Effect of Antimony and Yttrium Addition on the High Temperature Properties of AZ91 Magnesium Alloy

Boby, Arun; Ravikumar, K. K.; Pillai, U.T.S.; Pai, B.C.

doi:10.1016/j.proeng.2013.03.226

Cited by 20 publications

(6 citation statements)

References 2 publications

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“…al. in their research [28] indicate that more than 0.6% of yttrium addition causes decreased of mechanical properties, therefore there was no need to use higher concentration of yttrium in this research.…”

Section: Image Analysismentioning

confidence: 85%

Archives of Metallurgy and Materials

Mikusek,

Rapiejko,

Andrzejczak

et al. 2020

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This paper presents results of a study of the effect of inoculation of yttrium on the microstructure of AZ91 alloy. The concentration of the inoculant was increased in samples in the range from 0.1% up to 0.6%. The influence of Y on the thermal effects resulting from the phase transformations occurring during the crystallisation at different inoculant concentrations were examined with the use of Derivative and Thermal Analysis (DTA). The microstructures of the samples were examined with the use of an optical microscope; and an image analysis with a statistical analysis were also carried out. Those analyses aimed at examining oh the effect of inoculation of the Y on the differences between the grain diameters of phase α Mg and eutectic α Mg + γ (Mg 17 Al 12 ) in the prepared examined material as well as the average size of each type of grain by way of measuring their perimeters.

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Section: Image Analysismentioning

confidence: 85%

Archives of Metallurgy and Materials

Mikusek,

Rapiejko,

Andrzejczak

et al. 2020

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show abstract

“…These alloys characterize in a significantly lower mass than that of light aluminium alloys, but they also have much lower mechanical properties. In order to improve their mechanical properties, magnesium alloys are enriched with different alloy additions [2][3][4][5][6][7][8]12]. In the recent years, research has been made which confirms that a small amount of chromium and vanadium improves the properties of alloy AM60 [9].…”

Section: Introductionmentioning

confidence: 95%

Effect of intensive cooling of alloy AM60 with chromium and vanadium additions on cast microstructure and mechanical properties

Rapiejko

Pisarek

Pacyniak

2017

Archives of Metallurgy and Materials

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The work presents the results of the investigations of the effect of intensive cooling of alloy AM60 with additions of chromium and vanadium on the microstructure and mechanical properties of the obtained casts. The experimental casts were made in ceramic moulds preliminarily heated to 180°C, into which alloy AM60 with the additions was poured. Within the implementation of the research, a comparison was made of the microstructure and mechanical properties of the casts obtained in ceramic moulds cooled at ambient temperature and the ones intensively cooled in a cooling liquid. The kinetics and dynamics the thermal effects recorded by the TDA method were compared. Metallographic tests were performed with the use of an optical microscope and the strength properties of the obtained casts were examined: UTS(Rm), elongation (A%), and HB hardness.

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“…One of the methods of improving the properties of those alloys is rapid removal of heat from the mould and the casts as a result of intensive cooling, which, in consequence, leads to fragmentation of the microstructure [5,6]. Another method of changing the microstructure of magnesium alloys is introduction of alloy additions as well as application of modification processes with the use of various compounds [7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Archives of Foundry Engineering

Rapiejko,

Mikusek,

Just

et al. 2020

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The paper presents the results of research related to the possibility of inoculation of the AZ91 magnesium alloy casted into ceramic moulds by gadolinium. Effects of gadolinium content (0.1-0.6 wt%) on microstructure of the AZ91 alloy under as-cast state were investigated. The influence of the inoculator on the formation of the microstructure investigated by means of the thermal and derivative analysis by analysing the thermal effects arising during the alloy crystallization resulting from the phases formed. The degree of fragmentation of the microstructure of the tested alloys was assessed by means of the light microscopy studies and an image analysis with statistical analysis was performed. Conducted analyses have aimed at examining on the effect of inoculation of the gadolinium on the differences between the grain diameters and average size of each type of grain by way of measuring their perimeters of all phases, preliminary α Mg and eutectics α Mg +γ(Mg 17 Al 12 ) in the prepared examined material..

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Effect of Antimony and Yttrium Addition on the High Temperature Properties of AZ91 Magnesium Alloy

Cited by 20 publications

References 2 publications

Archives of Metallurgy and Materials

Archives of Metallurgy and Materials

Effect of intensive cooling of alloy AM60 with chromium and vanadium additions on cast microstructure and mechanical properties

Archives of Foundry Engineering

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