Observation of a new dynamic recovery mechanism in the high strain regime

Tianbo Yu, Niels Hansen, Xiaoxu Huang, Andy Godfrey

Research output: Contribution to journalConference articleResearchpeer-review

246 Downloads (Pure)

Abstract

Plastic deformation of metals refines the microstructure and increases the strength through work hardening, but this effect of deformation is counterbalanced by dynamic recovery. After deformation to large strains, the microstructure typically shows a lamellar morphology, with finely spaced lamellar boundaries connected by triple junctions. Here we report that mechanically assisted triple junction motion is an important mechanism of dynamic recovery, and it replaces two boundaries by one, while maintaining the structural morphology. The observation rationalizes many features of the evolution of microstructure and strength in metals deformed to large strains, including an approach to a steady state.
Original languageEnglish
JournalProceedings of the Risø International Symposium on Materials Science
Volume35
Pages (from-to)493-500
ISSN0907-0079
Publication statusPublished - 2014
Event35th Risø International Symposium on Materials Science : New Frontiers of Nanometals - DTU, Risø Campus, Roskilde, Denmark
Duration: 1 Sep 20145 Sep 2014
Conference number: 35

Conference

Conference35th Risø International Symposium on Materials Science : New Frontiers of Nanometals
Number35
LocationDTU, Risø Campus
CountryDenmark
CityRoskilde
Period01/09/201405/09/2014

Fingerprint Dive into the research topics of 'Observation of a new dynamic recovery mechanism in the high strain regime'. Together they form a unique fingerprint.

Cite this