Seth, P P and Das, Arpan and Bar, H N and Sivaprasad, S and Basu, A and Dutta, K (2015) Evolution of Dislocation Density During Tensile Deformation of BH220 Steel at Different Pre-strain Conditions. Journal of Materials Engineering and Performance, 24(7) (IF-0.998). pp. 2779-2783.
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Abstract
Tensile behavior of BH220 steel with different pre-strain conditions (2 and 8%) followed by bake hardening was studied at different strain rates (0.001 and 0.1/s). Dislocation densities of the deformed specimens were successfully estimated from x-ray diffraction profile analysis using the modified Williamson-Hall equation. The results indicate that other than 2% pre-strain the dislocation density increases with increase in pre-strain level as well as with strain rate. The decrease in the dislocation density in 2% pre-strain condition without any drop in strength value is attributed to the characteristic dislocation feature formed during pre-straining.
| Item Type: | Article |
|---|---|
| Official URL/DOI: | http://apps.webofknowledge.com/full_record.do?prod... |
| Uncontrolled Keywords: | :bake hardening; BH220 steel; dislocation density; low-energy dislocation structure; pre-strain; x-ray diffraction |
| Divisions: | Material Science and Technology |
| ID Code: | 7260 |
| Deposited By: | Sahu A K |
| Deposited On: | 07 Aug 2015 12:06 |
| Last Modified: | 07 Aug 2015 12:06 |
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