Effects of grain size on tensile fatigue life of nanostructured NiTi shape memory alloy

Yin, Hao; He, Yongjun; Moumni, Ziad; Sun, Qingping

doi:10.1016/j.ijfatigue.2016.03.023

Cited by 121 publications

(45 citation statements)

References 56 publications

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“…For samples at 25 0 C, the highest strength was maintained by samples with a grain size of 40 nm and smaller, while the highest strain values before failure were observed in samples of 500 nm grain size. A stress-controlled tensile fatigue study of nc NiTi SMA (Ti-53.9 at % Ni) was conducted by Yin et al [70], using cold-rolled dogboneshaped samples with final thicknesses of 1.16 mm, gage lengths and widths of 12.5 and 2 mm. 10 nm grain size samples were obtained after cold rolling.…”

Section: Mechanical Fatiguementioning

confidence: 99%

On the Fatigue Behavior of Nanocrystalline NiTi Shape Memory Alloys: A Review

Ashbli¹,

Menzemer²

2019

J Nanomed Nanotechnol

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This paper presents a review of the research on the fatigue performance of superelastic polycrystalline nanocrystalline NiTi shape memory alloys (nc NiTi SMAs). A brief introduction to some focal definitions and basic concepts of fatigue measurement and response in NiTi SMAs were given. Results found in the literature on fatigue in nc NiTi SMAs are discussed. Mechanical behavior and energy dissipation capacity of nc NiTi SMAs are explored and collectively compared with coarse-grained NiTi SMAs, along with an assessment of the influence of grain size refinement and thermomechanical treatments. Several conclusions and suggestions are made, including that nc NiTi SMAs exhibit larger functional fatigue resistance, lower crack tolerance, higher superelasticity, and smaller hysteresis loss.

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Section: Mechanical Fatiguementioning

confidence: 99%

On the Fatigue Behavior of Nanocrystalline NiTi Shape Memory Alloys: A Review

Ashbli¹,

Menzemer²

2019

J Nanomed Nanotechnol

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“…The most effective and widely used shape memory alloys are nitinol [3,[7][8][9][10][11][12], copper based shape memory alloys [13][14][15], and iron based shape memory alloys [16][17][18]. Applications of shape memory alloys depend upon their phase transformation temperatures.…”

Section: Transformation Temperatures and Their Importancementioning

confidence: 99%

Brief Overview on Nitinol as Biomaterial

Wadood

2016

Advances in Materials Science and Engineering

117

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Shape memory alloys remember their shape due to thermoelastic martensitic phase transformation. These alloys have advantages in terms of large recoverable strain and these alloys can exert continuous force during use. Equiatomic NiTi, also known as nitinol, has a great potential for use as a biomaterial as compared to other conventional materials due to its shape memory and superelastic properties. In this paper, an overview of recent research and development related to NiTi based shape memory alloys is presented. Applications and uses of NiTi based shape memory alloys as biomaterials are discussed. Biocompatibility issues of nitinol and researchers’ approach to overcome this problem are also briefly discussed.

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“…В зарубежной литературе в последнее время встречается не так много работ по функциональной усталости [2][3][4][5][6][7]. В основном авторы применяют методы анализа классической усталости, принятые для конструкционных материалов и примененные для сплавов с ЭПФ [8][9][10][11][12][13][14][15]. Одна из причин этого, по мнению авторов, заключается в отсутствии подходящих методик и техники для проведения подобных испытаний.…”

Section: Introductionunclassified

Функциональная усталость сплавов с эффектом памяти формы систем Ni-Mn-Ga и Ni-Ti в условиях термоциклирования под постоянной нагрузкой

Kalashnikov¹,

Musabirov²,

Koledov³

et al. 2020

Журнал Технической Физики

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A comparative study of the functional properties and functional fatigue of Ni-Mn-Ga alloys in the initial cast state and Ni-Ti alloys in the initial hot-forged state without heat treatment was carried out. Measurements were carried out using experimental technique of three-point bending of samples in the form of plates of ~ 0.7 mm x 10 mm x 1.5 mm. It is shown that Ni2MnGa alloy in the cast state is preferably used for lightly loaded actuators (up to 100 MPa) and reversible deformations (up to 1.5%) in the temperature range from -85 C to -75 C; Ni-Ti system alloy in hot-forged state is recommended for highly loaded actuators (up to 500 MPa) , high reversible deformations (up to 8.5%) in the temperature range from -40 C to 40 C.

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Effects of grain size on tensile fatigue life of nanostructured NiTi shape memory alloy

Cited by 121 publications

References 56 publications

On the Fatigue Behavior of Nanocrystalline NiTi Shape Memory Alloys: A Review

On the Fatigue Behavior of Nanocrystalline NiTi Shape Memory Alloys: A Review

Brief Overview on Nitinol as Biomaterial

Функциональная усталость сплавов с эффектом памяти формы систем Ni-Mn-Ga и Ni-Ti в условиях термоциклирования под постоянной нагрузкой

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