Micro void coalescence of ductile fracture in mild steel during tensile straining
نویسندگان
چکیده
منابع مشابه
Detailed Microstructural Evolutions of TWIP Steel During Tensile Straining: In situ SEM Observations
Microstructural evolutions of twinning induced plasticity (TWIP) steel during tensile straining were investigated by in situ SEM observations. The results indicated that slip lines and mechanical twins as well as surface relief were increased with increasing strain, resulting in a stepped surface. Additionally, these deformation mechanisms could change the shape of each grain via shear and rota...
متن کاملOn localization and void coalescence as a precursor to ductile fracture.
Two modes of plastic flow localization commonly occur in the ductile fracture of structural metals undergoing damage and failure by the mechanism involving void nucleation, growth and coalescence. The first mode consists of a macroscopic localization, usually linked to the softening effect of void nucleation and growth, in either a normal band or a shear band where the thickness of the band is ...
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A new indexing procedure based on the direct measurement of the possible grain orientation is presented to characterize single grains within the frame of three-dimensional X-ray diffraction. Depending on the number of reflections considered, the accuracy of grain orientation may be less than 0.1°. The newly developed indexing method was applied to characterize orientation changes of single grai...
متن کاملTwo mechanisms of ductile fracture: void by void growth versus multiple void interaction
Two distinct mechanisms of crack initiation and advance by void growth have been identified in the literature on the mechanics of ductile fracture. One is the interaction a single void with the crack tip characterizing initiation and the subsequent void by void advance of the tip. This mechanism is represented by the early model of Rice and Johnson and the subsequent more detailed numerical com...
متن کاملdetailed microstructural evolutions of twip steel during tensile straining: in situ sem observations
microstructural evolutions of twinning induced plasticity (twip) steel during tensile straining wereinvestigated by in situ sem observations. the results indicated that slip lines and mechanical twins aswell as surface relief were increased with increasing strain, resulting in a stepped surface. additionally,these deformation mechanisms could change the shape of each grain via shear and rotatio...
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ژورنال
عنوان ژورنال: Frattura ed Integrità Strutturale
سال: 2011
ISSN: 1971-8993
DOI: 10.3221/igf-esis.19.05