Integral method of preparation and fabrication of metal matrix composite: Selective laser melting of in-situ nano/submicro-sized carbides reinforced iron matrix composites

2017 ◽  
Vol 707 ◽  
pp. 478-487 ◽  
Author(s):  
Bo Song ◽  
Zhiwei Wang ◽  
Qian Yan ◽  
Yuanjie Zhang ◽  
Jinliang Zhang ◽  
...  
Keyword(s):  
Metal Matrix Composite ◽  
Selective Laser Melting ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Integral Method ◽  
Matrix Composites ◽  
Laser Melting ◽  
Iron Matrix

In-Situ Synthesis of Metal Matrix Composite Coating with Laser Melting-Solidifying Processes

2006 ◽  
Vol 313 ◽  
pp. 139-144 ◽  
Author(s):  
Lin Geng ◽  
Qing Wu Meng ◽  
Yan Bin Chen
Keyword(s):  
Metal Matrix Composite ◽  
Composite Coating ◽  
Matrix Composite ◽  
Metal Matrix ◽  
High Energy ◽  
Hexagonal Prism ◽  
Laser Melting ◽  
Dendrite Morphology ◽  
Melting Pool

In order to improve wear resistance of titanium alloy, with pre-placed B4C and NiCrBSi powders on Ti-6Al-4V substrate, a process of laser melting-solidifying metal matrix composite coating was studied. The coating was examined using XRD, SEM and EDS. A good metal matrix composite coating was obtained in a proper laser process. There is a metallurgical interface bonding between the coating and the substrate. During laser melting-solidifying process, high energy of laser melted the pre-placed powders and a part of Ti-6Al-4V substrate, which made Ti extend into a melting pool. A reaction between Ti and B4C took place in the melting pool, which in-situ synthesized TiB2 and TiC reinforcements in the coating. The composite coating mainly consists of γ-Ni matrix, TiB2, TiC and CrB reinforcements. Microstructure of the reinforcements obtained using the laser melting-solidifying is not as same as that of reinforcements obtained using general producing methods. Due to high cooling rate of the melting pool, TiC nucleated primarily and grew up in dendrite morphology from undercooled liquid. Encircling TiC, TiB2 precipitated later and grew up in hexagonal prism morphology. TiC and TiB2 formed an inlaid microstructure.

scholarly journals The Effect of using Repetitively Pulsed Laser Radiation in Selective Laser Melting when Creating a Metal Matrix Composite Ti-6Al-4V – B4C.

2021 ◽  
Author(s):  
Alexander Golyshev ◽  
Alexander Malikov ◽  
Anatoliy Orishich ◽  
Mikhail Gulov ◽  
Alexei Ancharov
Keyword(s):  
Mechanical Properties ◽  
Laser Radiation ◽  
Metal Matrix Composite ◽  
Selective Laser Melting ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Pulsed Laser ◽  
Laser Melting ◽  
Properties Of Coatings ◽  
Pulsed Laser Radiation

Abstract A metal-matrix composite based on Ti-6Al-4V – B4C with TiB, TiB2 and TiC inclusions was successfully obtained as a result of in-situ synthesis using repetitively pulsed laser radiation. For the first time, the phase composition of the obtained metal-matrix composite was studied using synchrotron radiation. A comparison of the effect of using continuous and pulsed-periodic radiation in selective laser melting on the microstructure and mechanical properties of coatings was made. The use of repetitively pulsed radiation made it possible to form more uniform structures and to improve the mechanical properties of metal-matrix coatings in comparison with the continuous mode of exposure. It has been established that the use of repetitively pulsed radiation and the formation of TiB2, TiB, TiC phases made it possible to increase the wear resistance of the formed composite by a factor of 6 in comparison with the Ti-6Al-4V metal coating.

Selective Laser Melting to Manufacture “In Situ” Metal Matrix Composites: A Review

2019 ◽  
Vol 21 (3) ◽  
pp. 1801244 ◽  
Author(s):  
Sasan Dadbakhsh ◽  
Raya Mertens ◽  
Liang Hao ◽  
Jan Van Humbeeck ◽  
Jean‐Pierre Kruth
Keyword(s):  
Metal Matrix Composites ◽  
Selective Laser Melting ◽  
Metal Matrix ◽  
Matrix Composites ◽  
Laser Melting

Modeling of Iron Matrix Composite Based on In Situ and Laser Coating Technology and Optimization of Parameters

2010 ◽  
Vol 156-157 ◽  
pp. 142-147
Author(s):  
Lei Yang ◽  
Ying Ying Chen ◽  
Wen Ge Li ◽  
Xiao Yan Sun
Keyword(s):  
Matrix Composite ◽  
Metal Matrix ◽  
Orthogonal Arrays ◽  
Matrix Composites ◽  
Optimal Process ◽  
Iron Matrix ◽  
Coating Technology ◽  
Laser Coating ◽  
The Relationship

The preparation of reinforced metal matrix composites used by the method of in-situ and laser cladding has become one of the interesting topics in the metal matrix composite materials. This method is adopted here to prepare the reinforced iron matrix exterior composites, and the critical task is to obtain the optimized technique parameters. The optimal process of manufacturing composite is traditionally defined via experimental methods of orthogonal arrays design, which is costly and can’t get the exact parameters. Hence, we firstly use the artificial neural network to fit the relationship between the performances of the composite and the parameters so as to construct the model of the process. And the parameters are optimized by genetic algorithm. The results further verified that the method in this paper is effective.

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