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Journal of Materials Engineering and Performance
Erschienen in: Journal of Materials Engineering and Performance 7/2015

01.07.2015

Evolution of Dislocation Density During Tensile Deformation of BH220 Steel at Different Pre-strain Conditions

verfasst von: Prem Prakash Seth, A. Das, H. N. Bar, S. Sivaprasad, A. Basu, K. Dutta

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 7/2015

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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.
Vorheriger Artikel Wear Properties of Hot-Extruded Pure Mg and Mg-1 wt.% SiC Nanocomposite
Nächster Artikel Creep Damage Evaluation in High-Pressure Rotor Based on Hardness Measurement

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Metadaten
Titel
Evolution of Dislocation Density During Tensile Deformation of BH220 Steel at Different Pre-strain Conditions
verfasst von
Prem Prakash Seth
A. Das
H. N. Bar
S. Sivaprasad
A. Basu
K. Dutta
Publikationsdatum
01.07.2015
Verlag
Springer US
Erschienen in
Journal of Materials Engineering and Performance / Ausgabe 7/2015
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-015-1554-6

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