Effect of laser power on the microstructure and corrosion resistance of laser cladding Mo2NiB2 coatings
Source abstract
Abstract
In this study, Mo2NiB2 coatings were prepared by the laser cladding technique and the relationship between coating microstructure and corrosion resistance with cladding power was analyzed. The results showed that Mo2NiB2 was reactively generated in all coatings while Mo2FeB2 and (Fe, Ni) were also present in the coatings due to dilution of the substrate. There was a good metallurgical bond between the coating and the substrate. The white cermet phase and black Fe-rich phase alternated within the coatings. As observed from the surface, the ceramic phase spreads out in a flattened shape and the black Fe-rich phase was present in a large number of pores. Due to the overdilution of the substrate, the volume of the ceramic phase decreased at a power of 800 W and the Fe content within the coating increased. The corrosion resistance of the coatings increased as the laser power increased from 500 to 700 W. Then the corrosion resistance of the coatings decreased at 800 W due to the excess Fe content and the decrease in the relative content of Mo2NiB2 and (Fe, Ni). Mo2NiB2 coating prepared at 700 W has the best corrosion resistance.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advanced materials and composites · High Entropy Alloys Studies · Intermetallics and Advanced Alloy Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Merchant Marine College, Shanghai Maritime University 1 , Shanghai 201306, China
Shanghai Songjiang Municipal Administration of Landscaping and City Appearance 2 , Shanghai 201600, China
Shanghai Nanotechnology Promotion Center 3 , Shanghai 200237, China
Funding
National Natural Science Foundation of China · Shanghai High-Level Local University Team · The Science and Technology Commission of Shanghai Municipality and Shanghai Engineering Engineering Research Center of Ship Intelligent Maintenance and Energy Efficiency Under
References (23)
Show source-provided references
1. Wear and high-temperature stability of TiCN-WC-Co-Cr3C2-HfC-Si3N4 cermets10.1007/s41779-023-00874-y ↗
2. Effect of Cr3C2 addition on the microstructure, magnetic and mechanical properties of TiC-TiN-WC-C-Ni cermets10.1016/j.vacuum.2023.112088 ↗
3. Improvement of laser-cladded surfaces with added nanomaterials
4. Processing of ZrB2-15 wt. % Cu composites via spark plasma sintering
5. Comparative investigation on the stability, electronic structures and mechanical properties of Mo2FeB2 and Mo2NiB2 ternary borides by first-principles calculations10.1016/j.rinp.2019.102698 ↗
6. High-temperature compressive properties and tribological behaviour of Mo2NiB2-Ni cermets10.1016/j.ceramint.2019.06.058 ↗
7. Comparison of structure and properties of Mo2FeB2-based cermets prepared by welding metallurgy and vacuum sintering10.3390/ma14010046 ↗
8. Pressure-induced superconductivity at 32 K in MoB210.1093/nsr/nwad034 ↗
9. Prediction for crystal growth rates in borides under supercooled temperature conditions10.2109/jcersj2.23111 ↗
10. Ternary Mo2NiB2 as a superior bifunctional electrocatalyst for overall water splitting10.1002/smll.202104303 ↗
11. Effect of antimony on the reaction of hafnium diboride with iridium10.1134/s0036023622601052 ↗
12. Elucidating the pseudocapacitive mechanism of ternary Co-Ni-B electrodes-towards miniaturization and superior electrochemical performance for building outmatched supercapacitors10.1016/j.electacta.2022.140003 ↗
13. Zinc doping enhances the electrocatalytic properties of cobalt borides for the hydrogen evolution reaction10.3389/fenrg.2022.901395 ↗
14. On the enhanced wear resistance of ultra-coarse WC-Co cemented carbides by WCoB addition10.1016/j.jallcom.2021.162449 ↗
15. Evaluation of braze bonded hard complex boride based coatings for sliding, erosion and abrasion wear10.1016/j.wear.2008.12.060 ↗
16. Study on W-rich M3B2 borides in a 9Cr3W3CoB heat-resistant steel10.1016/j.jmrt.2020.12.054 ↗
17. The effect of carbon on phase composition and microstructure of cermets based on Mo2NiB2 boride10.1016/j.ijrmhm.2021.105650 ↗
18. Research and development status of laser cladding on magnesium alloys: A review10.1016/j.optlaseng.2017.02.007 ↗
19. Investigation on microstructure, hardness, and corrosion resistance of Mo-Ni-B coatings prepared by laser cladding technique10.3390/coatings9120856 ↗
20. Microstructure and properties of laser-clad Mo2NiB2 cermet coating on steel substrate10.1002/srin.201400065 ↗
21. Laser cladding Fe-base alloy coatings structure for marine hydraulic column10.1166/sam.2019.3574 ↗
22. Effect of LaB6 doping on the microstructure, microhardness and corrosion behavior of laser cladded FeCoNiCrMo coating on Ti6Al4V10.1016/j.surfcoat.2023.129592 ↗
23. CPE analysis by local electrochemical impedance spectroscopy10.1016/j.electacta.2005.02.128 ↗