Effect of notch geometry on fracture features

Published on Aug 12, 2015in Materials Science and Engineering A-structural Materials Properties Microstructure and Processing5.234
路 DOI :10.1016/J.MSEA.2015.06.044
G. Sanyal9
Estimated H-index: 9
(BARC: Bhabha Atomic Research Centre),
Arpan Das19
Estimated H-index: 19
(BARC: Bhabha Atomic Research Centre)
+ 1 AuthorsJ.K. Chakravartty24
Estimated H-index: 24
(BARC: Bhabha Atomic Research Centre)
Sources
Abstract
Fracture is the ultimate continuum of a material. Hence, it is possible that the fracture features contain the signature of the whole deformation process undergone due to variation in triaxial state of stress under tensile deformation. The two dimensional fracture features were correlated with the stress triaxiality ratio where initial inclusion content was unaltered. In order to test that, many tensile experiments of a superalloy were carried out at different notch geometries and fractographic investigation was done extensively to correlate the fracture features (ie., fractured grain size, extent of tearing ridge, dimple diameter and dimple number density) with the tensile properties.
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