Development of Al3Ti and Al3Zr intermetallic particulate reinforced aluminum alloy AA6061 in situ composites using friction stir processing

I. Dinaharan; G. Ashok Kumar; S. J. Vijay; N. Murugan

doi:10.1016/j.matdes.2014.06.008

Development of Al₃Ti and Al₃Zr intermetallic particulate reinforced aluminum alloy AA6061 in situ composites using friction stir processing

I. Dinaharan, G. Ashok Kumar, S. J. Vijay, N. Murugan

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

59 Citations (Scopus)

Abstract

Aluminum rich intermetallic particles are potential reinforcements for discontinuously reinforced aluminum matrix composites (DRAMCs). The objective of the present work is to produce AA6061/Al₃Ti and AA6061/Al₃Zr composites using in situ casting technique and applying friction stir processing (FSP) to enhance the distribution and morphology of Al₃Ti and Al₃Zr particles. AA6061/Al₃Ti and AA6061/Al₃Zr DRAMCs were produced by the in situ reaction of inorganic salts K₂TiF₆ and K₂ZrF₆ with molten aluminum. The microstructure was observed using optical and scanning electron microscopy. AA6061/Al₃Ti DRAMC exhibited clusters of Al₃Ti particles while the segregation of needle shape Al₃Zr particles was observed in AA6061/Al₃Zr DRAMC. The prepared composites were subjected to FSP. Significant changes in the distribution and morphology of Al₃Ti and Al₃Zr particles were observed after FSP. The changes in microhardness and sliding wear behavior of AA6061/Al₃Ti and AA6061/Al₃Zr DRAMCs before and after FSP is detailed in this paper.

Original language	English
Pages (from-to)	213-222
Number of pages	10
Journal	Materials and Design
Volume	63
DOIs	https://doi.org/10.1016/j.matdes.2014.06.008
Publication status	Published - Nov 2014
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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title = "Development of Al3Ti and Al3Zr intermetallic particulate reinforced aluminum alloy AA6061 in situ composites using friction stir processing",

abstract = "Aluminum rich intermetallic particles are potential reinforcements for discontinuously reinforced aluminum matrix composites (DRAMCs). The objective of the present work is to produce AA6061/Al3Ti and AA6061/Al3Zr composites using in situ casting technique and applying friction stir processing (FSP) to enhance the distribution and morphology of Al3Ti and Al3Zr particles. AA6061/Al3Ti and AA6061/Al3Zr DRAMCs were produced by the in situ reaction of inorganic salts K2TiF6 and K2ZrF6 with molten aluminum. The microstructure was observed using optical and scanning electron microscopy. AA6061/Al3Ti DRAMC exhibited clusters of Al3Ti particles while the segregation of needle shape Al3Zr particles was observed in AA6061/Al3Zr DRAMC. The prepared composites were subjected to FSP. Significant changes in the distribution and morphology of Al3Ti and Al3Zr particles were observed after FSP. The changes in microhardness and sliding wear behavior of AA6061/Al3Ti and AA6061/Al3Zr DRAMCs before and after FSP is detailed in this paper.",

author = "I. Dinaharan and {Ashok Kumar}, G. and Vijay, {S. J.} and N. Murugan",

year = "2014",

month = nov,

doi = "10.1016/j.matdes.2014.06.008",

language = "English",

volume = "63",

pages = "213--222",

journal = "Materials and Design",

issn = "0264-1275",

publisher = "Elsevier B.V.",

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T1 - Development of Al3Ti and Al3Zr intermetallic particulate reinforced aluminum alloy AA6061 in situ composites using friction stir processing

AU - Dinaharan, I.

AU - Ashok Kumar, G.

AU - Vijay, S. J.

AU - Murugan, N.

PY - 2014/11

Y1 - 2014/11

N2 - Aluminum rich intermetallic particles are potential reinforcements for discontinuously reinforced aluminum matrix composites (DRAMCs). The objective of the present work is to produce AA6061/Al3Ti and AA6061/Al3Zr composites using in situ casting technique and applying friction stir processing (FSP) to enhance the distribution and morphology of Al3Ti and Al3Zr particles. AA6061/Al3Ti and AA6061/Al3Zr DRAMCs were produced by the in situ reaction of inorganic salts K2TiF6 and K2ZrF6 with molten aluminum. The microstructure was observed using optical and scanning electron microscopy. AA6061/Al3Ti DRAMC exhibited clusters of Al3Ti particles while the segregation of needle shape Al3Zr particles was observed in AA6061/Al3Zr DRAMC. The prepared composites were subjected to FSP. Significant changes in the distribution and morphology of Al3Ti and Al3Zr particles were observed after FSP. The changes in microhardness and sliding wear behavior of AA6061/Al3Ti and AA6061/Al3Zr DRAMCs before and after FSP is detailed in this paper.

AB - Aluminum rich intermetallic particles are potential reinforcements for discontinuously reinforced aluminum matrix composites (DRAMCs). The objective of the present work is to produce AA6061/Al3Ti and AA6061/Al3Zr composites using in situ casting technique and applying friction stir processing (FSP) to enhance the distribution and morphology of Al3Ti and Al3Zr particles. AA6061/Al3Ti and AA6061/Al3Zr DRAMCs were produced by the in situ reaction of inorganic salts K2TiF6 and K2ZrF6 with molten aluminum. The microstructure was observed using optical and scanning electron microscopy. AA6061/Al3Ti DRAMC exhibited clusters of Al3Ti particles while the segregation of needle shape Al3Zr particles was observed in AA6061/Al3Zr DRAMC. The prepared composites were subjected to FSP. Significant changes in the distribution and morphology of Al3Ti and Al3Zr particles were observed after FSP. The changes in microhardness and sliding wear behavior of AA6061/Al3Ti and AA6061/Al3Zr DRAMCs before and after FSP is detailed in this paper.

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SN - 0264-1275

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JO - Materials and Design

JF - Materials and Design

ER -

Development of Al₃Ti and Al₃Zr intermetallic particulate reinforced aluminum alloy AA6061 in situ composites using friction stir processing

Abstract

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