Materials engineering
Abrasion and fatigue properties of nano-structured silicon-alloy steels.
Most high performance economical steel grades are obtained either by quenching and tempering, or in some cases by bainitizing. Although, bainitic microstructures resulting from natural cooling can offer interesting properties, they are no match for quenched and tempered steels. However, recent developments done By the University of Cambridge (UK) and CENIM (Spain) have obtained a virtually new kind of microstructure in steels:
Ultrafine (nanometric) bainite, which can be obtained by low temperature isothermal treatment of carefully designed steel grades.
So far these steels have presented outstanding mechanical properties, but the more complex properties (fatigue, wear, etc.) remain to be tested.
In this project the wear resistance properties and fatigue properties of these "nanobainitic" steels will be tested and compared with those of conventional Steel grades used in the industry. This project is being conducted with the collaboration of the divisions of Engineering Materials, Machine Elements and Solid Mechanics.
PhD student: Alejandro Leiro
Supervisors: Braham Prakash, Karl-Gustaf Sundin, Esa Vuorinen.
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