A combined model of oriented nucleation and selective growth for the recrystallization of interstitial-free steels

Journal Article · Fri Sep 01 04:00:00 EDT 1995 · Metallurgical Transactions, A

DOI:https://doi.org/10.1007/BF02671253· OSTI ID:116050

Gangli, P; Jonas, J J ^[1]; Urabe, Toshiaki ^[2]

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1. McGill Univ., Montreal, Quebec (Canada). Dept. of Metallurgical Engineering
2. NKK Corp., Kawasaki (Japan)

A combined model of oriented nucleation and selective growth is proposed to describe primary recrystallization in interstitial-free (IF) steels. The model includes oriented nucleation at high Taylor-factor orientations together with orientation transformations (OTs) about selected <110> axes over a misorientation range that includes the {Sigma}9, {Sigma}11, {Sigma}19a, and {Sigma}33a type coincidence site lattice (CSL) relationships. It is shown that only one or two of the six possible <110> rotation axes operate in a given grain and at a particular grain boundary. These are the ones closest to the maximum shear stress (MSS) poles for cold rolling. The present study suggests that IF steels display particularly sharp textures (compared to plain C steels), because the factors that favor the selection of the transformation axes and the more rapid growth of CSL boundaries operate more effectively in these materials.

• Sponsoring Organization: USDOE
• OSTI ID: 116050
• Journal Information: Metallurgical Transactions, A, Journal Name: Metallurgical Transactions, A Journal Issue: 9 Vol. 26; ISSN 0360-2133; ISSN MTTABN
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ADDITIONS
GRAIN BOUNDARIES
GRAIN GROWTH
MANGANESE ADDITIONS
MATHEMATICAL MODELS
NIOBIUM ADDITIONS
NUCLEATION
ORIENTATION
PHASE TRANSFORMATIONS
RECRYSTALLIZATION
SILICON ADDITIONS
STEELS
TEXTURE
TITANIUM ADDITIONS