ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Effect of microstructural boundaries of low-carbon lath martensitic steel in cleavage fracture resistance

Chatterjee, A and Ghosh, A and Mitra, R and Chakrabarti, D (2017) Effect of microstructural boundaries of low-carbon lath martensitic steel in cleavage fracture resistance. In: 14th International Conference on Fracture, ICF 2017, 18 - 20 June 2017, Rhodes, pp. 483-484.

Full text not available from this repository.
Official URL: https://doi.org/10.1179/174328005X41140


Cleavage crack propagation has been investigated in a low-carbon lath-martensitic steel using electron back-scattered diffraction technique. The ability of different martensitic boundaries within prior-austenite grain, such as sub-block, block and packet boundaries to resist cleavage crack propagation has been estimated in terms of Kurdjumov-Sachs crystallographic variants. Crystallographic study of crack path indicated that block boundaries are more effective in cleavage crack deviation as compared to packet boundaries, whilst sub-block boundaries are ineffective in that respect. Moreover, characterizing the boundaries in terms of misorientation angle (angle-axis pair) may be misleading, if used to identify their effectiveness in retarding cleavage crack propagation.

Item Type: Conference Paper
Publication: ICF 2017 - 14th International Conference on Fracture
Publisher: International Conference on Fracture
Additional Information: The copyright for this article belongs to International Conference on Fracture.
Keywords: Crack propagation; Cracks; Fracture; Martensitic stainless steel, Block boundaries; Crystallographic studies; Crystallographic variants; Electron back scattered diffraction techniques; Lath martensitic steels; Micro-structural; Misorientation angle; Prior austenite grains, Low carbon steel
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 18 Jul 2022 04:56
Last Modified: 18 Jul 2022 04:56
URI: https://eprints.iisc.ac.in/id/eprint/74629

Actions (login required)

View Item View Item