Effect of Heat Treatment of Cu-Al-Be Shape Memory Alloy on Microstructure, Shape Memory Effect and Hardness

Al-Haidary, Jafar Tahar.; Mustafa, Ali Mundher; Hamza, Ahmed Aziz

doi:10.4172/2169-0022.1000398

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…Therefore, the Alloy 2 plates behaved similarly in terms of the production of explosion-initiating sparks and were similar. The samples subjected to severe wear were in a rolled and heat-treated state, and regardless of the component phases, no quantity was capable of producing explosion-initiating sparks [32].…”

Section: Results Of Wear Tests For Hot Spark Generationmentioning

confidence: 99%

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Analysis of Chemical, Microstructural and Mechanical Properties of a CuAlBe Material Regarding Its Role as a Non-Sparking Material

Chelariu,

Cimpoesu,

Jurca

et al. 2024

Materials

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We developed and analyzed a novel non-sparking material based on CuAlBe for applications in potentially explosive environments. Using a master alloy of CuBe, an established material for anti-sparking tools used in oil fields, mines, or areas with potentially explosive gas accumulations, and pure Al, we used an Ar atmosphere induction furnace to obtain an alloy with ~10 wt% Al and ~2 wt% Be percentages and good chemical and structural homogeneity. The new material was tested in an explosive gaseous mixture (10% H2 or 6.5% CH4) under extremely strong wear for 16,000 cycles, and no hot sparks capable of igniting the environment were produced. The material was used in the form of hot-rolled plates obtained from melted ingots. The experimental results reflect the use of a suitable material for non-sparking tools. This material has good deformability during hot rolling, abnormal grain growth during deformation under heat treatment and special thermo-mechanical processing, and no high chemical composition variation. Additionally, there are slightly different corrosion resistance and mechanical properties between the melt and hot-rolled state of CuAlBe material. Through hot rolling, the material’s corrosion resistance increased, reducing the chances of generating sparks capable of causing explosions.

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Section: Results Of Wear Tests For Hot Spark Generationmentioning

confidence: 99%

“…ilar. The samples subjected to severe wear were in a rolled and heat-treated state, and regardless of the component phases, no quantity was capable of producing explosion-initiating sparks [32].…”

Section: Results Of Wear Tests For Hot Spark Generationmentioning

confidence: 99%

Analysis of Chemical, Microstructural and Mechanical Properties of a CuAlBe Material Regarding Its Role as a Non-Sparking Material

Chelariu,

Cimpoesu,

Jurca

et al. 2024

Materials

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Optimisation of heat treatments on shape memory effect of Cu-24Zn-3.65Al wt. % alloy produced by gravity casting

Setyani,

Novakusuma,

Sofyan

2023

Toward Adaptive Research and Technology Development for Future Life

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Influence of heat treatment on the corrosion properties of CuAlMn shape memory alloys

et al. 2019

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This paper reports on the influence of heat treatment on the corrosion properties of CuAlMn alloy in 0.1%, 0.9% and 1.5% NaCl solution (pH = 7.4). Heat treatment of alloy samples was performed by samples annealing at 900°C for 30 min. Electrochemical methods of investigations included measuring the open circuit potential (Eoc) and linear and potentiodynamic polarisation. Optical microscopy, scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) were used to study the morphology and composition of the corroded surfaces, along with X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). Heat-treated samples have slightly more positive values of Eoc, slightly lower values of corrosion current density and higher values of polarisation resistance compared with the as-cast alloy. The microscopic analysis showed the rough surfaces due to corrosion processes. Increasing the electrolyte concentration leads to an increase in alloy surface damage. AFM and SEM examinations showed that the surface was covered with interlaced layers of corrosion products, as well as cracks and ducts formed by their dissolution. EDX and XPS analyses showed that corrosive products consist mainly of aluminium and manganese oxides and chlorides. Annealed CuAlMn alloy samples have significantly lower copper content compared with the as-cast CuAlMn alloy.

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Effect of Heat Treatment of Cu-Al-Be Shape Memory Alloy on Microstructure, Shape Memory Effect and Hardness

Cited by 3 publications

References 12 publications

Analysis of Chemical, Microstructural and Mechanical Properties of a CuAlBe Material Regarding Its Role as a Non-Sparking Material

Analysis of Chemical, Microstructural and Mechanical Properties of a CuAlBe Material Regarding Its Role as a Non-Sparking Material

Optimisation of heat treatments on shape memory effect of Cu-24Zn-3.65Al wt. % alloy produced by gravity casting

Influence of heat treatment on the corrosion properties of CuAlMn shape memory alloys

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