Anumola, R and Ravi Kumar, B and Misra, R D K and Mannering, T and Panda, D and Jansto, S G (2008) On the determining role of microstructure of niobium-microalloyed steels with differences in impact toughness. Materials Science and Engineering A, 491 (1-2). pp. 55-61.
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Abstract
The relationship between microstructure and impact toughness was investigated for niobium-microalloyed steels with similar yield strength. The nominal steel composition was similar and any variation in processing history was unintentional. The general microstructure of the investigated steel was similar and consisted of 85% polygonal ferrite and 15% pearlite. Despite these similarities, they exhibited variation in toughness and were classified as high- and low-toughness steels. Detailed microstructural investigation including stereological analysis and electron microscopy implied that toughness is strongly influenced by mean intercept length of polygonal ferrite and pearlite colony, and their distribution, interlamellar spacing, and degenerated pearlite.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Microalloyed steels; Impact toughness; Microstructure |
| Subjects: | Metallurgy > Steel Metallurgy |
| Divisions: | Material Science and Technology |
| Depositing User: | Users 6 not found. |
| Date Deposited: | 11 Nov 2009 03:54 |
| Last Modified: | 02 Sep 2026 05:55 |
| URI: | http://eprints.nmlindia.org/id/eprint/258 |
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