Kumar, Ranjeet and Gokhale, A and Varma, Anand and Kumar, Y R and Neelakantan, S and Jain, Jayant (2023) Role of Nb (C, N) and Cr carbides on the fracture behavior of Super304H steel using in-situ tensile studies. Materials Letters, 351 .
Full text not available from this repository.
Abstract
The present work investigates the role of Nb (C, N) precipitates and Cr-carbides on the high-temperature fracture behavior of Super304H steel. To accomplish this, both as-received and sensitized steels were subjected to in-situ tensile testing at 650 degrees Celsius. Both samples exhibit the formation of primary cracks along the coarse (>3 mu m) Nb (C, N) precipitates and their decohesion. Additionally, in sensitized samples, Cr-carbides embrittle the grain boundaries resulting in reduced ductility (36 %) and toughness (39 %). Moreover, fine cracks initiation/propagation along the grain boundary Cr-carbides (typically a weaker region in sensitized steels) is observed.
| Item Type: | Article |
|---|---|
| Official URL/DOI: | https://10.1016/j.matlet.2023.135107 |
| Uncontrolled Keywords: | Deformation and fracture, Microstructure, Super304H, In -situ testing, Intergranular corrosion, T91 |
| Divisions: | Material Science and Technology |
| ID Code: | 9402 |
| Deposited By: | HOD KRIT |
| Deposited On: | 03 Oct 2023 15:48 |
| Last Modified: | 09 Nov 2023 15:03 |
| Related URLs: |
Repository Staff Only: item control page
