In-Situ Formed Al3Zr Compounds Reinforced Al Composites and Tribological Application

An Al3Zr-reinforced Al matrix composite using metal powders was fabricated via in-situ synthesis in vacuum; these were subjected to a pin-on-disc wear test with a SUS304 disc specimen under oil lubrication. The elemental mixture of Al and ZrH2 particles...

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Main Authors:	Junko Umeda, Nodoka Nishimura, Hiroko Fujii, Lei Jia, Katsuyoshi Kondoh
Format:	Article
Language:	English
Published:	MDPI AG 2021-02-01
Series:	Crystals
Subjects:	solid-state reaction in vacuum In-situ formed Al<sub>3</sub>Zr tribology powder metallurgy
Online Access:	https://www.mdpi.com/2073-4352/11/3/227

id	doaj-eadda38350b541dd87c0f110b2b52d45
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spelling	doaj-eadda38350b541dd87c0f110b2b52d452021-02-26T00:05:06ZengMDPI AGCrystals2073-43522021-02-011122722710.3390/cryst11030227In-Situ Formed Al<sub>3</sub>Zr Compounds Reinforced Al Composites and Tribological ApplicationJunko Umeda0Nodoka Nishimura1Hiroko Fujii2Lei Jia3Katsuyoshi Kondoh4Joining and Welding Research Institute, Osaka University, Ibaraki, Osaka 5670047, JapanDepartment of Mechanical Engineering, Osaka University, Suita, Osaka 5670047, Japan Joining and Welding Research Institute, Osaka University, Ibaraki, Osaka 5670047, JapanSchool of Materials Science and Engineering, Xi’an University of Technology, Xi’an, China 710048Joining and Welding Research Institute, Osaka University, Ibaraki, Osaka 5670047, JapanAn Al<sub>3</sub>Zr-reinforced Al matrix composite using metal powders was fabricated via in-situ synthesis in vacuum; these were subjected to a pin-on-disc wear test with a SUS304 disc specimen under oil lubrication. The elemental mixture of Al and ZrH<sub>2</sub> particles was sintered in vacuum for the in-situ-formed Al<sub>3</sub>Zr. ZrH<sub>2</sub> particles were thermally decomposed in the reaction with the Al matrix to form hard Al<sub>3</sub>Zr intermetallic compounds. The friction coefficient and wear volume values of the Al–Al<sub>3</sub>Zr composites were significantly lower than those of the pure Al specimen. This is attributed to the uniform dispersion of Al<sub>3</sub>Zr particles in the Al matrix, which prevented the metallurgical bond from falling and blocked the direct contact between the Al matrix and SUS304 disc.https://www.mdpi.com/2073-4352/11/3/227solid-state reaction in vacuumIn-situ formed Al<sub>3</sub>Zrtribologypowder metallurgy
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Junko Umeda Nodoka Nishimura Hiroko Fujii Lei Jia Katsuyoshi Kondoh
spellingShingle	Junko Umeda Nodoka Nishimura Hiroko Fujii Lei Jia Katsuyoshi Kondoh In-Situ Formed Al<sub>3</sub>Zr Compounds Reinforced Al Composites and Tribological Application Crystals solid-state reaction in vacuum In-situ formed Al<sub>3</sub>Zr tribology powder metallurgy
author_facet	Junko Umeda Nodoka Nishimura Hiroko Fujii Lei Jia Katsuyoshi Kondoh
author_sort	Junko Umeda
title	In-Situ Formed Al<sub>3</sub>Zr Compounds Reinforced Al Composites and Tribological Application
title_short	In-Situ Formed Al<sub>3</sub>Zr Compounds Reinforced Al Composites and Tribological Application
title_full	In-Situ Formed Al<sub>3</sub>Zr Compounds Reinforced Al Composites and Tribological Application
title_fullStr	In-Situ Formed Al<sub>3</sub>Zr Compounds Reinforced Al Composites and Tribological Application
title_full_unstemmed	In-Situ Formed Al<sub>3</sub>Zr Compounds Reinforced Al Composites and Tribological Application
title_sort	in-situ formed al<sub>3</sub>zr compounds reinforced al composites and tribological application
publisher	MDPI AG
series	Crystals
issn	2073-4352
publishDate	2021-02-01
description	An Al<sub>3</sub>Zr-reinforced Al matrix composite using metal powders was fabricated via in-situ synthesis in vacuum; these were subjected to a pin-on-disc wear test with a SUS304 disc specimen under oil lubrication. The elemental mixture of Al and ZrH<sub>2</sub> particles was sintered in vacuum for the in-situ-formed Al<sub>3</sub>Zr. ZrH<sub>2</sub> particles were thermally decomposed in the reaction with the Al matrix to form hard Al<sub>3</sub>Zr intermetallic compounds. The friction coefficient and wear volume values of the Al–Al<sub>3</sub>Zr composites were significantly lower than those of the pure Al specimen. This is attributed to the uniform dispersion of Al<sub>3</sub>Zr particles in the Al matrix, which prevented the metallurgical bond from falling and blocked the direct contact between the Al matrix and SUS304 disc.
topic	solid-state reaction in vacuum In-situ formed Al<sub>3</sub>Zr tribology powder metallurgy
url	https://www.mdpi.com/2073-4352/11/3/227
work_keys_str_mv	AT junkoumeda insituformedalsub3subzrcompoundsreinforcedalcompositesandtribologicalapplication AT nodokanishimura insituformedalsub3subzrcompoundsreinforcedalcompositesandtribologicalapplication AT hirokofujii insituformedalsub3subzrcompoundsreinforcedalcompositesandtribologicalapplication AT leijia insituformedalsub3subzrcompoundsreinforcedalcompositesandtribologicalapplication AT katsuyoshikondoh insituformedalsub3subzrcompoundsreinforcedalcompositesandtribologicalapplication
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In-Situ Formed Al<sub>3</sub>Zr Compounds Reinforced Al Composites and Tribological Application

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