Ray, A and Sivaprasad, S and Chakrabarti, D (2012) A critical grain size concept to predict the impact transition temperature of Ti-microalloyed steels. International of Fracture, 173(2). pp. 215-222.
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Abstract
Based on the assumption that local principal stress remains the same everywhere within a ferrite grain, a critical value of grain size can be determined for a fixed TiN particle
size. When the grain size is smaller than the critical size, grain boundary is expected to resist the propagation of a micro-crack that is initiated from a TiN particle. Using this concept, an attempt has been made to predict the local cleavage fracture stress and 27J impact transition
temperature (ITT) of different Ti-microalloyed steels, which were subjected to (instrumented) Charpy impact testing.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ductile-to- brittle transition, instrumented impact testing, TiN particle size, critical ferrite-grain size |
| Subjects: | Mechanical Engineering Materials Science > Materials Charcterization |
| Divisions: | Material Science and Technology |
| Depositing User: | Dr S Sivaprasad |
| Date Deposited: | 19 Mar 2012 04:53 |
| Last Modified: | 03 Sep 2026 06:17 |
| URI: | http://eprints.nmlindia.org/id/eprint/4946 |
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