High temperature shape memory alloy actuators through mechanical treatments for an oil &amp; gas down-hole valve

Gore, J.G.; Bowles, Adrian; Maylin, M.G.; Chandrasekaran, L.; Forsyth, D.; Buyers, M

doi:10.1117/12.776306

Cited by 11 publications

(8 citation statements)

References 18 publications

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“…Many potential uses for HTSMAs have also been proposed for under the hood applications in automobiles for fuel management and engine control purposes. 337 A more recent but growing area of interest for HTSMAs is in energy exploration for down hole oil and gas applications such as flow control valves, 338,339 safety valves and other compact actuators (Fig. 67).…”

Section: Potential Applications Of Htsmasmentioning

confidence: 99%

“…b Illustrates an SMA based trigger valve for flow control and c the complete SMA valve assembly including electronics, power, and communications. 339 Reproduced with permission from the SPIE pressure transducers have a 6 to 10 times sensitivity improvement over standard metal thin film gages, coupled with high frequency response (60-80 kHz) and high operating temperature. The reason for the high frequency response is that the operation of the sensor is not based on the thermal transformation of martensite to austenite (as in actuators) but is based instead on the resistance change in the material when the austenite is transformed to martensite through a stress induced transformation.…”

Section: Potential Applications Of Htsmasmentioning

confidence: 99%

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High temperature shape memory alloys

Ma¹,

Караман²,

Noebe³

2010

International Materials Reviews

850

371

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Shape memory alloys (SMAs) with high transformation temperatures can enable simplifications and improvements in operating efficiency of many mechanical components designed to operate at temperatures above 100uC, potentially impacting the automotive, aerospace, manufacturing and energy exploration industries. A wide range of these SMAs exists and can be categorised in three groups based on their martensitic transformation temperatures: group I, transformation temperatures in the range of 100-400uC; group II, in the range of 400-700uC; and group III, above 700uC. In addition to the high transformation temperatures, potential high temperature shape memory alloys (HTSMAs) must also exhibit acceptable recoverable transformation strain levels, long term stability, resistance to plastic deformation and creep, and adequate environmental resistance. These criteria become increasingly more difficult to satisfy as their operating temperatures increase, due to greater involvement of thermally activated mechanisms in their thermomechanical responses. Moreover, poor workability, due to the ordered intermetallic structure of many HTSMA systems, and high material costs pose additional problems for the commercialisation of HTSMAs. In spite of these challenges, progress has been made through compositional control, alloying, and the application of various thermomechanical processing techniques to the point that several likely applications have been demonstrated in alloys such as Ti-Ni-Pd and Ti-Ni-Pt. In the present work, a comprehensive review of potential HTSMA systems are presented in terms of physical and thermomechanical properties, processing techniques, challenges and applications.

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Section: Potential Applications Of Htsmasmentioning

confidence: 99%

Section: Potential Applications Of Htsmasmentioning

confidence: 99%

High temperature shape memory alloys

Ma¹,

Караман²,

Noebe³

2010

International Materials Reviews

850

371

View full text Add to dashboard Cite

show abstract

“…Most commercially available SMAs used in actuation have transformation temperatures between room temperature (RT) and 100 C. These are well below the ambient temperatures of many actuation applications where the use of SMAs has been shown to be desirable, such as in aeronautics (Pitt et al, 2002a, b;Mabe et al, 2007;DeCastro et al, 2005), automotive applications (Stoeckel, 1990;Otten et al, 2008), and down-hole oil and gas exploration (Gore et al, 2008). Since commercial alloys are incapable of providing the motive force in actuation systems used in these environments, hightemperature shape memory alloys (HTSMAs) are being investigated and developed.…”

Section: Introductionmentioning

confidence: 99%

Development, Characterization, and Design Considerations of Ni_19.5Ti_50.5 Pd₂₅Pt₅ High-temperature Shape Memory Alloy Helical Actuators

Stebner

Padula

Noebe

et al. 2009

Journal of Intelligent Material Systems and Structures

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Shape memory alloys (SMAs) have been used in various applications since their discovery. However, their use as actuation devices in high-temperature environments has been limited due to the temperature constraints of commercially available materials. Recently, SMAs that produce good work characteristics at elevated temperatures have been developed at NASA’s Glenn Research Center. One such alloy, Ni19.5Ti50.5Pd25Pt 5, has shown repeatable strain recovery on the order of 2.5% in the presence of an externally applied stress at temperatures greater than 250°C. Based on these findings, potential applications for this alloy are being explored and further work is being done to assess the use of this alloy in various structural forms. In this article, the characterization of Ni 19.5Ti50.5Pd25Pt5 helical actuators is reported, including their mechanical responses and how variations in their responses correlate to changes in geometric parameters and training loads. Finally, implementation of previously published SMA spring design methodology in future SMA helical actuator development is considered through comparison of the observed and predicted responses.

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“…Many potential uses of HTSMAs have also been proposed for various automobile applications especially for engine control and fuel management purposes [11]. Another potential area of HTSMAs usage is energy exploration for downhole oil and gas applications such as flow safety valves, control valves, and compact actuators [12,13]. High temperature shape memory alloys also have potential uses in the area of MEMS i.e., microvalves with better response time as compared to that of binary TiNi alloy-based microvalves [14].…”

Section: Introductionmentioning

confidence: 99%

A Review of TiNiPdCu Alloy System for High Temperature Shape Memory Applications

Khan

Kim

Miyazaki

2015

Shap. Mem. Superelasticity

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High temperature shape memory alloys (HTSMAs) are important smart materials and possess a significant potential to improve many engineering systems. Many TiNi-based high temperature ternary alloy systems have been reported in literature including TiNiPd, TiNiPt, TiNiZr, TiNiAu, TiNiHf, etc. Some quaternary additions of certain elements in the above systems have been successful to further improve many important shape memory and mechanical properties. The success criteria for an HTSMA become strict in terms of its cyclic stability, maximum recoverable strain, creep resistance, and corrosion resistance at high temperatures. TiNiPdCu alloy system has been recently proposed as a promising HTSMA. Unique nanoscaled precipitates formed in TiNiPdCu-based HTSMAs are found to be stable at temperatures above 773 K, while keeping the benefits of ease of fabrication. It is expected that this alloy system possesses significant potential especially for the high temperature shape memory applications. Till now many research reports have been published on this alloy system. In the present work, a comprehensive review of the TiNiPdCu system is presented in terms of thermomechanical behavior, nanoscale precipitation mechanism, microstructural features, high temperature shape memory and mechanical properties, and the important parameters to control the high temperature performance of these alloys.

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High temperature shape memory alloy actuators through mechanical treatments for an oil & gas down-hole valve

Cited by 11 publications

References 18 publications

High temperature shape memory alloys

High temperature shape memory alloys

Development, Characterization, and Design Considerations of Ni_19.5Ti_50.5 Pd₂₅Pt₅ High-temperature Shape Memory Alloy Helical Actuators

A Review of TiNiPdCu Alloy System for High Temperature Shape Memory Applications

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High temperature shape memory alloy actuators through mechanical treatments for an oil & gas down-hole valve

Cited by 11 publications

References 18 publications

High temperature shape memory alloys

High temperature shape memory alloys

Development, Characterization, and Design Considerations of Ni19.5Ti50.5 Pd25Pt5 High-temperature Shape Memory Alloy Helical Actuators

A Review of TiNiPdCu Alloy System for High Temperature Shape Memory Applications

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Product

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Development, Characterization, and Design Considerations of Ni_19.5Ti_50.5 Pd₂₅Pt₅ High-temperature Shape Memory Alloy Helical Actuators