2026-06-20T20:50:04Z https://icatplus.esrf.fr/oaipmh/request

oai:icatplus.esrf.fr:inv/2388803537 2026-06-19T11:36:12.302Z

4.2 EI 10.15151/ESRF-ES-2388803537 Rebeca MIYAR Rebeca Miyar Martina RUFFINO Martina Ruffino James BALL James Ball 0000-0001-5830-8268 Rebeca MIYAR Rebeca Miyar Szilvia KALACSKA Szilvia Kalacska 0000-0001-5601-5859 Martina RUFFINO Martina Ruffino THOMAS EDWARDS Thomas Edwards 0000-0002-3089-0062 Maria Jazmin DUARTE CORREA Maria Jazmin Duarte Correa 0000-0001-7951-7640 Michael CHEN Michael Chen Maria Jazmin DUARTE CORREA Maria Jazmin Duarte Correa 0000-0001-7951-7640 THOMAS EDWARDS Thomas Edwards 0000-0002-3089-0062 Szilvia KALACSKA Szilvia Kalacska 0000-0001-5601-5859 Michael CHEN Michael Chen Example Institute 2029 Data from large facility measurement 2026-05-14T14:00:00Z/2026-05-19T06:00:00Z 2026-05-19T06:00:00Z I CC-BY-4.0 The aim of this experiment is to follow the evolution of double twins in a magnesium alloy during in situ compression tests using scanning 3D X-ray diffraction with a small point-focus beam. While the growth of tension twins in magnesium alloys has successfully been mapped in 3D in the past, the nucleation and growth of compression and double twins have not been studied as deeply. We thus propose to perform micropillar compression tests in a nano-indenter set up on samples containing i) pristine grains, ii) grains with compression twins and iii) grains with double twins, to follow the growth of compression and double twins respectively. Using a 100-nm point-focus beam, we will measure the full strain tensor at sub-grain level at various applied loads and stages of twin growth, thus shedding light on the accommodation of deformation in magnesium alloys via complex twinning mechanisms.