Resistance to recrystallization due to Sc and Zr addition to Al–Mg alloys

Očenášek, Vladivoj; Slámová, Margarita

doi:10.1016/s1044-5803(01)00165-6

Cited by 145 publications

(53 citation statements)

References 4 publications

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“…Additionally, MA can promote the formation of intermetallics in the Zr-Al system [7,8] and metastable phases in both Mg-Zr [9,10] and Mg-Al [11][12][13] systems. Most of the work published in the Al-Mg-Zr system has focused on the liquid-processing route [4,[14][15][16][17], and little or no information is available on the processing of nanophase Al-Mg-Zr alloys by MA. Therefore, the aim of this investigation is to study the phase evolution of as-milled and annealed Al-Mg powders before and after the additions of 5 at% Zr.…”

Section: Introductionmentioning

confidence: 99%

Phase evolution of Mg–Al–Zr nanophase alloys prepared by mechanical alloying

Al-Aqeeli

Mendoza-Suárez

Labrie

et al. 2005

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Phase evolution of Mg–Al–Zr nanophase alloys prepared by mechanical alloying

Al-Aqeeli

Mendoza-Suárez

Labrie

et al. 2005

Journal of Alloys and Compounds

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“…In addition, when annealed at 410 ± 10 • C, recrystallization accompanied with softening would occur in the semi-finished wire alloys with a deformed microstructure. Researchers have found that the addition of Zr and/or Sc elements could cause the resistance to recrystallization due to Zener pinning effect from secondary precipitates [15,16,25]. Therefore, it could be deduced that Al 3 Zr phases, which were distributed dispersively in the matrix, inhibited the recrystallization of the annealed semi-finished wire alloys.…”

Section: Microstructures Of As-cast Al-5mg-xzr Wire Alloysmentioning

confidence: 99%

Study in Wire Feedability-Related Properties of Al-5Mg Solid Wire Electrodes Bearing Zr for High-Speed Train

Wang

Xue

et al. 2017

Metals

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Abstract:This work offers an analysis of the wire feedability-related properties of Al-5Mg solid wire electrodes bearing Zr. Effects of Zr content on microstructures and mechanical properties of the Al-5Mg alloys were studied. Experimental results have demonstrated that α-Al dendrites of the as-cast Al-5Mg alloy are refined, and the tensile strength, microhardness and roughness of the 1.2 mm wire electrode are improved with an appropriate addition of Zr. In addition, the tensile strength and elongation of the welded joints welded using Al-5Mg wire electrodes bearing Zr reach the maximum value when 0.12% Zr is added into the wire alloy. However, when excess Zr is added, α-Al phases of the wire alloy and welded joint are coarsened, and the mechanical properties are deteriorated. Moreover, the structure and principle of a novel apparatus, which can enhance the feedability of the wire electrode, are introduced and the apparatus can achieve the rough and fine adjustments of cast and helix of the wire electrode.

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“…The present research trend is to microalloy these materials with elements like Sn, In, Cd, Ag, etc. [1][2][3][4][5][6][7] in order to achieve higher strength combined with reasonable toughness and low density. The precipitation strengthening in these alloys is accomplished by a sequence of solutionising heat treatment at elevated temperature, quenching to room temperature, and precipitation heat treatment at some intermediate temperature for a sufficient period of time.…”

Section: Introductionmentioning

confidence: 99%

Calorimetric study of precipitation kinetics of Al-Cu-Mg and Al-Cu-Mg-0.06 wt.% Sn alloys

2010

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Al-Cu-Mg alloy and Al-Cu-Mg alloy micro alloyed with 0.06 wt.% of Sn were prepared by casting route. Precipitation kinetics of these alloys was studied by differential scanning calorimeter (DSC) from 50°C to 550°C at constant heating rates of 10°C/min, 15°C/min, 20°C/min and 25°C/min. DSC curves of the AlCu-Mg alloy revealed two exothermic peaks in the temperature ranges from 245.3°C to 257.5°C and from 267.7°C to 288.3°C. For Al-Cu-Mg-0.06 wt.% Sn alloy, two similar exothermic peaks were observed in the temperature ranges from 233.5°C to 252.1°C and from 271.3°C to 296.7°C. Both peak temperatures increased with increase in heating rate. The reaction kinetics was investigated and the kinetic parameters of the rate equation were determined from the experimental results by using a new methodology. Activation energy of precipitation increased from 96.3 kJ/mole to 99.1 kJ/mole for the first exothermic peak and decreased from 78.0 kJ/mole to 69.0 kJ/mole for the second exothermic peak due to trace addition of 0.06 wt.% of Sn. Fairly good accuracy was obtained when the rate of reaction predicted using the derived parameters was compared with the experimental values.

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Resistance to recrystallization due to Sc and Zr addition to Al–Mg alloys

Cited by 145 publications

References 4 publications

Phase evolution of Mg–Al–Zr nanophase alloys prepared by mechanical alloying

Phase evolution of Mg–Al–Zr nanophase alloys prepared by mechanical alloying

Study in Wire Feedability-Related Properties of Al-5Mg Solid Wire Electrodes Bearing Zr for High-Speed Train

Calorimetric study of precipitation kinetics of Al-Cu-Mg and Al-Cu-Mg-0.06 wt.% Sn alloys

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