Functional Properties of the Multilayer NiTi Alloy Produced by Wire Arc Additive Manufacturing

Resnina, Natalia; Palani, I. A.; Belyaev, Sergey; Singh, Shalini; Kumar, Ajit; Bikbaev, Rashid; Sahu, Anshu

doi:10.1007/s40830-022-00359-0

Cited by 9 publications

(5 citation statements)

References 37 publications

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“…An increase in stress from 200 to 300 MPa increased the transformation temperatures according to Clausius-Clapeyron relation [1] but it hardly affected the variation in functional properties during thermal cycling. This was due to the recoverable strain variation in the NiTi samples produced by WAAM were first controlled by [001] texture which appeared during solidification [5,7,13,15,19,20,22]. According to [24], the [001] orientation single crystal demonstrated the smallest recoverable strain and increase in stress hardly affected this value.…”

Section: Resultsmentioning

confidence: 99%

“…The second feature was that the columnar grains formed due to the presence of the preferable direction for heat transfer during solidification. As a result, [001] texture appeared that affected the functional properties [5,7,13,15,19,20,22] as it was observed in the NiTi alloys produced by conventional technique [24]. All these factors (chemical composition, texture, and the precipitates) affected the mechanical and functional properties of the NiTi samples produced by WAAM.…”

Section: Introductionmentioning

confidence: 91%

“…The WAAM is more preferable for the production of large size objects due to a high rate for the manufacturing. The properties of the NiTi samples produced by WAAM have been studying since 2019 and main results are published in [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

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Influence of thermocycling on the functional properties of the NiTi alloy produced by wire arc additive manufacturing

Bikbaev,

Resnina,

Anand Iyamperumal

et al. 2024

Eng. Res. Express

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The influence of the thermocycling under a stress of 200 and 300 MPa on the martensitic transformation temperatures, recoverable and irreversible strain was study in the NiTi samples produced by wire arc additive manufacturing (WAAM). Two types of samples were used: the T1 sample including the Ti-rich NiTi and Ni-rich NiTi layers in the working length and the T2 sample including only the Ni-rich NiTi layers. It was found that the variation in the martensitic transformation temperatures on thermal cycling depended on the chemical composition of the layer. The transformation temperatures decreased on thermal cycling in the Ti-rich NiTi layer (in T1 sample), whereas they were constant in the Ni-rich NiTi layers (in both T1 and T2 samples). The recoverable strain in both samples did not change during thermal cycling. The irreversible strain was found in T1 sample regardless of stress acting on thermal cycling while T2 sample showed the plastic strain only in the first cycle under 300 MPa. It was shown that the difference in a functional behavior of the T1 and T2 samples on thermocycling was due to that the T1 sample contained the Ti-rich NiTi layer, that was characterized by a low dislocation slip limit contrary to the Ni-rich layers which were hardened by the Ni4Ti3 precipitates.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 91%

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Influence of thermocycling on the functional properties of the NiTi alloy produced by wire arc additive manufacturing

Bikbaev,

Resnina,

Anand Iyamperumal

et al. 2024

Eng. Res. Express

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“…The application of Ti-Ni SMA expands in various industrial fields, including medical engineering. Hyper-equiatomic nickel-enriched aging Ti-Ni SMA (containing from 50.6 at.% to 51.0 at.% Ni) are widely applied for the production of medical devices due to superelastic behavior at a human body temperature in combination with high operational characteristics [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the development of new approaches for the improvement of properties of nickel-enriched Ti-Ni SMA, including the optimization of rational production technologies, is of first priority [9][10][11][12][13]. Along with conventional manufacturing, new opportunities for obtaining finished products with a shape memory effect are opened up by additive technologies [4,[14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Effect of Post-Deformation Annealing on Structure and Properties of Nickel-Enriched Ti-Ni Shape Memory Alloy Deformed in Various Initially Deformation-Induced Structure States

et al. 2022

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The effect of post-deformation annealing (PDA) of nickel-enriched Ti-50.9 at.% Ni shape memory alloy deformed in various initially deformation-induced structure states on the structure and properties was studied. The phase composition, temperature ranges of martensitic transformations and structure were studied using X-ray diffractometry and TEM. Mechanical and functional properties were determined using Vickers hardness tests and thermomechanical method using a bending mode for recovery strain inducing. The PDA at 430 °C (1 h) of the nickel-enriched Ti-Ni SMA with the dynamically recovered, dynamically polygonized or dynamically recrystallized structures after compressing deformation leads to the precipitation of finely dispersed (nanosized) Ti3Ni4 particles. The most significant increase of the completely recoverable strain (from 8.8 to 11.8%) and shape recovery rate (from 88 to 100%) as compared to the reference treatment is observed after PDA of the alloy with the dynamically polygonized structure.

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Influence of Substrate Temperature on Structure and Functional Properties of NiTi Walls Produced by WAAM

Resnina,

Palani,

Belyaev

et al. 2023

Trans Indian Inst Met

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Functional Properties of the Multilayer NiTi Alloy Produced by Wire Arc Additive Manufacturing

Cited by 9 publications

References 37 publications

Influence of thermocycling on the functional properties of the NiTi alloy produced by wire arc additive manufacturing

Influence of thermocycling on the functional properties of the NiTi alloy produced by wire arc additive manufacturing

Effect of Post-Deformation Annealing on Structure and Properties of Nickel-Enriched Ti-Ni Shape Memory Alloy Deformed in Various Initially Deformation-Induced Structure States

Influence of Substrate Temperature on Structure and Functional Properties of NiTi Walls Produced by WAAM

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