Orientation-dependent crack-tip blunting and crack propagation in a single crystal BCC iron
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
View Archive Info| Field | Value | |
| Title |
Orientation-dependent crack-tip blunting and crack propagation in a single crystal BCC iron
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| Creator |
Paul, Surajit Kumar
Kumar, Sunil Tarafder, S |
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| Subject |
Crystallography
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| Description |
Atomistic simulations of cracks with four different orientations in body-centered cubic single crystal iron
are presented using molecular dynamics. Crystal orientation has considerable effect on the activation and evolution of crack propagation mechanisms. The results reveal that (a) crack-tip blunting depends on the crystallographic orientation, (b) continuous generation of dislocations form crack tip occurs for large crack-tip blunting, and (c) absence of deformation activities like dislocation generation, twin formation, etc. at the crack tip results in crack propagation in a brittle manner.
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| Publisher |
Indian Acad Sciences
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| Date |
2018
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| Type |
Article
PeerReviewed |
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| Relation |
https://doi.org/10.1007/s12034-018-1661-8
http://eprints.nmlindia.org/7893/ |
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| Identifier |
Paul, Surajit Kumar and Kumar, Sunil and Tarafder, S (2018) Orientation-dependent crack-tip blunting and crack propagation in a single crystal BCC iron. Bulletin of Material Science, 41(6) (IF-1.264). pp. 1-6.
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