Influence of laser metal deposition direction in the abrasive and adhesive wear resistance of Ni-Cr-B-Si coatings

2020 ◽  
Vol 32 (2) ◽  
pp. 022045
Author(s):  
Jurandir Marcos Sá de Sousa ◽  
Adriano de Souza Pinto Pereira ◽  
Milton Pereira ◽  
Rafael Gomes Nunes Silva
Keyword(s):  
Wear Resistance ◽  
Adhesive Wear ◽  
Metal Deposition ◽  
Laser Metal Deposition ◽  
Deposition Direction

scholarly journals Additively Manufactured Al/SiC Cylindrical Structures by Laser Metal Deposition

Materials ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3331 ◽  
Author(s):  
Ainhoa Riquelme ◽  
Pilar Rodrigo ◽  
María Dolores Escalera-Rodríguez ◽  
Joaquín Rams
Keyword(s):  
Wear Resistance ◽  
Powder Metallurgy ◽  
Wear Behavior ◽  
Metal Deposition ◽  
Fabrication Process ◽  
Laser Metal Deposition ◽  
Composite Matrix ◽  
Cylindrical Structures ◽  
Preliminary Characterization

Preliminary characterization of the microstructure of Al/SiCp composites prepared by Laser Metal Deposition (LMD) was analyzed, and the microhardness and wear behavior of the materials manufactured have been evaluated. It has been determined that the combined effect of the laser speed and power is decisive for the fabrication process. The microstructure characterization shows that the presence of hygroscopic Al4C3 can be avoided by adding Ti to the composite matrix. The wear behavior of the LMD samples and their microhardness have been compared with Powder Metallurgy samples with the same composition. The LMD samples showed higher hardness and wear resistance.

Application of Laser Metal Deposition for Fabrication of Titanium Matrix Wear-Resistant Coating and its Wearing Performance

2010 ◽  
Vol 44-47 ◽  
pp. 316-320 ◽  
Author(s):  
Lan Yun Qin ◽  
Guang Yang ◽  
Wei Wang ◽  
Ming Tong ◽  
Xing Liang Wang
Keyword(s):  
Metal Deposition ◽  
Functionally Graded ◽  
Dry Sliding Wear ◽  
Laser Metal Deposition ◽  
Titanium Matrix ◽  
Wear Properties ◽  
Graded Materials ◽  
Gradient Distribution ◽  
Deposition Direction ◽  
In Situ Tic

TiC reinforced titanium matrix functionally graded materials （FGM） has been produced by processes of laser metal deposition through changing the powder feed rate of Ti and Cr3C2 powder. The OM, SEM, EDS methods were used to analyze the components and microstructure of the coatings. Microhardness and wearing resistance at room temperature of the FGM coating were examined by microhardness tester and wear tester respectively. The results show that FGM coating reinforced by in-situ TiC apparently improved hardness of Ti alloy; the microhardness can reach HV1100, and present gradient distribution along deposition direction. Dry sliding wear properties of these FGM coatings have been compared with substrate materials wearing. The observed wearing mechanisms are summarized and related to detailed microstructural observations. The results show the wear resistance of the coating can be improved by 46.6 times.

Integration of pure copper to optimize heat dissipation in injection mould inserts using laser metal deposition

2021 ◽  
Vol 33 (1) ◽  
pp. 012029
Author(s):  
Stefan Polenz ◽  
Christian Kolbe ◽  
Florian Bittner ◽  
Elena López ◽  
Frank Brückner ◽  
...  
Keyword(s):  
Heat Dissipation ◽  
Pure Copper ◽  
Metal Deposition ◽  
Laser Metal Deposition ◽  
Injection Mould

POWDER BEAM ANALYSIS OF LASER METAL DEPOSITION COAXIAL NOZZLE VIA IMAGE PROCESSING

2019 ◽  
Author(s):  
Doglas Negri ◽  
Gustavo Reis de Ascencao ◽  
Saulo Melotti ◽  
Jhonattan Gutjahr
Keyword(s):  
Image Processing ◽  
Metal Deposition ◽  
Laser Metal Deposition ◽  
Coaxial Nozzle ◽  
Beam Analysis

TRIBOLOGICAL EVALUATION OF NI-CR-B-SI COATINGS DEPOSITED BY LASER METAL DEPOSITION AND TREATED BY LASER REMELTING

2019 ◽  
Author(s):  
Jurandir Sousa ◽  
Adriano de Souza Pinto Pereira ◽  
Rafael Gomes Nunes Silva ◽  
Calil Amaral ◽  
Milton Pereira
Keyword(s):  
Metal Deposition ◽  
Laser Metal Deposition ◽  
Laser Remelting
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