Effects of Solution and Aging Treatments on Corrosion Resistance of As-cast 60NiTi Alloy

Qin, Qiuhui; Wen, Yuhua; Wang, Gaixia; Zhang, Lanhui

doi:10.1007/s11665-016-2402-z

Cited by 28 publications

(5 citation statements)

References 15 publications

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“…Vandenkerhove [48] et al reported that a nickel-titanium alloy containing mainly NiTi phase showed a lower corrosion intensity. In this study, (Ni, Fe) 3 Ti shows a large electrode potential with (Ni, Fe)Ti [6], and the proportion of (Ni, Fe) 3 Ti is higher in 60Ni-40Ti, which explains why the corrosion resistance of 60Ni-40Ti slightly deteriorated. In addition, due to its higher dilution rate, more elements such as Fe and Cr diffuse in the substrate.…”

Section: Sample R S (ω•Cmmentioning

confidence: 59%

“…Khanlari [5] et al showed that the hardness of 56~62 HRC and friction coefficient of 0.06 of 60NiTi alloy were similar to those of 440C bearing steel (Fe-0.95C-16Cr-0.75Mo, wt.%), while Young's modulus of 95 GPa was only half of that of 440C bearing steel. Qin [6] et al showed that the corrosion rate of 60NiTi in 3.5 wt% NaCl was about 1/1000 of that of 316 stainless steel (Fe-0.03C-17Cr-12Ni-2.5Mo, wt%).…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Powder Composition on the Microstructure and Corrosion Resistance of Laser Cladding 60NiTi Alloy Coatings on SS 316L

Feng

et al. 2021

Metals

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Two kinds of 60NiTi powders were prepared by pure Ni mixed with Ti powders, and 55NiTi alloy powder with pure Ni powder and both the powders were fully mixed by alcohol ball milling. Two kinds of coatings (denoted as 60Ni-40Ti and 55NiTi-5Ni) were prepared on a 316L stainless steel substrate by laser cladding. The microstructure, microhardness and electrochemical behavior of the prepared coatings were investigated extensively. The results show that 55NiTi-5Ni has a typical dendritic eutectic structure, but 60Ni-40Ti tends to form a eutectic network structure. The main phases in both coatings are (Ni, Fe)Ti and (Ni, Fe)3Ti; however, the (Ni, Fe)Ti phase is dominant in 55NiTi-5Ni, but the (Ni, Fe)3Ti phase is more prevalent in 60Ni-40Ti. The microhardness was significantly improved with the 316L stainless steel substrate, and the microhardness of 55NiTi-5Ni is slightly higher than 60Ni-40Ti. The corrosion resistance of the two coatings in 3.5 wt% NaCl solution also leads to significant improvements compared with the substrate, and the corrosion resistance of 55NiTi-5Ni was also increased. These different behaviors and characteristics might be related to the different microstructures. Uniform and fine eutectic structure in 55NiTi-5Ni coating lead to better performance, which is also conducive to the formation of the dense oxide film to improve corrosion resistance.

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Section: Sample R S (ω•Cmmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 99%

The Effect of Powder Composition on the Microstructure and Corrosion Resistance of Laser Cladding 60NiTi Alloy Coatings on SS 316L

Feng

et al. 2021

Metals

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“…solid-state and liquid-state techniques [15,16]. (1) The liquid state technique includes induction melting or arc melting process. This technique requires several times remelting to obtain homogeneous composition, and is vulnerable to the crucible and oxygen contamination.…”

Section: Introductionmentioning

confidence: 99%

“…aerospace, biomedical and engineering etc.) because of their superelasticity (SE), shape memory effect (SME), good corrosion resistance, good damping behaviour and good biocompatibility properties [1–5]. The SE and SME properties in the SMAs are an outcome of the transformation between the high-temperature austenite (B2) phase and the low-temperature martensite (B19’) phase.…”

Section: Introductionmentioning

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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“…60NiTi alloy (60wt%Ni, 40wt%Ti) has emerged as a strong candidate for new bearing materials due to its unique combination of properties, which includes low Young's modulus, high hardness, high strength, and high elasticity [1][2][3][4][5][6]. Compared to traditional bearing materials with high Young's modulus and hardness such as bearing steel, 60NiTi alloys have attracted the attention of bearing material researchers due to their equal range of hardness and excellent corrosion resistance [7][8][9][10][11][12][13][14][15][16][17][18]. The alloy has been reported to serve as a backup bearings material in the distillation centrifuges at the International Space Station [2,3,19].…”

Section: Introductionmentioning

confidence: 99%

Unraveling the Friction and Wear Characteristics of the High Hardness, Low Young's Modulus 60NiTi Alloy: A Synergistic FEM Simulation and Experimental Study

Yin,

Zheng,

et al. 2023

Preprint

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A finite element model of 60NiTi plate and Si3N4 ball (wear system) was established based on the discrete modified Archard model. The CSS-42L bearing steel with high Young's modulus was chosen as contrast material. The stress distribution, depth of wear marks, and wear rate were quantitatively analyzed to evaluate the feasibility of low Young's modulus of 60NiTi as bearing material. The FEM results revealed that the subsurface stress distribution exhibited a trend of first rising and then falling along the depth direction, and the peak stress position of 60NiTi alloy was found at about 100µm from the surface under a 30N load. The peak stress was reduced by 22.7% compared with the CSS-42L bearing steel at a 30N load, which demonstrating the superior load resistance of 60NiTi alloy. After undergoing friction and wear, the surface hardness of 60NiTi alloy was higher than the original hardness. Additionally, a significant increase in subsurface hardness was also observed due to same processes. Furthermore, the distribution and peak position of hardness along the depth direction was similar to the stress obtained from FEM, which indirectly confirmed the reliability of FEM simulation.

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Effects of Solution and Aging Treatments on Corrosion Resistance of As-cast 60NiTi Alloy

Cited by 28 publications

References 15 publications

The Effect of Powder Composition on the Microstructure and Corrosion Resistance of Laser Cladding 60NiTi Alloy Coatings on SS 316L

The Effect of Powder Composition on the Microstructure and Corrosion Resistance of Laser Cladding 60NiTi Alloy Coatings on SS 316L

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

Unraveling the Friction and Wear Characteristics of the High Hardness, Low Young's Modulus 60NiTi Alloy: A Synergistic FEM Simulation and Experimental Study

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