BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20260612T013006Z
UID:https://www.mpie.de/events/18262/3755656
DTSTART:20190411T140000Z
DTEND:20190411T150000Z
CLASS:PUBLIC
CREATED:20190405T131150Z
DESCRIPTION: Portevin Le-Chatelier (PLC) effect is a type of plastic instab
 ility that results in severe strain localization\, reduction in ductility 
 and formation of surface striations during forming operations. Understandi
 ng the underlying microscopic mechanism(s) that govern it requires detaile
 d experimental investigations of the relationships between the phenomenon 
 and local microstructural constituents. Most current models of PLC\, both 
 phenomenological and theoretical\, are based on descriptions of mesoscopic
  observations and global responses observed in stress-strain curves. More 
 predictive (or physically based) models will require investigations at the
  microstructural length-scales. In this talk\, it will be shown that the g
 ap in understanding of the microscopic origins and macroscopic manifestati
 ons of PLC can be bridged by nanoindentation testing. Specifically\, it wi
 ll be shown that by exploiting the high resolution of force and displaceme
 nt measurements and the site-specific capabilities of the nanoindenter\, c
 oupled with complimentary microstructural characterization techniques\, we
  are able to gain new insight into critical aspects of the PLC effect\, in
 cluding its anisotropy\, underlying governing mechanisms and associated ac
 tivation parameters.\nSpeaker: Dr. Henry Ovri
LAST-MODIFIED:20190410T074638Z
LOCATION:Max-Planck-Institut für Eisenforschung GmbH\, Room: Large Confere
 nce Room No. 203
ORGANIZER;CN=Prof. Gerhard Dehm / Dr. Christoph Kirchlechner    :mailto:
SUMMARY:Nanoindentation based investigations of PLC-type plastic instabilit
 y:  <i>Nanoindentation based investigations of PLC-type plastic instabilit
 y</i>
URL;VALUE=URI:https://www.mpie.de/events/18262/3755656
END:VEVENT
END:VCALENDAR