Microstructure and some properties of aluminium alloy AA6061 reinforced in situ formed zirconium diboride particulate stir cast composite

I. Dinaharan; N. Murugan

doi:10.1179/1743133613Y.0000000097

Microstructure and some properties of aluminium alloy AA6061 reinforced in situ formed zirconium diboride particulate stir cast composite

I. Dinaharan, N. Murugan

Anna University

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

The objective of this work is to fabricate aluminium alloy AA6061 reinforced with ZrB₂ particles (10 wt-%) by the in situ reaction of K₂ZrF₆ and KBF₄ salts with molten aluminium. The microstructure, tensile strength, wear resistance and corrosion rate of the fabricated composite were compared with those of matrix alloy. The in situ formed ZrB₂ particles were uniformly dispersed in the aluminium matrix predominantly concentrated in inter granular regions and refined the microstructure of the matrix alloy. The incorporation of in situ formed ZrB₂ particles into the aluminium matrix improved tensile strength and wear resistance but reduced ductility and corrosion resistance.

Original language	English
Pages (from-to)	115-121
Number of pages	7
Journal	International Journal of Cast Metals Research
Volume	27
Issue number	2
DOIs	https://doi.org/10.1179/1743133613Y.0000000097
Publication status	Published - Apr 2014
Externally published	Yes

Keywords

Aluminium
In situ stir casting
Metal matrix composites
Zirconium diboride

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1179/1743133613Y.0000000097

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title = "Microstructure and some properties of aluminium alloy AA6061 reinforced in situ formed zirconium diboride particulate stir cast composite",

abstract = "The objective of this work is to fabricate aluminium alloy AA6061 reinforced with ZrB2 particles (10 wt-%) by the in situ reaction of K2ZrF6 and KBF4 salts with molten aluminium. The microstructure, tensile strength, wear resistance and corrosion rate of the fabricated composite were compared with those of matrix alloy. The in situ formed ZrB2 particles were uniformly dispersed in the aluminium matrix predominantly concentrated in inter granular regions and refined the microstructure of the matrix alloy. The incorporation of in situ formed ZrB2 particles into the aluminium matrix improved tensile strength and wear resistance but reduced ductility and corrosion resistance.",

keywords = "Aluminium, In situ stir casting, Metal matrix composites, Zirconium diboride",

author = "I. Dinaharan and N. Murugan",

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doi = "10.1179/1743133613Y.0000000097",

language = "English",

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T1 - Microstructure and some properties of aluminium alloy AA6061 reinforced in situ formed zirconium diboride particulate stir cast composite

AU - Dinaharan, I.

AU - Murugan, N.

PY - 2014/4

Y1 - 2014/4

N2 - The objective of this work is to fabricate aluminium alloy AA6061 reinforced with ZrB2 particles (10 wt-%) by the in situ reaction of K2ZrF6 and KBF4 salts with molten aluminium. The microstructure, tensile strength, wear resistance and corrosion rate of the fabricated composite were compared with those of matrix alloy. The in situ formed ZrB2 particles were uniformly dispersed in the aluminium matrix predominantly concentrated in inter granular regions and refined the microstructure of the matrix alloy. The incorporation of in situ formed ZrB2 particles into the aluminium matrix improved tensile strength and wear resistance but reduced ductility and corrosion resistance.

AB - The objective of this work is to fabricate aluminium alloy AA6061 reinforced with ZrB2 particles (10 wt-%) by the in situ reaction of K2ZrF6 and KBF4 salts with molten aluminium. The microstructure, tensile strength, wear resistance and corrosion rate of the fabricated composite were compared with those of matrix alloy. The in situ formed ZrB2 particles were uniformly dispersed in the aluminium matrix predominantly concentrated in inter granular regions and refined the microstructure of the matrix alloy. The incorporation of in situ formed ZrB2 particles into the aluminium matrix improved tensile strength and wear resistance but reduced ductility and corrosion resistance.

KW - Aluminium

KW - In situ stir casting

KW - Metal matrix composites

KW - Zirconium diboride

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M3 - Article

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SN - 1364-0461

VL - 27

SP - 115

EP - 121

JO - International Journal of Cast Metals Research

JF - International Journal of Cast Metals Research

IS - 2

ER -

Microstructure and some properties of aluminium alloy AA6061 reinforced in situ formed zirconium diboride particulate stir cast composite

Abstract

Keywords

ASJC Scopus subject areas

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