Experimental assessment of nanovoids growth
Abstract eng: The growth of nanovoids in crystalline metallic material is assessed experimentally as a function of the applied macroscopic plastic strain, stress triaxiality and crystal orientation. Nanovoids - of diameter ranging from 20 to 80nm - are generated by performing heavy-ion irradiation on austenitic steel, leading to a model material constituted of a well-defined nanovoids distribution. Pre- and poststraining Transmission Electron Microscope (TEM) observations allow to quantify the growth and the evolution of aspect ratio as a function of plastic strain. Size and crystal orientation effects are evaluated. Experiments are compared to the results of crystal plasticity finite element simulations.
Publisher:
International Union of Theoretical and Applied Mechanics, 2016
Conference Title:
Conference Title:
24th International Congress of Theoretical and Applied Mechanics
Conference Venue:
Montreal (CA)
Conference Dates:
2016-08-21 / 2016-08-26
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2016-11-15, last modified 2016-11-15
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