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DTSTAMP:20260413T233228
DTSTART:20151019T113000
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URL:https://murmitoyen.com/events/vanille/udem/detail/631146-multi-scale-de
 gradation-characterisation-of-advanced-engineering-materials-used-in-deman
 ding-environments-n-e-bousser-university-of-manchester
LOCATION:Université de Montréal - Pavillon J.-Armand-Bombardier\, 5155\, 
 chemin de la rampe \, Montréal\, QC\, Canada\, H3T 2B2
SUMMARY:Multi-scale degradation characterisation of advanced engineering ma
 terials used in demanding environments –  E. Bousser\, University of Man
 chester
DESCRIPTION:Etienne Bousser\, Visiting Research Fellow\, The University of
  Manchester\, School of Materials\, Manchester\, United Kingdom.
\nEconomi
 c and environmental concerns require that modern equipment be designed wit
 h ever more stringent performance criteria\, frequently pushing components
  to the very limits of their capabilities. For that reason there is a stro
 ng need to develop new material systems that will allow components to main
 tain their structural integrity while being able to withstand the multitud
 e of aggressions that can occur in service. Because material degradation p
 rocesses occur at or near the surface of components\, surface engineering 
 can be used to locally modify properties. However\, in order to design the
  appropriate protective system\, it is of paramount importance to understa
 nd how these materials behave mechanically\, how such surface treatments o
 r coatings affect the underlying structural material and ultimately how th
 ey fail. Using this knowledge\, novel material systems can then be designe
 d for optimal performance by finding new chemistries\, controlling microst
 ructure or designing new architectures for increased performance.
\nIn thi
 s presentation\, the latest advances in micromechanical characterization m
 ethodologies used to follow damage evolution in engineering materials and 
 components will be presented. This field of study is in rapid development 
 due to the need to understand the effects of reducing dimensions on mechan
 ical properties (i.e. in micro-devices or coated systems)\, the necessity 
 to study the mechanical behavior of materials at the scale of their micros
 tructure which ultimately controls overall performance in application\, an
 d the emergence of the necessary technologies for this type of testing. In
  addition\, a multi-scale 3D workflow developed at the University of Manch
 ester which combines X-ray Computed Tomography (XCT)\, serial sectioning b
 y Focused Ion Beam milling (FIB) combined with Scanning Electron Microscop
 e (SEM) imaging and analysis\, and Scanning Transmission Electron Microsco
 py (STEM) will be presented. This approach allows for the study of a large
  range of materials through length scales in order to better understand th
 e relationship between properties and the underlying microstructure by co-
 visualizing structural\, crystallographic and chemical information.
\nCett
 e conférence est présentée par le RQMP Versant Nord du Département de
  physique de l'Université de Montréal et le Département de génie phy
 sique de Polytechnique Montréal.
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