A COMBINED MODEL OF ORIENTED NUCLEATION AND SELECTIVE GROWTH FOR THE RECRYSTALLIZATION OF INTERSTITIAL-FREE STEELS

被引：17

作者：

GANGLI, P ^{[1
]}

JONAS, JJ ^{[1
]}

URABE, T ^{[1
]}

机构：

[1] NKK CORP,MAT & PROC RES CTR,KEIHIN RES DEPT,KAWASAKI,KANAGAWA 210,JAPAN

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1995年 / 26卷 / 09期

关键词：

D O I：

10.1007/BF02671253

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：2399 / 2406

页数：8

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