Recent advances in multicomponent NiTi-based shape memory alloy using metallic glass as a precursor

WC Kim, KR Lim, WT Kim, ES Park, DH Kim - Progress in Materials Science, 2022 - Elsevier
Recently, concept for an alloy having both glass forming ability and shape memory
characteristics has been newly introduced based on the excellent functional properties of …

Shape memory behavior of NiTiHf alloys fabricated by selective laser melting

GP Toker, M Nematollahi, SE Saghaian… - Scripta Materialia, 2020 - Elsevier
This study investigates the high-temperature shape memory behavior of NiTiHf alloys
fabricated via selective laser melting process. Specifically, the effects of laser power (100 W …

Loading frequency and temperature-dependent damping capacity of NiTiHfPd shape memory alloy

GP Toker, S Saedi, E Acar, OE Ozbulut… - Mechanics of Materials, 2020 - Elsevier
Superelastic shape memory alloys with ultra-high-strength, large mechanical hysteresis, and
the ability to recover large deformations are promising materials for damping applications. In …

Development of Ni–Ti–Zr–Hf–(Nb, Ta) Multi-Principal Element High-Temperature Shape Memory Alloys with High Cold Workability

W Tasaki, Y Arai, S Miyazaki, HY Kim - Materials Transactions, 2023 - jstage.jst.go.jp
Abstract Novel Ni–Ti–Zr–Hf–Nb and Ni–Ti–Zr–Hf–Ta high temperature shape memory alloys
with multi-principal elements were developed, and differences in the effects of Nb and Ta on …

High temperature shape memory behavior of Ni47. 3Ti29. 7Hf20Pd3 alloys

E Acar, GP Toker, H Kurkcu, HE Karaca - Intermetallics, 2019 - Elsevier
The shape memory properties of Ni 47.3 Ti 29.7 Hf 20 Pd 3 alloys were investigated through
stress-free thermal cycling, constant-stress thermal cycling and constant-temperature stress …

Shape memory effect in quaternary NiTiHfPd shape memory alloys beyond 200° C

S Saedi, GP Toker, H Raji, E Acar, F Watanabe… - Journal of Materials …, 2022 - Springer
In this study, the effects of minor palladium (3 and 5 at.%) addition to ternary NiTiHf shape
memory alloy (SMA) were investigated to design a high-temperature NiTiHfPd SMA. While …

A comparative study of the microstructure and shape memory behaviour of NiTi, NiTiHf, and Pt-added NiTiHf alloys

MS Mohan, KV Ramaiah, CN Saikrishna… - Physica …, 2024 - iopscience.iop.org
The microstructure, substructure, transformation temperature, and recovery ratio of a novel
Ni 45 Pt 5 Ti 30 Hf 20 alloy are reported in the current work. The properties of binary TiNi …

Post-aging cooling rate effects in Ni45. 3Ti34. 7Hf15Pd5 shape memory alloys

E Acar, S Saedi, GP Toker, H Tobe… - Materials Research Bulletin, 2021 - Elsevier
Abstract Effects of post-aging cooling rate (water quenched, WQ, and furnace cooled, FC) on
the shape memory properties of polycrystalline Ni 45.3 Ti 34.7 Hf 15 Pd 5 alloys were …

Mechanical and shape-memory behavior of homogenized NiTiHfPd alloys

E Acar - Proceedings of the Institution of Mechanical …, 2023 - journals.sagepub.com
Mechanical behavior of a Ni45. 3Ti34. 7Hf15Pd5 (at.%) alloy was systematically analyzed
after homogenization treatment at 1050° C for 4 h. Shape-memory behavior under a wide …

Thermo-mechanical Characterization of an Aged Ni45.3Ti39.7Hf10Pd5 Shape Memory Alloy

E Acar, GP Toker, S Saedi, H Tobe, HE Karaca - JOM, 2021 - Springer
Thermo-mechanical characterization of a Ni 45.3 Ti 39.7 Hf 10 Pd 5 polycrystalline shape
memory alloy after aging at 550° C for 3 h was conducted. Thermal cycling under constant …