TY - GEN TI - ELASTIC-PLASTIC BEHAVIOUR OF ADVANCED ADI STUDIED BY IN-SITU SEM TENSILE TEST T3 - METAL 2013 - International Conference on Metallurgy and Materials /22./ AU - Petrenec, M. AB - In-situ SEM tensile tests at room temperature have been performed on flat specimen of advanced austempered ductile cast iron (ADI) alloyed with nickel with the aim to study elastic-plastic behavior together with the nucleation and growth of cracks. During tensile loading the systematic observation of selected locations was studied. The in-situ observation was used to elucidate the tensile curves in agreement with the deformation mechanisms. In the early stage of loading the stress-strain response is elastic. After exceeding elastic limit decohesion of graphite nodules from the matrix was observed. It can be related to the departure of the tensile curve from the elastic behavior. The cracks initiated preferably from interface of graphite nodule and the ausferrite matrix. Elastic-plastic region is connected with the plastic deformation of the matrix and growth and linking of short cracks. SN - 978-80-87294-41-3 UR - http://www.nusl.cz/ntk/nusl-177668 UR - http://hdl.handle.net/11104/0239887 A2 - Tesařová, H. A2 - Polák, Jaroslav A2 - Krahula, Karel LA - eng KW - ADI with nickel alloying KW - SEM-FEG KW - in-situ tensile test KW - deformation mechanisms KW - mechanical properties PY - 2013 PB - Ústav fyziky materiálů, Žižkova 22, 616 62 Brno, http://www.ipm.cz/ ER -