BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Designer alloys for tailored deformation-induced phase transformat
 ions: Revealing per-grain behaviour  - Dr David Collins\, Department of Ma
 terials Science and Metallurgy\, University of Cambridge 
DTSTART:20241101T140000Z
DTEND:20241101T150000Z
UID:TALK221452@talks.cam.ac.uk
CONTACT:46601
DESCRIPTION:To understand the deformation response of a polycrystalline ma
 terial\, it is necessary to study the factors that govern the onset of pla
 sticity for individual grains. This is particularly true for high-ductilit
 y structural alloys that possess a stress induced phase transformation\, w
 here the character of a grain and its neighbourhood influences its behavio
 ur. Here\, a novel complex-phase steel alloy is conceived with a deliberat
 ely unstable parent phase (austenite) that enables deformation-induced mar
 tensitic transformations (DIMT) to be explored at low levels of plastic st
 rain. This permits the DIMT to be studied\, in-situ and non-destructively\
 , using both far-field Three-Dimensional X-Ray Diffraction (3DXRD) and Ele
 ctron Back-Scatter Diffraction (EBSD). Our approach uniquely tracks the ma
 rtensitic transformation directly\, describing the influence of grain size
 \, orientation\, and grain neighbourhood configuration with respect to the
  evolving per-grain stress states. In this talk\, the insights will be pla
 ced in context to the future design of alloys where the deformation respon
 se can be controlled by tailoring microstructure and local or macroscopic 
 crystal orientations.
LOCATION:Department of Engineering - LT2
END:VEVENT
END:VCALENDAR