Influence of Mg Addition on Crystallisation Kinetics and Structure of the Zn-Al-Cu Alloy

Krupiński, M.; Labisz, K.; Tański, Tomasz; Krupińska, B.; Król, M.; Polok-Rubiniec, M.

doi:10.1515/amm-2016-0132

Cited by 11 publications

(11 citation statements)

References 8 publications

(7 reference statements)

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“…However, application of aluminium casting alloys for structural components requires high strength and suitable high elongations. Grain size, their morphology, interdendritic distance and distribution of secondary phases are crucial factors affecting mechanical properties of cast parts [1,[5][6][7]. The quality of the microstructure of aluminium alloys mainly depends on the chemical composition, melting process and cooling rate [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Structure and properties of aluminium–magnesium casting alloys after heat treatment

Król

Tański

Snopiński

et al. 2016

J Therm Anal Calorim

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Since the forming of the microstructure depends on the specific of the casting method, which directly affects further mechanical and physical properties of the material, it is important to understand how to control the microstructure of the cast to understand changes that taking place during the crystallisation process. For estimating the metallurgical quality of the liquid metal before casting, the thermal-derivative analysis (TDA) is utilised. The TDA has been used for a long time, in both ferrous and non-ferrous industries casting. The Universal Metallurgical Simulator and Analyser (UMSA) platform is a rapid, sensitive and economical method of determining a full range of solidification features. The work focuses on the thermal analysis and heat treatment of aluminium alloys. The liquidus and solidus temperatures and dendrite coherency point (DCP) are then characterised. The research shows that the UMSA platform allows precise determination and calculation of thermal parameters. The influence of the heat treatment on structure and properties of aluminium castings has been determined as well. Heat treatment was carried out to increase the mechanical properties of aluminium alloys.Based on the findings above, the influence of microstructure on properties of the alloys is discussed.

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Section: Introductionmentioning

confidence: 99%

Structure and properties of aluminium–magnesium casting alloys after heat treatment

Król

Tański

Snopiński

et al. 2016

J Therm Anal Calorim

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“…Grain size, their morphology, interdendritic distance and distribution of secondary phases are crucial factors affecting mechanical properties of cast parts (Canales et al, 2012;Luna et al, 2013;Shokuhfar and Nejadseyfi, 2014;Krupin´ski et al, 2016). The quality of the microstructure of aluminum alloys mainly depends on the chemical composition, melting process, cooling rates and temperature gradients (Xia et al, 2014;Kro´l et al, 2015;Krupin´ski et al, 2016). Due to those facts, it is important to understand how to control structure forming of aluminum alloys through casting.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Properties of Diluted Al-Mg Alloys With Columnar-To-Equiaxed Transition

et al. 2022

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The objective of the present research is to study the corrosion susceptibility of two Al-Mg diluted alloys (Al-0.5wt.%Mg and Al-2wt.%Mg) with different grains structures obtained by directional solidification (columnar, equiaxed and columnar-to-equiaxed transition, CET) in 0.5% NaCl solution, at room temperature. The corrosion resistance is analyzed by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques in both longitudinal and transversal sections of the samples. The columnar grain zone presents higher corrosion resistance than the equiaxed grain zone. In addition, the transversal section shows higher corrosion resistance than the longitudinal section of the samples. Then, the Al-0.5wt.% Mg alloy displays higher corrosion resistance than the Al-2wt.% Mg alloy. The values of the polarization resistance are used as a basic criterion for the evaluation of the corrosion resistance of both alloys. In this way, when the polarization resistance decreases with the increasing in the distance from the base, the grain size, secondary dendritic arm spacings and hardness increases. In addition, when the polarization resistance increases, the critical temperature gradient decreases.

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“…The transitions kinetics of the reaction in solid state in a component may be diagnosed by quantifying the variation in physical properties such as hardness, dilation, electrical resistivity or enthalpy as a function of reaction temperature and time. One of the methods that provide precise information about transitions in solid state during heating and cooling cycles is dilatometry [16][17][18][19][20][21][22][23]. This technique is a very sensitive and appropriate method for examining phase transformations, which revealed its strengths on measurements of a wide range of steels, such as maraging steels and lowcarbon steels.…”

Section: Introductionmentioning

confidence: 99%

The phase transitions in selective laser-melted 18-NI (300-grade) maraging steel

Król

Snopiński

Czech

2020

J Therm Anal Calorim

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Dilatometric studies in 18-Ni steel components fabricated by selective laser melting technique were carried out to determine the influence of heating rate on transitions occurring during the heating cycle. SLM components have been examined in controlled heating and cooling cycles. For analysis, heating of the analysed materials was carried out at heating rates of 10, 15, 20, 30 and 60 °C min −1 . During the heating process, two solid-state reactions were identified-i.e. precipitation of intermetallic phases and the reversion of martensite to austenite. A simplified procedure based on the Kissinger equation was used to determine the activation energy of individual reactions. For precipitation of intermetallic phases, the activation energy was estimated 301 kJ mol −1 , while the martensite to austenite reversion was determined at the activation energy 478 kJ mol −1 .Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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Influence of Mg Addition on Crystallisation Kinetics and Structure of the Zn-Al-Cu Alloy

Cited by 11 publications

References 8 publications

Structure and properties of aluminium–magnesium casting alloys after heat treatment

Structure and properties of aluminium–magnesium casting alloys after heat treatment

Electrochemical Properties of Diluted Al-Mg Alloys With Columnar-To-Equiaxed Transition

The phase transitions in selective laser-melted 18-NI (300-grade) maraging steel

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