Influence of processing technique on practical large area metal-matrix composite coating produced by laser cladding

2004 ◽  
Author(s):  
Mingxing Ma ◽  
Jinying Zhang ◽  
Wenjin Liu ◽  
Minlin Zhong ◽  
Hongjun Zhang ◽  
...  
Keyword(s):  
Metal Matrix Composite ◽  
Composite Coating ◽  
Matrix Composite ◽  
Laser Cladding ◽  
Metal Matrix ◽  
Processing Technique ◽  
Large Area

Online assessment of TiC decomposition in laser cladding of metal matrix composite coating

2017 ◽  
Vol 121 ◽  
pp. 310-320 ◽  
Author(s):  
Gopinath Muvvala ◽  
Debapriya Patra Karmakar ◽  
Ashish Kumar Nath
Keyword(s):  
Metal Matrix Composite ◽  
Composite Coating ◽  
Matrix Composite ◽  
Laser Cladding ◽  
Metal Matrix ◽  
Online Assessment

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

2005 ◽  
Vol 12 (04) ◽  
pp. 561-567 ◽  
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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