Journal article
Defining a relationship between pearlite morphology and ferrite crystallographic orientation
Acta materialia, v 129, pp 278-289
01 May 2017
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This study involved fully pearlitic wires of seven different diameters (5.5–1.6 mm). All samples were laboratory annealed to re-austenitize and were then air-cooled to reform the pearlite structure. Morphological alignment of the pearlite, along the wire axis, improved significantly, 32% to 93%, as the wire diameter decreased. This improvement coincided with increases in the ferrite fiber texture, and falls in the axial residual stresses. In all the wires, the majority of the pearlite lamellae appeared to align, in a 2-D analysis, with minimum elastic stiffness (EMin under simple compression) for the ferrite (α). This correlation increased from 80% to 98% with decrease in wire diameter and fall in axial residual stresses. 3-D microstructures by serial sectioning, 3-D rotations seeking EMin and observations on coarse pearlite, indicated that {011}α and α were, respectively, the pearlite interface (or habit plane) and growth direction.
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Details
- Title
- Defining a relationship between pearlite morphology and ferrite crystallographic orientation
- Creators
- A. Durgaprasad - Indian Institute of Technology BombayS. Giri - Indian Institute of Technology BombayS. Lenka - Tata SteelS. Kundu - Tata SteelS. Mishra - Indian Institute of Technology BombayS. Chandra - Tata SteelR.D. Doherty - Drexel UniversityI. Samajdar - Indian Institute of Technology Bombay
- Publication Details
- Acta materialia, v 129, pp 278-289
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:000400033900027
- Scopus ID
- 2-s2.0-85014615443
- Other Identifier
- 991019167995804721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Metallurgy & Metallurgical Engineering