
Prof.dr.ir. J. (Jilt) Sietsma
Prof.dr.ir. J. (Jilt) Sietsma
Profile
Background & biography
Metals have been determining our technological society for many centuries and will continue to do so in any foreseeable future, provided that their production and application can be transformed in order to become more sustainable, i.e. provided metals can undergo a materials transition towards sustainability. Research on metallic microstructures is crucial in this.
The aim of the research on metallic microstructures is to develop understanding of the behaviour of metals at the level of the microstructure, with a focus on steel, when subjected to conditions of elevated temperatures, mechanical loading, high-energy radiation and combinations thereof. These conditions occur both in the manufacturing phase and in the use phase of the materials life cycle. The research approach is to combine experimental evidence and physics-based modelling at different length scales. Relevant microstructural processes are phase transformation, precipitation, recrystallisation, texture formation, evolution of dislocation structure, development of radiation damage and mechanical damage, and others, on which we develop fundamental understanding in order to optimise industrial processes and sustainability.
The industrial collaborations of the group are extensive due to the extensive societal applications of metals. Prominent examples of application areas are transport (automotive, rail, maritime), energy (wind, nuclear), steel production, high-tech construction. Prominent examples of industrial partners are Tata Steel, SKF, Siemens Gamesa, ProRail, NRG, VDL Weweler.
Jilt Sietsma has been at the department Materials Science and Engineering since 1987 and is a full professor since 2009. He will retire in April 2023.
Expertise
Publications
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2023
Austenite formation from a steel microstructure containing martensite/austenite and bainite bands
J. Abraham Mathews / J. Sietsma / R. H. Petrov / M. J. Santofimia
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2023
Cleavage fracture micromechanisms in simulated heat affected zones of S690 high strength steels
V. Bertolo / Q. Jiang / M. Terol Sanchez / T. Riemslag / C. L. Walters / J. Sietsma / V. Popovich
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2023
Details of pearlite to austenite transformation in steel
Experiments and phase-field modeling
V. Mattos Ferreira / M. G. Mecozzi / R. H. Petrov / J. Sietsma -
2023
Microstructure-based cleavage modelling to study grain size refinement and simulated heat affected zones of S690 high strength steel
Quanxin Jiang / Virgínia M. Bertolo / Vera Popovich / Jilt Sietsma / Carey L. Walters
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2023
Microstructure-based cleavage parameters in bainitic, martensitic, and ferritic steels
Quanxin Jiang / Virgínia M. Bertolo / Sakari Pallaspuro / Vera Popovich / Jilt Sietsma / Carey L. Walters
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Media
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2023-01-15
Herman Russchenberg in de media 2023
Appeared in: NOS
Ancillary activities
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2022-12-01 - 2024-11-30
Consultancy / research and other