The MAPP Lecture Series began in November 2017 with a lecture by Prof. Richard Leach, University of Nottingham, and will continue in Sheffield in 2018 with regular one-hour lunchtime lectures, from experts in the field of AM. All lectures are open to external attendees, and will be followed by lunch and an opportunity to speak with the lecturer.
The second lecture in the series will be given on 13th February 2018, by Dr Hector Basoalto, University of Birmingham.
Multiscale Materials Modelling of Microstructure Variations and Property Scatter in Additive Manufacturing
The rapid development of additive manufacturing has given rise to a range of technologies which are poorly understood from a scientific perspective despite being applied in industry for component manufacturing. In particular the relationship between the deposition parameters (e.g. speed, power, heat source size) and the emerging microstructures are not well understood and due to the multiscale-multiphysics nature of the processes these cannot readily be established from experimental trials alone. Consequently computer simulation has been used to assist in understanding the process. However the behaviour at the macroscale component level is dependent on the microscale interactions between the heat source, metal addition and the substrate and consequently any modelling approach has to account for the effects at different length scales. A multiscale materials modelling approach will be presented that aims to capture both the microstructural evolution and micromechanical fields and link these to the resulting macroscopic behaviour during selective laser melting (SLM).
Dr Hector Basoalto is Reader in Multi-Scale Materials Modelling and Technical Director of the Partnership for Research in Simulation of Manufacturing and Materials (PRISM2). His research explores the causal relationships between microstructure, manufacturing process routes and mechanical properties of engineering alloys. Dr Hector Basoalto is engaged in the development of ICME frameworks for the simulation of materials behaviour relevant to manufacturing and in-service conditions. In particular in the development of multiscale materials modelling frameworks that aim to derive emergent properties from underlying microstructure distributions targeted at addressing industrial challenges. His research interest includes: high temperature behaviour of engineering alloys (creep, fatigue), crystal plasticity, field dislocation mechanics, microstructure evolution, multiscale materials modelling approaches to additive manufacture, solid state welding, forming processes.