Cyclic plastic behaviour of UFG copper under controlled stress and strain loading

0358780 - ÚFM 2012 RIV SK eng C - Conference Paper (international conference)
Navrátilová, L. - Obrtlík, Karel - Kunz, Ludvík
Cyclic plastic behaviour of UFG copper under controlled stress and strain loading.
SEMDOK 2011. Žilina: Žilinská univerzita, 2011, s. 21-24. ISBN 978-80-554-0315-1.
[16th International PhD. Students Seminar. Těrchová (SK), 26.01.2011-28.01.2011]
R&D Projects: GA ČR GAP108/10/2001
Institutional research plan: CEZ:AV0Z20410507
Keywords : ultrafine-grained copper * stress and strain controlled testing * fatigue * stability of UFG structure
Subject RIV: JL - Materials Fatigue, Friction Mechanics

The influence of stress and strain-controlled loading on microstructure and cyclic plastic behaviour of ultrafine-grained copper prepared by equal channel angular pressing was examined. The stability of microstructure is a characteristic feature for stress-controlled test whereas grain coarsening and development of bimodal structure was observed after plastic strain-controlled tests. An attempt to explain the observed behaviour was made.
Permanent Link: http://hdl.handle.net/11104/0196718