University of Cagliari
partially_open
Valeria Saiu
Statistical study on the effects of heterogeneous deformation and grain boundary character on hydrogen-induced crack initiation and propagation in twining-induced plasticity steels
Pia G.;
2021-01-01
Abstract
The initiation and propagation of hydrogen-induced cracks (HICs) in twining-induced plasticity (TWIP) steel were quantificationally explored based on the HIC statistics at a macro level and a micro level by slow strain rate tensile (SSRT) with in-situ hydrogen-charging and electron microanalysis. The heterogeneous deformation and grain boundary character determines a HIC initiation. The slip transfer parameter m′ < 0.93 and the minimum residual Burgers vector of residual dislocations on a grain boundary br > 0.19 were the critical condition for HIC initiation. Moreover, HICs prone to initiate and propagate along random grain boundaries (RGBs), while the Σ3 grain boundaries and vice.
Files in This Item:
| File | Size | Format | |
|---|---|---|---|
| 2021_Statistical study on effects of heterogeneous deformation and grain boundary_.pdf Open Access from 10/09/2022
Type: Author’s Accepted Manuscript AAM, Post-print, (version accepted by the publisher)
Size 2.17 MB
Format Adobe PDF
|
2.17 MB | Adobe PDF | View/Open |
| 2021_Statistical study on the effects of heterogeneous deformation and grain boundary character on hydrogen-induced crack initiation and propagation in twining-induced plasticity steels_compressed.pdf Solo gestori archivio
Type: versione editoriale
Size 2.61 MB
Format Adobe PDF
|
2.61 MB | Adobe PDF | & nbsp; View / Open Request a copy |
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