Studying the Effect of Addition Particles of Alumina (Al2O3)

This study is concerned with the effect of adding two kinds of ceramic materials on the mechanical properties of (Al-7%Si- 0.3%Mg) alloy, which are zirconia with particle size (20?m > P.S ? 0.1?m) and alumina with particle size (20?m > P.S ? 0.1?m) and adding them to the alloy with weight rati...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Sarmad I. Ibrahim
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2011
Materias:	Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/6cba79050e564a128928646d472883f0
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:6cba79050e564a128928646d472883f0
record_format	dspace
spelling	oai:doaj.org-article:6cba79050e564a128928646d472883f02021-12-02T04:46:22ZStudying the Effect of Addition Particles of Alumina (Al2O3) 1818-1171https://doaj.org/article/6cba79050e564a128928646d472883f02011-01-01T00:00:00Zhttp://www.iasj.net/iasj?func=fulltext&aId=24565https://doaj.org/toc/1818-1171This study is concerned with the effect of adding two kinds of ceramic materials on the mechanical properties of (Al-7%Si- 0.3%Mg) alloy, which are zirconia with particle size (20?m > P.S ? 0.1?m) and alumina with particle size (20?m > P.S ? 0.1?m) and adding them to the alloy with weight ratios (0.2, 0.4, 0.6, 0.8 and 1%). Stirring casting method has been used to make composite material by using vortex technique which is used to pull the particles to inside the melted metals and distributed them homogenously.After that solution treatment was done to the samples at (520ºC) and artificial ageing at (170ºC) in different times, it has been noticed that the values of hardness is increased with the aging time of the original alloy and reached its highest value after (8hr).Mechanical tests were done to the original alloy and the composite material at the maximum hardness value and represented by tensile, hardness, and wear tests. It was found that the hardness value is increased with increment of the amount of added particles; also the increment in the hardness of the alloy which is reinforced with alumina is more than that reinforced with zirconia.Regarding the tensile test, results show that the strength and yield resistance of the composite material are more than that in the original alloy and these values are increased with increasing the amount of the added particles and they reached maximum values at (0.6%). Then they are decreased but these values remain at higher values than those in the original alloy. However, the ductility is decreased as compared with the original alloy and this decrement was more obvious with the increasing amount of the added particles. The increment of strength and yield resistance of the alloy reinforced by alumina was higher than that reinforced with zirconia, while the ductility of the alloy reinforced by zirconia was higher than that happened by the addition of alumina. Also zirconia and alumina addition to the original alloy decreased the wear rate, and the decrement would be more with the increased amount of adding particles. In addition the wear resistance of the alloy reinforced with alumina was larger than that reinforced with zirconia. X-rays testing proved that secondary phase (AlFeSi) appeared in both original alloy and the composite material. While heat treatment led to the appearance of phases (Mg2Al) and (Mg2Si) in original alloy. This was led to obvious improvement in the mechanical properties in addition to appearance ceramic particles in the microstructure of the composite material.This structure somewhat homogenous has fine grains as compared with large grains in the microstructure of the original alloy. . Sarmad I. IbrahimAl-Khwarizmi College of Engineering – University of BaghdadarticleChemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 7, Iss 3, Pp 78-90 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Sarmad I. Ibrahim Studying the Effect of Addition Particles of Alumina (Al2O3)
description	This study is concerned with the effect of adding two kinds of ceramic materials on the mechanical properties of (Al-7%Si- 0.3%Mg) alloy, which are zirconia with particle size (20?m > P.S ? 0.1?m) and alumina with particle size (20?m > P.S ? 0.1?m) and adding them to the alloy with weight ratios (0.2, 0.4, 0.6, 0.8 and 1%). Stirring casting method has been used to make composite material by using vortex technique which is used to pull the particles to inside the melted metals and distributed them homogenously.After that solution treatment was done to the samples at (520ºC) and artificial ageing at (170ºC) in different times, it has been noticed that the values of hardness is increased with the aging time of the original alloy and reached its highest value after (8hr).Mechanical tests were done to the original alloy and the composite material at the maximum hardness value and represented by tensile, hardness, and wear tests. It was found that the hardness value is increased with increment of the amount of added particles; also the increment in the hardness of the alloy which is reinforced with alumina is more than that reinforced with zirconia.Regarding the tensile test, results show that the strength and yield resistance of the composite material are more than that in the original alloy and these values are increased with increasing the amount of the added particles and they reached maximum values at (0.6%). Then they are decreased but these values remain at higher values than those in the original alloy. However, the ductility is decreased as compared with the original alloy and this decrement was more obvious with the increasing amount of the added particles. The increment of strength and yield resistance of the alloy reinforced by alumina was higher than that reinforced with zirconia, while the ductility of the alloy reinforced by zirconia was higher than that happened by the addition of alumina. Also zirconia and alumina addition to the original alloy decreased the wear rate, and the decrement would be more with the increased amount of adding particles. In addition the wear resistance of the alloy reinforced with alumina was larger than that reinforced with zirconia. X-rays testing proved that secondary phase (AlFeSi) appeared in both original alloy and the composite material. While heat treatment led to the appearance of phases (Mg2Al) and (Mg2Si) in original alloy. This was led to obvious improvement in the mechanical properties in addition to appearance ceramic particles in the microstructure of the composite material.This structure somewhat homogenous has fine grains as compared with large grains in the microstructure of the original alloy. .
format	article
author	Sarmad I. Ibrahim
author_facet	Sarmad I. Ibrahim
author_sort	Sarmad I. Ibrahim
title	Studying the Effect of Addition Particles of Alumina (Al2O3)
title_short	Studying the Effect of Addition Particles of Alumina (Al2O3)
title_full	Studying the Effect of Addition Particles of Alumina (Al2O3)
title_fullStr	Studying the Effect of Addition Particles of Alumina (Al2O3)
title_full_unstemmed	Studying the Effect of Addition Particles of Alumina (Al2O3)
title_sort	studying the effect of addition particles of alumina (al2o3)
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2011
url	https://doaj.org/article/6cba79050e564a128928646d472883f0
work_keys_str_mv	AT sarmadiibrahim studyingtheeffectofadditionparticlesofaluminaal2o3
_version_	1718401058982592512

Studying the Effect of Addition Particles of Alumina (Al2O3)

Ejemplares similares