Effects of Ni and Cr addition on the wear performance of NiTi alloy

Waqar, Salman; Wadood, Abdul; Mateen, Abdul; Rehman, Muhammad Atiq Ur

doi:10.1007/s00170-020-05380-0

Cited by 15 publications

(6 citation statements)

References 13 publications

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“…Equations 3 and 4 are used to calculate the friction coefficient and sliding distance in the sliding wear test [49,50]. Sliding wear tests were carried out on the sample to understand the wear behaviour of NiTiFe alloy.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of nickel-titanium-iron shape memory alloys by powder metallurgy route and analyses of their physical and mechanical behaviour

et al. 2023

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In this research work, the effect of Fe additions on the phase evolution, microstructure, chemical composition, transformation behaviour and properties of Ni (50−X) Ti 50 Fe X shape memory alloys has been investigated. The elemental Ti, Ni and Fe mixed powders are compacted at 600 MPa, followed by sintering at 1100°C for 4hr in an Ar atmosphere. Phase analysis and microstructural studies confirmed the presence of the NiTi phase besides other Ni-rich and Ti-rich phases. The 8at.-% Fe sample shows higher relative density, lower porosity, higher hardness, higher elastic modulus and higher wear resistance owing to the presence of a higher amount of secondary intermetallic phases compared to other composition samples. Interestingly, the 4at.-% Fe sample has a higher percentage of NiTi (B19') phase and shows a better shape memory effect and elastic recovery than other composition samples. FESEM morphology of worn surface explained various wear mechanisms with respect to shape memory behaviour.

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Section: Resultsmentioning

confidence: 99%

Fabrication of nickel-titanium-iron shape memory alloys by powder metallurgy route and analyses of their physical and mechanical behaviour

et al. 2023

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“…The wear loss in the material depends on the operating parameters like sliding speed, normal load, environment, and temperature) and surface parameters like microstructure, hardness, surface finish, strength, and fracture toughness [40]. Equations (2) and (3) are used to determine the friction coefficient and sliding distance in the sliding wear test [41,42]. where F , P , A , S , R , t , and r are the frictional force, normal load, contact area, shearing stress, revolution per minute by the ball on a sample surface, time, and track radius, respectively.…”

Section: Resultsmentioning

confidence: 99%

Section: Wear Behaviourmentioning

confidence: 99%

Effect of Fe addition on phase evolution, microstructure and properties of Ti₅₀Ni_50-XFe_X alloy

Parida

Mishra

Behera

2023

Materials Science and Technology

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The work aims to study the effect of the Fe content on the properties of Ti50 Ni(50− X) Fe X alloy (where X = 0, 2, 4, 6, 8, and 10 at.-%) sintered at 1050°C and 1150°C using the conventional sintering technique. The microstructure, chemical composition and phase evolution of the sample were analysed by SEM, EDS, and XRD, respectively, along with various properties. It was observed that the sintered sample microstructure consists of (Ni, Fe)-rich, and Ti-rich phases. Here, the porosity decreases, whereas density, hardness, and wear resistance increase with the increasing temperature. The 8at.-%Fe sample shows lower porosity and higher wear resistance, relative density and hardness value than other Fe content samples. The 2at.-%Fe sample sintered at 1050°C shows a higher shape recovery value compared to other compositions sintered at various temperatures.

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“…A transfer layer is formed due to the accumulation of the wear debris around the wear track, leading to abrasive wear. Later, COF lowered and became constant again throughout the partial distance, which means that the coating deposited at higher voltage displayed sufficient resistance to wear [ 51 ]. The average wear rate of zein/Ag-Sr doped MBGN coatings was calculated to be 0.179 mm 3 /Nm, which shows adequate wear resistance for a biocompatible implant [ 52 ].…”

Section: Resultsmentioning

confidence: 99%

Development and Characterization of Zein/Ag-Sr Doped Mesoporous Bioactive Glass Nanoparticles Coatings for Biomedical Applications

et al. 2022

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Implants are used to replace damaged biological structures in human body. Although stainless steel (SS) is a well-known implant material, corrosion of SS implants leads to the release of toxic metallic ions, which produce harmful effects in human body. To prevent material degradation and its harmful repercussions, these implanted materials are subjected to biocompatible coatings. Polymeric coatings play a vital role in enhancing the mechanical and biological integrity of the implanted devices. Zein is a natural protein extracted from corn and is known to have good biocompatibility and biodegradability. In this study, zein/Ag-Sr doped mesoporous bioactive glass nanoparticles (Ag-Sr MBGNs) were deposited on SS substrates via electrophoretic deposition (EPD) at different parameters. Ag and Sr ions were added to impart antibacterial and osteogenic properties to the coatings, respectively. In order to examine the surface morphology of coatings, optical microscopy and scanning electron microscopy (SEM) were performed. To analyze mechanical strength, a pencil scratch test, bend test, and corrosion and wear tests were conducted on zein/Ag-Sr doped MBGN coatings. The results show good adhesion strength, wettability, corrosion, and wear resistance for zein/Ag-Sr doped MBGN coatings as compared to bare SS substrate. Thus, good mechanical and biological properties were observed for zein/Ag-Sr doped MBGN coatings. Results suggested these zein/Ag-Sr MBGNs coatings have great potential in bone regeneration applications.

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Effects of Ni and Cr addition on the wear performance of NiTi alloy

Cited by 15 publications

References 13 publications

Fabrication of nickel-titanium-iron shape memory alloys by powder metallurgy route and analyses of their physical and mechanical behaviour

Fabrication of nickel-titanium-iron shape memory alloys by powder metallurgy route and analyses of their physical and mechanical behaviour

Effect of Fe addition on phase evolution, microstructure and properties of Ti₅₀Ni_50-XFe_X alloy

Development and Characterization of Zein/Ag-Sr Doped Mesoporous Bioactive Glass Nanoparticles Coatings for Biomedical Applications

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Effects of Ni and Cr addition on the wear performance of NiTi alloy

Cited by 15 publications

References 13 publications

Fabrication of nickel-titanium-iron shape memory alloys by powder metallurgy route and analyses of their physical and mechanical behaviour

Fabrication of nickel-titanium-iron shape memory alloys by powder metallurgy route and analyses of their physical and mechanical behaviour

Effect of Fe addition on phase evolution, microstructure and properties of Ti50Ni50-XFeX alloy

Development and Characterization of Zein/Ag-Sr Doped Mesoporous Bioactive Glass Nanoparticles Coatings for Biomedical Applications

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Effect of Fe addition on phase evolution, microstructure and properties of Ti₅₀Ni_50-XFe_X alloy