå University of Technology, SE-971 87 Luleå, Sweden Visiting address: E-building, Geogränd
The Division of Computer Aided Design has a longstanding history of cooperation, both national and international, with different companies. Since the start, on 1 January 1989, the division has carried out research and education related to product development and now has a well established position in this field.
Research collaboration with South Asia
In December 2009, Prof. Lindgren received SEK 600 000 as a three-year grant from the Swedish Research Links programme (funded by Sida and the Swedish Research Council) for a India related project entitled ”Finite Element Modelling to predict the evolution of microstructure and properties of metastable stainless steels during forming and subsequent heat treatments”. See the full list of South Asia related projects given Swedish Research Links gants 2009.
The research project will be carried out by two research groups led by Prof. Lindgren, in collaboration with Dr. Kanyakumari Datta, an affiliate of the School of Materials and Nano Technology at Jadavpur University in Kolkata, India. These groups have specific expertise that complements each other to address the subject. Professor Lindgren and his group’s expertise in computational mechanics, material mechanics, material modelling, manufacturing simulations would ideally complement Dr. Datta and her group’s expertise in numerical modelling of microstructural evolutions in metallurgical processes using X-rays and various microscopic techniques. Both the groups have been working with metastabe alloy systems in the past. Pulling together the unique background of these two groups who help in a deeper understanding of the emerging issues in this field of study. The project theme is crossing the borders and reaching out to build robust models for metastable stainless steels. Abstract: Metastable stainless steels are thermodynamically designed to be unstable such that a phase change from austenite to martensite occurs due to thermo-mechanical straining. Thereby it is possible to design applications that require high hardness in service but have a good formability during manufacturing. The manufacturing processes must be correctly designed in order to obtain this. The aim of the cooperation is to develop such models.
In order to predict the expected properties of the stainless steel, it is important to know the evolution of the internal microstructure during deformation and subsequent heat treatments. FE models help in calculating the microstructure along with complementary experiments.