Barothermal analysis and structure of the eutectic Al-Ni (2.7 at % Ni) alloy

Падалко, А. Г.; Talanova, G. V.; Ponomareva, E. Yu.; Talyat-Kelpsh, V. V.; Shvorneva, L. I.; Zubarev, G. I.; Fedotov, V. T.; Сучков, А. Н.; Baklan, V. A.

doi:10.1134/s0020168512060143

Cited by 7 publications

(3 citation statements)

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“…The alloy synthesis process and sample preparation procedures were described in sufficient detail elsewhere [9][10][11][12][13]. A possible way to study the phase transformations at high pressures and temperatures is to use the previously developed differential barothermal analysis (DBA) technique [9][10][11][12][13].…”

Section: Methodsmentioning

confidence: 99%

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Barothermography and microstructure of the hypoeutectic and eutectic alloys in Al–Si system

Dediaeva

Падалко

Akopyan

et al. 2015

J Therm Anal Calorim

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Differential barothermal analysis (DBA or HP-DTA) of the phase transformations in hypoeutectic Al-10 at.% Si and eutectic Al-12 at.% Si alloys was carried out at 100 MPa of argon pressure and at temperatures up to 700°C. Liquidus temperature of Al-10 at.% Si is reduced during melting and crystallization by 3-4°C as compared with the atmospheric pressure data. Increase in the eutectic transformation L ? (Al) ? Si temperature up to 580-581°C during heating was found for the Al-10 at.% Si and Al-12 at.% Si alloys. According to the barothermography data, a slight thermal effect at 553°C is detected for both alloys, which was identified as the decomposition of aluminum-based solid solution and precipitation of silicon particles. The improvement of silicon phase morphology for Al-10 at.% Si and Al-12 at.% Si alloys after hot isostatic pressing (HIP) at the pressure of 100 MPa and temperature of 550°C was found. No porosity in the alloy has been established after HIP treatment. After HIP thermal expansion, coefficients of the alloy are noticeably decreased by 25 (Al-10 at.% Si) and 50 % (Al-12 at.% Si).

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Section: Methodsmentioning

confidence: 99%

“…A possible way to study the phase transformations at high pressures and temperatures is to use the previously developed differential barothermal analysis (DBA) technique [9][10][11][12][13]. Microstructures were examined at first on a MeF3 light microscope (Austria), equipped with a digital imaging accessory.…”

Section: Methodsmentioning

confidence: 99%

Barothermography and microstructure of the hypoeutectic and eutectic alloys in Al–Si system

Dediaeva

Падалко

Akopyan

et al. 2015

J Therm Anal Calorim

View full text Add to dashboard Cite

show abstract

“…apropriadas para a fabricação de turbinas a gás [Padalko et al, 2012]. A adição de Ni nas ligas Al-Si tem como objetivo elevar a resistência mecânica tanto em temperatura ambiente quanto em altas temperaturas, através da formação de intermetálicos entre o Al e o Ni, aumentando a rigidez do material [Stadler et al, 2012;Asghar et al, 2010].…”

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