Influence of in situ formed ZrB2 particles on microstructure and mechanical properties of AA6061 metal matrix composites

I. Dinaharan; N. Murugan; Siva Parameswaran

doi:10.1016/j.msea.2011.04.033

Influence of in situ formed ZrB2 particles on microstructure and mechanical properties of AA6061 metal matrix composites

I. Dinaharan, N. Murugan, Siva Parameswaran

Mechanical Engineering

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

150 Scopus citations

Abstract

Particulate reinforced metal matrix composites (PMMCs) have gained considerable amount of research emphasis and attention in the present era. Research is being carried out across the globe to produce new combination of PMMCs. PMMCs are prepared by adding a variety of ceramic particles with monolithic alloys using several techniques. An attempt has been made to produce aluminium metal matrix composites reinforced with zirconium boride (ZrB₂) particles by the in situ reaction of K₂ZrF₆ and KBF₄ salts with molten aluminium. The influence of in situ formed ZrB₂ particles on the microstructure and mechanical properties of AA6061 alloy was studied in this work. The in situ formed ZrB₂ particles significantly refined the microstructure and enhanced the mechanical properties of AA6061 alloy. The weight percentage of ZrB₂ was varied from 0 to 10 in steps of 2.5. Improvement of hardness, ultimate tensile strength and wear resistance of AA6061 alloy was observed with the increase in ZrB₂ content.

Original language	English
Pages (from-to)	5733-5740
Number of pages	8
Journal	Materials Science and Engineering A
Volume	528
Issue number	18
DOIs	https://doi.org/10.1016/j.msea.2011.04.033
State	Published - Jul 15 2011

Keywords

Casting
Mechanical properties
Metal matrix composites
Microstructure

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10.1016/j.msea.2011.04.033

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title = "Influence of in situ formed ZrB2 particles on microstructure and mechanical properties of AA6061 metal matrix composites",

abstract = "Particulate reinforced metal matrix composites (PMMCs) have gained considerable amount of research emphasis and attention in the present era. Research is being carried out across the globe to produce new combination of PMMCs. PMMCs are prepared by adding a variety of ceramic particles with monolithic alloys using several techniques. An attempt has been made to produce aluminium metal matrix composites reinforced with zirconium boride (ZrB2) particles by the in situ reaction of K2ZrF6 and KBF4 salts with molten aluminium. The influence of in situ formed ZrB2 particles on the microstructure and mechanical properties of AA6061 alloy was studied in this work. The in situ formed ZrB2 particles significantly refined the microstructure and enhanced the mechanical properties of AA6061 alloy. The weight percentage of ZrB2 was varied from 0 to 10 in steps of 2.5. Improvement of hardness, ultimate tensile strength and wear resistance of AA6061 alloy was observed with the increase in ZrB2 content.",

keywords = "Casting, Mechanical properties, Metal matrix composites, Microstructure",

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

note = "Funding Information: The authors are grateful to the Management and Department of Mechanical Engineering, Coimbatore Institute of Technology, Coimbatore, India for extending the facilities to carry out this investigation. The authors also acknowledge the financial support rendered by All India Council for Technical Education, Govt. of India . Authors are also thankful to Mr. S.J. Vijay, Mr. K. Kalaiselvan, Mr. B. Ashok Kumar, Mr. M. Thambidurai, Mr. A. Raja, Mr. A.S. Samson Ratnakumar, Mr. S. Vijaya Ganesh, Mr. Palanisamy, Mr. Gnanaprakasam and Mr. Mahalingam for their assistance.",

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AU - Dinaharan, I.

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AU - Parameswaran, Siva

N1 - Funding Information: The authors are grateful to the Management and Department of Mechanical Engineering, Coimbatore Institute of Technology, Coimbatore, India for extending the facilities to carry out this investigation. The authors also acknowledge the financial support rendered by All India Council for Technical Education, Govt. of India . Authors are also thankful to Mr. S.J. Vijay, Mr. K. Kalaiselvan, Mr. B. Ashok Kumar, Mr. M. Thambidurai, Mr. A. Raja, Mr. A.S. Samson Ratnakumar, Mr. S. Vijaya Ganesh, Mr. Palanisamy, Mr. Gnanaprakasam and Mr. Mahalingam for their assistance.

PY - 2011/7/15

Y1 - 2011/7/15

N2 - Particulate reinforced metal matrix composites (PMMCs) have gained considerable amount of research emphasis and attention in the present era. Research is being carried out across the globe to produce new combination of PMMCs. PMMCs are prepared by adding a variety of ceramic particles with monolithic alloys using several techniques. An attempt has been made to produce aluminium metal matrix composites reinforced with zirconium boride (ZrB2) particles by the in situ reaction of K2ZrF6 and KBF4 salts with molten aluminium. The influence of in situ formed ZrB2 particles on the microstructure and mechanical properties of AA6061 alloy was studied in this work. The in situ formed ZrB2 particles significantly refined the microstructure and enhanced the mechanical properties of AA6061 alloy. The weight percentage of ZrB2 was varied from 0 to 10 in steps of 2.5. Improvement of hardness, ultimate tensile strength and wear resistance of AA6061 alloy was observed with the increase in ZrB2 content.

AB - Particulate reinforced metal matrix composites (PMMCs) have gained considerable amount of research emphasis and attention in the present era. Research is being carried out across the globe to produce new combination of PMMCs. PMMCs are prepared by adding a variety of ceramic particles with monolithic alloys using several techniques. An attempt has been made to produce aluminium metal matrix composites reinforced with zirconium boride (ZrB2) particles by the in situ reaction of K2ZrF6 and KBF4 salts with molten aluminium. The influence of in situ formed ZrB2 particles on the microstructure and mechanical properties of AA6061 alloy was studied in this work. The in situ formed ZrB2 particles significantly refined the microstructure and enhanced the mechanical properties of AA6061 alloy. The weight percentage of ZrB2 was varied from 0 to 10 in steps of 2.5. Improvement of hardness, ultimate tensile strength and wear resistance of AA6061 alloy was observed with the increase in ZrB2 content.

KW - Casting

KW - Mechanical properties

KW - Metal matrix composites

KW - Microstructure

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Influence of in situ formed ZrB2 particles on microstructure and mechanical properties of AA6061 metal matrix composites

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Keywords

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