Experiments on deformation behaviour of functionally graded NiTi structures
Bashir S. Shariat,
Qinglin Meng,
Abdus S. Mahmud,
Zhigang Wu,
Reza Bakhtiari,
Junsong Zhang,
Fakhrodin Motazedian,
Hong Yang,
Gerard Rio,
Tae-hyun Nam,
Yinong Liu
Affiliations
Bashir S. Shariat
Laboratory for Functional Materials, School of Mechanical and Chemical Engineering, The University of Western Australia, Crawley, WA 6009, Australia; Corresponding author.
Qinglin Meng
Laboratory for Functional Materials, School of Mechanical and Chemical Engineering, The University of Western Australia, Crawley, WA 6009, Australia
Abdus S. Mahmud
Laboratory for Functional Materials, School of Mechanical and Chemical Engineering, The University of Western Australia, Crawley, WA 6009, Australia; School of Mechanical Engineering, University Sains Malaysia, 11800 Gelugor, Penang, Malaysia
Zhigang Wu
Laboratory for Functional Materials, School of Mechanical and Chemical Engineering, The University of Western Australia, Crawley, WA 6009, Australia
Reza Bakhtiari
Laboratory for Functional Materials, School of Mechanical and Chemical Engineering, The University of Western Australia, Crawley, WA 6009, Australia
Junsong Zhang
Laboratory for Functional Materials, School of Mechanical and Chemical Engineering, The University of Western Australia, Crawley, WA 6009, Australia
Fakhrodin Motazedian
Laboratory for Functional Materials, School of Mechanical and Chemical Engineering, The University of Western Australia, Crawley, WA 6009, Australia
Hong Yang
Laboratory for Functional Materials, School of Mechanical and Chemical Engineering, The University of Western Australia, Crawley, WA 6009, Australia
Gerard Rio
Laboratoire d’Ingénierie des Matériaux de Bretagne, Université de Bretagne Sud, Université Européenne de Bretagne, BP 92116, 56321 Lorient cedex, France
Tae-hyun Nam
School of Materials Science and Engineering & RIGET, Gyeongsang National University, 900 Gazwadong, Jinju, Gyeongnam 660-701, Republic of Korea
Yinong Liu
Laboratory for Functional Materials, School of Mechanical and Chemical Engineering, The University of Western Australia, Crawley, WA 6009, Australia
Functionally graded NiTi structures benefit from the combination of the smart properties of NiTi and those of functionally graded structures. This article provides experimental data for thermomechanical deformation behaviour of microstructurally graded, compositionally graded and geometrically graded NiTi alloy components, related to the research article entitled “Functionally graded shape memory alloys: design, fabrication and experimental evaluation” (Shariat et al., 2017) [1]. Stress–strain variation of microstructurally graded NiTi wires is presented at different heat treatment conditions and testing temperatures. The complex 4-way shape memory behaviour of a compositionally graded NiTi strip during one complete thermal cycle is demonstrated. The effects of geometrical design on pseudoelastic behaviour of geometrically graded NiTi plates over tensile loading cycles are presented on the stress–strain diagrams. Keywords: Shape memory alloy (SMA), NiTi, Martensitic transformation, Functionally graded material (FGM), Pseudoelasticity, Heat treatment
