Understanding the Mechanical Response of Friction Stir Welded In Situ Processed Aluminum Alloy Metal Matrix Composite: Experimental and Statistical Modelling Approaches

In present study, possibility of developing a new magnetic aluminum-based composite material by using principles of friction stir forming (FSF) is studied. Friction stir forming is a new materials forming technique which uses frictional heat to plasticize and plastically deform the alloy. Local magnetizing and local hardening of A6061 aluminum alloy is discussed by attempts of embedding and dispersing iron oxide powder and steel balls into A6061 aluminum alloy through spotted friction stir forming. Experiments revealed that FSF can be used to mechanically interlock steel balls and iron oxide with aluminum alloy and develop an aluminum metal matrix composite with improved magnetic properties. Results are discussed in terms of microstructural observation, hardness and magnetic properties.

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Corrosion behaviour of in-situ Zirconium Diboride (ZrB2) reinforced by Aluminium-Copper (Al-Cu) alloy metal matrix composite

Journal of Physics Conference Series ◽

10.1088/1742-6596/1349/1/012083 ◽

2019 ◽

Vol 1349 ◽

pp. 012083

Author(s):

N H Mustafa ◽

M M Mahat ◽

S M Yahaya ◽

R Rosmamuhamadani

Keyword(s):

Metal Matrix Composite ◽

Matrix Composite ◽

Metal Matrix ◽

Corrosion Behaviour ◽

Zirconium Diboride ◽

Cu Alloy ◽

Aluminium Copper ◽

Alloy Metal

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IN-SITU SYNTHETIC TiB2 PARTICULATE REINFORCED METAL MATRIX COMPOSITE COATING ON AA2024 ALUMINUM ALLOY BY LASER CLADDING TECHNOLOGY

Surface Review and Letters ◽

10.1142/s0218625x05007438 ◽

2005 ◽

Vol 12 (04) ◽

pp. 561-567 ◽

Cited By ~ 19

Author(s):

JIANG XU ◽

YIDE KAN ◽

WENJIN LIU

Keyword(s):

Aluminum Alloy ◽

Elastic Modulus ◽

Metal Matrix Composite ◽

Composite Coating ◽

Matrix Composite ◽

Laser Cladding ◽

Metal Matrix ◽

Surface Hardness ◽

Particulate Reinforced

In order to improve the wear resistance of aluminum alloy, in-situ synthesized TiB 2 and Ti 3 B 4 peritectic composite particulate reinforced metal matrix composite, formed on a 2024 aluminum alloy by laser cladding with a powder mixture of Fe -coated Boron, Ti and Al , was successfully achieved using 3-KW CW CO 2 laser. The chemical composition, microstructure and phase structure of the composite clad coating were analyzed by energy dispersive X-ray spectroscopy (EDX), SEM, AFM and XRD. The typical microstructure of the composite coating is composed of TiB 2, Ti 3 B 4, Al 3 Ti , Al 3 Fe and α- Al . The surface hardness of cladding coating increases with the amount of added Fe -coated B and Ti powder which determines the amount of TiB 2 and Ti 3 B 4 peritectic composite particulate. The nanohardness and the elastic modulus at the interface of the TiB 2 and Ti 3 B 4 peritectic composite particulate/matrix were investigated using the nanoindentation technique. The results showed that the nanohardness and the reduced elastic modulus from the peritectic composite particulate to the matrix is a gradient distribution.

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