scholarly journals Texture evolution of cold rolled and reversion annealed metastable austenitic CrMnNi steels

Author(s):  
A Weidner ◽  
K Fischer ◽  
C Segel ◽  
G Schreiber ◽  
H Biermann
1997 ◽  
Vol 28 (3-4) ◽  
pp. 211-218 ◽  
Author(s):  
V. Marx ◽  
D. Raabe ◽  
O. Engler ◽  
G. Gottstein

In this study both primary static recrystallization and static recovery of cold rolled bcc and fcc metals and alloys are numerically simulated using a three-dimensional model that is based on a modified cellular automaton approach. The model considers the influence of the initial deformation texture and microstructure on both static recovery and primary static recrystallization with a high spatial resolution. The cellular automat technique provides both local and statistical information about the kinetics, the morphology and the texture change during annealing. The influence of nucleation and growth can be studied in detail. The simulations are compared to experimental results obtained on fcc and bcc polycrystals.


2013 ◽  
Vol 203-204 ◽  
pp. 71-76
Author(s):  
Sławomir Kołodziej ◽  
Joanna Kowalska ◽  
Wiktoria Ratuszek ◽  
Wojciech Ozgowicz ◽  
Krzysztof Chruściel

The aim of this work was the microstructure and texture analysis of a deformed via cold-rolling 24.5Mn-3.5Si-1.5Al-Ti-Nb TWIP/TRIP type steel. It was found, that during cold plastic deformation a phase transformation of austenite into martensite takes place. The transformation progress was confirmed by the microscopic investigations. The texture of austenite is characterized by a limited α1=||RD fibre and the γ=||ND fibre. The texture of austenite changed with increasing deformation rate. In the texture of deformed austenite the strongest orientation is the {110} Goss orientation, which belongs to the α=||ND orientation fibre. During cold plastic deformation γ→ε and γ→ε→α’ phase transformations as well as the deformation of γ, ε and α’ phases are taking place in the steel. The formed ε phase (hexagonal structure) also possesses a distinct texture.


2011 ◽  
Vol 306-307 ◽  
pp. 116-119
Author(s):  
Masahiko Demura ◽  
Ya Xu ◽  
Toshiyuki Hirano

This article presents the texture evolution and the ductility improvement of the cold-rolled foils of boron-free Ni3Al during the recrystallization and the subsequent grain growth. The cold-rolled foils had sharp {110} textures. After the recrystallization at 873K/0.5h, the texture was disintegrated with several texture components. Interestingly, most of them had a single rotation relationship. i.e. 40˚ around <111>. With the progress of the grain growth, however, the texture returned to the sharp, cold-rolled textures. This two-stage texture evolution, called as “Texture memory effect”, was explained assuming a high mobility of the grain boundary with the 40˚<111> rotation relationship. The texture returning was highly effective to improve the ductility of the foils.


2016 ◽  
Vol 25 (5) ◽  
pp. 1931-1938 ◽  
Author(s):  
Haitao Jiang ◽  
Peng Dong ◽  
Shangwu Zeng ◽  
Bo Wu

Metals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1380
Author(s):  
Sofia Papadopoulou ◽  
Athina Kontopoulou ◽  
Evangelos Gavalas ◽  
Spyros Papaefthymiou

During forming, thickness reduction and thermal treatment affect the recrystallization and evolution of the crystallographic texture of metallic materials. The present study focuses on the consequences of rolling reduction of a widespread aluminum alloy with numerous automotive, marine and general-purpose applications, namely Al 5182. Emphasis is laid on the crystallographic texture and mechanical properties on both hot and cold-rolled semi-final products. In particular, a 2.8 mm-thick hot-rolled product was examined in the as-received condition, while two cold-rolled sheets, one 1.33 mm and the other 0.214 mm thick, both originating from the 2.8 mm material, were examined in both as-received and annealed (350 °C for 1 h) conditions. Electron back-scatter diffraction indicated the presence of a large percentage of random texture as well as a weak recrystallization texture for the hot-rolled product, whereas in the case of cold rolling the evolution of β-fiber texture was noted. In addition, tensile tests showed that both the anisotropy as well as the mechanical properties of the cold-rolled properties improved after annealing, being comparable to hot-rolled ones.


2020 ◽  
Vol 169 ◽  
pp. 110591
Author(s):  
M.R. Kamali ◽  
A.R. Mashreghi ◽  
L.P. Karjalainen ◽  
S. Hasani ◽  
V. Javaheri ◽  
...  

2012 ◽  
Vol 557-559 ◽  
pp. 191-197 ◽  
Author(s):  
Yun Xue Jin ◽  
Kai Yue Li ◽  
Hong Mei Chen ◽  
Hong Fu Xiang

In this paper, initial Ti-6Al-4V seamless tube was prepared and cold rolled to a final size of 32*2, and the microstructure and mechanical properties development was investigated, and the (0002) and (10 -10) texture was measured on XRD, pole figure calculated by Microsoft of Labotex. Pass between annealing was taken for stress-relieving, heat-treatment parameter was 800°C-1hr, furnace cooling to 500°C and then air cooling to room temperature. The results show that rolling process result in effective grain refinement and mechanical properties improvement after several rolling passes. The increase number of rolling pass improves strength but reduce the elongation, annealing improve elongation, reduce strength. A trend of texture reorientation was found in this paper also, textures of materials rolled by deformation rate were compared, different deformation rate effect texture evolution has been proved.


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