Thermal conductivity and electrical resistivity dependences on growth rate in the directionally solidified Al–Cu–Ni eutectic alloy

Bayram, Ümit; Maraşlı, Necmetti̇n

doi:10.1016/j.jallcom.2018.04.277

Cited by 18 publications

(4 citation statements)

References 41 publications

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“…During the heatingcooling processes, the structure of these alloys' changes within the martensitic region. Moreover, usable forces arise during the martensite ⇔ austenite transformation upon thermal cycling due to the shape recovery properties, which allows these alloys to be used as a component in some devices [46,47]. The martensitic transformation requires higher energy than the reverse transformation [48].…”

Section: Phase Transformation Morphologymentioning

confidence: 99%

Cu-Based Shape Memory Alloys: Modified Structures and Their Related Properties

Saud¹

2020

Recent Advancements in the Metallurgical Engineering and Electrodeposition

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Cu-Al-Ni shape memory alloys (SMAs) have been developed for hightemperature applications due to their ability to return to pre-deformed shape after heating above the transformation temperature, as well as these alloys have a small hysteresis and high transformation temperature comparing with other shape memory alloys. Adding some of the alloying elements such as Ti, Mn, Be, Zr and B or changing the interior content either Al or Ni by increasing/decreasing may have a significant effect on the phase transitions and enhance the mechanical properties of these alloys. However, the martensite phase transformation is the most important factor, which can be changing the whole properties of Cu-Al-Ni SMAs, where this phase is mainly affected by the alloying elements additions. This chapter reviews the effect of alloying elements on the phase transitions and the enhancement of the mechanical properties of this alloy.

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Section: Phase Transformation Morphologymentioning

confidence: 99%

Cu-Based Shape Memory Alloys: Modified Structures and Their Related Properties

Saud¹

2020

Recent Advancements in the Metallurgical Engineering and Electrodeposition

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“…Furthermore, during the transformation processes from martensite into austenite forms, a usable force just induces due to the thermal cyclic load. This force might help for using these alloys for several important applications Bayram andMaraşlı(2018) , andBraga(2017). It is noted that the martensite transformation needs higher transformation energy than that corresponding in the reverse direction (reverse transformation).…”

Section: Phase Transformation Morphologymentioning

confidence: 99%

A Review of Microstructure and Corrosion Behavior of Cu Al Ni Shape Memory Alloy

Dawood¹

2020

IQJMME

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The shape memory alloys (SMAs), that consist of Cu-Al-Ni, have been established and developed for the applications used at higher temperature values due to their capability to return to its original shape when heating close to its transformation temperature. Cu-Al-Ni alloy has high value of transformation temperature and show small hysteresis as compared to the other types of SMAs. This work present a general review about how SMAs have developed by adding several metals such as, Ti, Be, B, Mn, and Zr or by changing its content (Ni or Al) by either decreasing or increasing. That might show a significant impact on the phase transition and enhancing the corrosion behavior and mechanical properties of the presented alloys. However, the transformation of the martensite phase is the critical factor that might change the properties of Cu-Al-Ni SMAs. This phase is largely affected by addition of the alloying element mentioned above. A review about effect of addition some alloying elements for enhancing the corrosion characteristics of the alloy and phase transition is presented.

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“…These methods generally lead to greater agreement with the results observed in practice. On the other hand, a large number of experimental studies have also been performed to fulfil the same objective [31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50]. Another interesting technique that has been widely used to determine the unsteady thermal variables acting during solid-liquid phase change is the inverse heat conduction problem (IHCP), which is based on a mathematical description of the physical mechanisms of the process supplemented with experimentally obtained temperature measurements in metals and/or molds.…”

Section: Introductionmentioning

confidence: 99%

On the derivation of unsteady closed-form analytical solution for the solidification of pure and eutectic materials with boundary conditions of the third kind

Ferreira,

Júnior,

Moreira

2024

Preprint

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Solidification and fusion are important processes applied in several fields of science and technology. Recently, far beyond the realms of materials science and metallurgy, many applications have risen in latent heat thermal energy storage and melting and growth of ice plates. Due to the relative difficulty in obtaining numerical solutions for moving boundary problems for a wide range of space and time scales. In this work, four closed-form solutions for the transient solidification of pure and eutectic materials are proposed for one- and three-dimensional semi-infinite slabs considering convective boundary conditions and melting superheating. The analytical results are plotted against the numerical simulation results.

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Thermal conductivity and electrical resistivity dependences on growth rate in the directionally solidified Al–Cu–Ni eutectic alloy

Cited by 18 publications

References 41 publications

Cu-Based Shape Memory Alloys: Modified Structures and Their Related Properties

Cu-Based Shape Memory Alloys: Modified Structures and Their Related Properties

A Review of Microstructure and Corrosion Behavior of Cu Al Ni Shape Memory Alloy

On the derivation of unsteady closed-form analytical solution for the solidification of pure and eutectic materials with boundary conditions of the third kind

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