TY - JOUR
T1 - Post-machining characterization of novel Ni55.65Ti-SMA via electric discharge machining route
AU - Faheem, Abdul
AU - Hasan, Faisal
AU - Khan, Abid Ali
AU - Shamim, Farhan Ahmad
AU - Alam, Mohammad Azad
AU - Raja, Sufian
AU - Arif, Sajjad
AU - Husain, Afsar
AU - Khan, Sanan H.
N1 - Publisher Copyright:
© 2025
PY - 2025/3
Y1 - 2025/3
N2 - Nickel-titanium-based shape memory alloys (SMAs) belong to an exclusive class of intelligent materials endowed with exceptional characteristics, including superelasticity, wear and corrosion resistance, and shape memory effects, making them well-suited for applications in biomedical, composite structures, aerospace, etc. This research delves into a comprehensive investigation of the post-machining characterization of Ni55.65Ti-SMA through electric discharge machining (EDM). The post-machining aspects of the Ni55.65Ti-SMA offered detailed insights into the surface morphology, recast layer thickness, surface hardness, and shape memory effect. It has been investigated that both the RLT and surface hardness are significantly influenced by peak current and pulse time ON and range from 7.09 to 11.85 μm and 84 to 94 HBR, respectively. The composition variations across EDMed Ni55.65Ti-SMA surfaces, was conducted using EDS and elemental mapping techniques. In addition, XRD was employed to scrutinize the structural alterations resulting from the machining process. DSC analysis encapsulated the post-machining shape-memory effect of Ni55.65Ti-SMA. This study provides valuable insights into the intricate relationship between the EDM process parameters and the resulting surface microstructures of Ni55.65Ti-SMA. Comprehensive characterization using advanced techniques enhances the understanding of material transformation during machining.
AB - Nickel-titanium-based shape memory alloys (SMAs) belong to an exclusive class of intelligent materials endowed with exceptional characteristics, including superelasticity, wear and corrosion resistance, and shape memory effects, making them well-suited for applications in biomedical, composite structures, aerospace, etc. This research delves into a comprehensive investigation of the post-machining characterization of Ni55.65Ti-SMA through electric discharge machining (EDM). The post-machining aspects of the Ni55.65Ti-SMA offered detailed insights into the surface morphology, recast layer thickness, surface hardness, and shape memory effect. It has been investigated that both the RLT and surface hardness are significantly influenced by peak current and pulse time ON and range from 7.09 to 11.85 μm and 84 to 94 HBR, respectively. The composition variations across EDMed Ni55.65Ti-SMA surfaces, was conducted using EDS and elemental mapping techniques. In addition, XRD was employed to scrutinize the structural alterations resulting from the machining process. DSC analysis encapsulated the post-machining shape-memory effect of Ni55.65Ti-SMA. This study provides valuable insights into the intricate relationship between the EDM process parameters and the resulting surface microstructures of Ni55.65Ti-SMA. Comprehensive characterization using advanced techniques enhances the understanding of material transformation during machining.
KW - EDS
KW - Elemental mapping
KW - NiTi-SMA
KW - Recast layer
KW - SEM
KW - Shape memory effect
KW - XRD
UR - https://www.scopus.com/pages/publications/85214315580
UR - https://www.scopus.com/pages/publications/85214315580#tab=citedBy
U2 - 10.1016/j.rineng.2025.103917
DO - 10.1016/j.rineng.2025.103917
M3 - Article
AN - SCOPUS:85214315580
SN - 2590-1230
VL - 25
JO - Results in Engineering
JF - Results in Engineering
M1 - 103917
ER -