Study of the recrystallization and crystallographic texture evolution during final annealing of UNS 532304 Lean Duplex stainless steel

被引：22
作者：
Moura, A. N. [1 ]
Favarato, L. N. O. [2 ]
Itman Filho, A. [1 ]
Alcantara, C. M. [2 ]
Cunha, M. A. [3 ]
Oliveira, T. R. [2 ]
Machado, M. L. P. [1 ]
机构：
[1] Inst Fed Espirito Santo, Dept Mat & Met Engn, Ave Vitoria 1723, Jucutuquara, ES, Brazil
[2] Aperam South Amer Res Ctr, Praca 1 Maio,09 Ctr, Timoteo, MG, Brazil
[3] Ctr Univ Leste Minas Gerais, Ave Tancredo Neves 3500, Coronel Fabriciano, MG, Brazil
来源：
MATERIALS CHARACTERIZATION | 2017年 / 130卷
关键词：
Duplex stainless steel; Banded microstructure; Recrystallization; Texture; ELECTRON BACKSCATTER DIFFRACTION; MICROSTRUCTURAL EVOLUTION; IF-STEEL; R-VALUE; DEFORMATION; AUSTENITE; EBSD; FORMABILITY; BEHAVIOR; PHASES;
D O I：
10.1016/j.matchar.2017.05.025
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The banded microstructure effects on the texture and recrystallization evolution in UNS 532304 Lean Duplex stainless steel was investigated by Electron Backscatter Diffraction (EBSD), hardness and microhardness measurements. The annealed hot rolled band was cold rolled and annealed in the laboratory with interruptions at temperatures ranging from 900 degrees C to 1050 degrees C and according to industrial process conditions. The experimental results indicated that the nucleation during recrystallization occurred at high angle grain boundaries and phase boundaries. The austenite recrystallized independently of the ferrite and showed typical deformation texture. The inexistence of transition from alpha-fiber to gamma-fiber and the prevalence of the recovery process in ferrite during annealing could be adequately explained by the presence of austenite lamellae acting as barriers to the growth of gamma-fiber recrystallized grains.
引用
收藏
页码：39 / 49
页数：11
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