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ND//< 111 > Recrystallization in Interstitial Free Steel: The Defining Role of Growth Inhibition

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Title ND//< 111 > Recrystallization in Interstitial Free Steel: The Defining Role of Growth Inhibition
 
Creator KHATIRKAR, R
VADAVADAGI, B
HALDAR, A
SAMAJDAR, I
 
Subject IF steel
recrystallization
deformation
texture
stored energy
orientation pinning
lankford constant
LOW-CARBON STEELS
ULTRA-LOW CARBON
MODELING TEXTURE CHANGE
IF-STEEL
STATIC RECRYSTALLIZATION
STRAIN LOCALIZATIONS
ANNEALING TEXTURES
PARTICLE-SIZE
GAMMA-FIBER
KINETICS
 
Description Hot band, fully recrystallized, interstitial free (IF) steel samples were cold rolled to 10-80% thickness reductions. After characterizing the developments in deformed microstructures, 50-80% deformed samples were fully recrystallized at 650 degrees C. Though different annealing times were used, use of a relatively lower annealing temperature and repeated trials ascertained absence of significant post-recrystallization grain coarsening. Recrystallization brought in a steady improvement in gamma-fibre (ND//< 111 >) and drop in theta-fibre (ND//< 100 >). The only exception was 80% prior deformed microstructure, where the trend was reversed: enforcing a drop in texture estimated normal anisotropy or (r) over bar value. The study brought out growth inhibition of recrystallized gamma-fibre grains, caused by non-gamma fibre bands and by orientation pinning of recrystallized gamma-gamma boundaries, as the mechanism behind the observed trend reversal.
 
Publisher IRON STEEL INST JAPAN KEIDANREN KAIKAN
 
Date 2014-10-16T06:32:38Z
2014-10-16T06:32:38Z
2012
 
Type Article
 
Identifier ISIJ INTERNATIONAL, 52(5)894-901
http://dspace.library.iitb.ac.in/jspui/handle/100/15442
 
Language en