Texture, microstructure and mechanical properties evolution in Fe-x (x = 36 and 48 wt.%) Ni alloy after accumulative roll bonding

18th International Conference on Textures of Materials

材料科学;物理学

Boudekhani-Abbas, S.^1 ; Tirsatine, K.^1 ; Azzeddine, H.^1,2 ; Alili, B.^1 ; Helbert, A.L.^3 ; Brisset, F.^3 ; Baudin, T.^3 ; Bradai, D.^1

Faculty of Physics, University of Sciences and Technology Houari Boumediene, BP 32, El-Alia

16111, Algeria^1

Departments of Physics, University Mohamed Boudiaf, BP 166, M'Sila Algeria

28000, Algeria^2

ICMMO, SP2M, Univ. Paris-Sud, Université Paris-Saclay, UMR CNRS 8182, Orsay, Cedex

91405, France^3

关键词: Accumulative roll bonding;    Deformation conditions;    Electron back scatter diffraction;    Microhardness measurement;    Microstructure and mechanical properties;    Stacking fault energies;    Texture evolutions;    Vickers microhardness;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/375/1/012034/pdf
DOI  :  10.1088/1757-899X/375/1/012034

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The texture, microstructure and Vickers microhardness evolution of Fe-36Ni and Fe-48Ni (wt. %) alloys processed by accumulative roll-bonding (ARB) up to 6 cycles were investigated using Electron Back Scatter Diffraction (EBSD) and microhardness measurements. Both alloys underwent a substantial grain refinement. Grains were of elongated shape parallel to the rolling direction and slightly smaller for Fe-48Ni alloy. Both alloys exhibit a different texture evolution upon straining influenced by the deformation conditions. The microhardness of both alloys also showed the same trends up to 6 cycles and Fe-48Ni alloy has higher strength than Fe-36Ni alloy. These differences were mainly ascribed to the deformation conditions, solute pinning and stacking fault energy.