Friction stir processing of intermetallic particulate reinforced aluminum matrix composite

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

doi:10.5185/amlett.2012.7398

Friction stir processing of intermetallic particulate reinforced aluminum matrix composite

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

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

12 Citations (Scopus)

Abstract

Friction stir processing (FSP) is a novel solid state technique to refine the microstructure of metallic materials. The objective of this work is to apply FSP to change the morphology and distribution of intermetallic particles and achieve property enhancement. AA6061/8wt. % Al₃Zr composite was produced by the in situ reaction of molten aluminum and inorganic salt K₂ZrF₆. Optical and scanning electron micrographs revealed a uniform distribution of needle shape Al₃Zr particles in the aluminum matrix. The Al₃Zr particles were located in the inter granular spaces. A double pass FSP was carried out using a tool rotational speed of 1200 rpm, processing speed of 50 mm/min and axial force of 8 kN. A tool made of HCHCr steel; oil hardened to 62 HRC, having a hexagonal profile was used. The needle shape Al₃Zr particles were fragmented and converted into a spherical shape subsequent to FSP which resulted an increase in the hardness of the composite.

Original language	English
Pages (from-to)	230-234
Number of pages	5
Journal	Advanced Materials Letters
Volume	4
Issue number	3
DOIs	https://doi.org/10.5185/amlett.2012.7398
Publication status	Published - Mar 2013
Externally published	Yes

Keywords

Casting
Friction stir processing
Intermetallic particle
Metal matrix composite

ASJC Scopus subject areas

General Materials Science

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10.5185/amlett.2012.7398

Cite this

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title = "Friction stir processing of intermetallic particulate reinforced aluminum matrix composite",

abstract = "Friction stir processing (FSP) is a novel solid state technique to refine the microstructure of metallic materials. The objective of this work is to apply FSP to change the morphology and distribution of intermetallic particles and achieve property enhancement. AA6061/8wt. % Al3Zr composite was produced by the in situ reaction of molten aluminum and inorganic salt K2ZrF6. Optical and scanning electron micrographs revealed a uniform distribution of needle shape Al3Zr particles in the aluminum matrix. The Al3Zr particles were located in the inter granular spaces. A double pass FSP was carried out using a tool rotational speed of 1200 rpm, processing speed of 50 mm/min and axial force of 8 kN. A tool made of HCHCr steel; oil hardened to 62 HRC, having a hexagonal profile was used. The needle shape Al3Zr particles were fragmented and converted into a spherical shape subsequent to FSP which resulted an increase in the hardness of the composite.",

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

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AU - Ashok Kumar, G.

AU - Dinaharan, I.

AU - Vijay, S. J.

AU - Murugan, N.

PY - 2013/3

Y1 - 2013/3

N2 - Friction stir processing (FSP) is a novel solid state technique to refine the microstructure of metallic materials. The objective of this work is to apply FSP to change the morphology and distribution of intermetallic particles and achieve property enhancement. AA6061/8wt. % Al3Zr composite was produced by the in situ reaction of molten aluminum and inorganic salt K2ZrF6. Optical and scanning electron micrographs revealed a uniform distribution of needle shape Al3Zr particles in the aluminum matrix. The Al3Zr particles were located in the inter granular spaces. A double pass FSP was carried out using a tool rotational speed of 1200 rpm, processing speed of 50 mm/min and axial force of 8 kN. A tool made of HCHCr steel; oil hardened to 62 HRC, having a hexagonal profile was used. The needle shape Al3Zr particles were fragmented and converted into a spherical shape subsequent to FSP which resulted an increase in the hardness of the composite.

AB - Friction stir processing (FSP) is a novel solid state technique to refine the microstructure of metallic materials. The objective of this work is to apply FSP to change the morphology and distribution of intermetallic particles and achieve property enhancement. AA6061/8wt. % Al3Zr composite was produced by the in situ reaction of molten aluminum and inorganic salt K2ZrF6. Optical and scanning electron micrographs revealed a uniform distribution of needle shape Al3Zr particles in the aluminum matrix. The Al3Zr particles were located in the inter granular spaces. A double pass FSP was carried out using a tool rotational speed of 1200 rpm, processing speed of 50 mm/min and axial force of 8 kN. A tool made of HCHCr steel; oil hardened to 62 HRC, having a hexagonal profile was used. The needle shape Al3Zr particles were fragmented and converted into a spherical shape subsequent to FSP which resulted an increase in the hardness of the composite.

KW - Casting

KW - Friction stir processing

KW - Intermetallic particle

KW - Metal matrix composite

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DO - 10.5185/amlett.2012.7398

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SP - 230

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JO - Advanced Materials Letters

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ER -

Friction stir processing of intermetallic particulate reinforced aluminum matrix composite

Abstract

Keywords

ASJC Scopus subject areas

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