Microstructure Analysis and Thermal Characteristics of NiTiHf Shape Memory Alloy with Different Composition

Buytoz, Soner; Dağdelen, Fethi; Qader, İbrahim Nazem; Kök, Mediha; Tanyildizi, B.

doi:10.1007/s12540-019-00444-7

Cited by 26 publications

(20 citation statements)

References 28 publications

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“…They found that the enthalpy and entropy changes of martensitic transformation, elastic energy, and chemical forces were diminished with increasing Ni content in the SMA. On the other hand, Buytoz et al [21] reported that enthalpy and entropy changes of NiTi-Hf alloy decreased with increasing Hf content, while PTTs the alloy increased. Also, they found that the alloy with different composition showed different oxidation behavior.…”

Section: Changing Compositionsmentioning

confidence: 99%

“…The phase transformation temperatures are austenite start, austenite finish, martensite start, martensite finish and martensite transformation temperature by deformation (i.e. maximum temperature at which martensite transformation occurs) Temperatures that are symbolized as As, Af, Ms, Mf, and Md, respectively [17][18][19][20][21][22][23][24][25][26][27][28][29].…”

Section: Shape Memory Alloysmentioning

confidence: 99%

“…X-ray diffraction is one of the effective techniques that is used by many material Scientifics. Basically, an x-ray source is needed which is generally obtained from the first electron transition of the Cu element, known as kα (with a wavelength of 1.5406 Å [21]). The incident x-ray reflects from different atoms.…”

Section: Tg/dtamentioning

confidence: 99%

See 2 more Smart Citations

The Effect of Different Parameters on Shape Memory Alloys

Qader

Kök

Dağdelen

et al. 2020

Sakarya University Journal of Science

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Shape memory alloys' characteristics are different from ordinary materials because they can memorize their predetermined shape, thus they are excellent candidates for different applications. In this review article, the most interesting parameters that researchers are using in their investigation have been highlighted. Also, the popular techniques used for the characterization of shape memory alloys have been described. The diagrams and sketches can show a clear view of metallurgies and related research areas.

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Section: Changing Compositionsmentioning

confidence: 99%

Section: Shape Memory Alloysmentioning

confidence: 99%

See 1 more Smart Citation

The Effect of Different Parameters on Shape Memory Alloys

Qader

Kök

Dağdelen

et al. 2020

Sakarya University Journal of Science

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“…There are also many engineer types such as piezoelectric materials [37] that are used in a robotic and ultrasound generator, moreover, they are used for power generating sidewalks [38]. Another type is shape memory alloys (SMAs) that their properties have been improved for Cu-based SMAs [39][40][41][42][43][44][45], NiTi-based SMAs [46][47][48][49][50][51][52][53][54], and Fe-based SMAs [55][56][57]. The aforementioned materials can be used for smart systems that generate clean energies.…”

Section: Materials Science Multidisciplinarymentioning

confidence: 99%

Recent Improvements in Renewable Energies and their effects on the Environment and the Economy: Review Article

Kanca¹,

Qader²,

Qadir³

et al. 2021

El-Cezeri Fen Ve Mühendislik Dergisi

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The increasing populations and expanding industries all over the world led to enhance the need for energy. Since most of the nowadays energies are generated by fossil fuels, so the ratio of greenhouse gases like CO 2 extremely increased that impacted the environment and other sectors. In this study, the renewable energies used globally and in Turkey have been described. Also, the different fields of studies, which covered by different researchers have been highlighted. Besides, the opportunity and the corresponding advantages that can be achieved by harnessing renewable energies have been determined. Consequently, there is good progress in development, and investments have been made in this area, especially by governments, international organizations, and highly advanced and large private companies. Finally, this article provides a detailed review by collecting and examining a variety of renewable energy sources and highlighting prospects for scientists and investors.

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“…SMAs are easily recovered to their original shape after deformation, this feature is so called shape memory effect (Buytoz, Dagdelen, Qader, Kok, & Tanyildizi, 2019;Dagdelen, Aldalawi, Kok, & Qader, 2019;Kök et al, 2020;Kök, Zardawi, Qader, & Kanca, 2019;, because of this property SMA-based actuators are applied in a locomotion robot, manipulator and microrobot (Y. Tanaka & Yamada, 1991).…”

Section: Introductionmentioning

confidence: 99%

The Developments of piezoelectric Materials and Shape Memory Alloys in Robotic Actuator Systems

Mohammed

Kök

Qader

et al. 2019

European Journal of Science and Technology

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There is a high demand for functional smart materials, especially for new material groups in advanced Technologies. These materials are used in the actuator, sensor, control systems, and robotic systems, in addition, they can be hybridized with traditional material to create a particular function. Piezoelectric materials and shape memory alloys are the most important families among these groups. This review includes an overview of shape memory alloys (SMAs) and piezoelectric material actuator systems in terms of robotic applications. The theoretical background of each SMAs and piezoelectric materials is well explained. Different types of each system are interpreted. Using actuator-based SMAs and piezoelectricity in the robotic area is extensively overviewed. Some weaknesses and challenges facing such systems have discussed through recent studies in the literature.

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Microstructure Analysis and Thermal Characteristics of NiTiHf Shape Memory Alloy with Different Composition

Cited by 26 publications

References 28 publications

The Effect of Different Parameters on Shape Memory Alloys

The Effect of Different Parameters on Shape Memory Alloys

Recent Improvements in Renewable Energies and their effects on the Environment and the Economy: Review Article

The Developments of piezoelectric Materials and Shape Memory Alloys in Robotic Actuator Systems

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