ELASTIC-PLASTIC BEHAVIOUR OF ADVANCED ADI STUDIED BY IN-SITU SEM TENSILE TEST

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F13%3APU110105" target="_blank" >RIV/00216305:26210/13:PU110105 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
ELASTIC-PLASTIC BEHAVIOUR OF ADVANCED ADI STUDIED BY IN-SITU SEM TENSILE TEST
Original language description
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 theausferrite matrix. Elastic-plastic region is connected with the plastic deformation of the matrix and growth and linking of short cracks. The tensile curves from in-situ stage and standard tensile test were compared and discussed.
Czech name
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Czech description
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Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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