Fabrication of Ti10Fe5Si5Cr3Nb Composite Coatings on Ti-6Al-4V Alloy using Laser Cladding Technique

Malatji, N.; Popoola, A. P. I.; Pityana, Sisa; Lengopeng, Thabo

doi:10.1590/1980-5373-mr-2021-0080

Cited by 1 publication

(1 citation statement)

References 34 publications

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“…In addition, the solid solution effect and dispersed precipitates help to improve the strength of the LC coating and benefit the erosion-corrosion resistance. Recently, many studies have investigated Ni-Co-Cr based cladding coatings on Ti-based substrates to obtain excellent corrosion resistance [212][213][214][215]. The results indicated that a good metallurgical bond could be realized between the cladding coating and substrate without any cracks and pores by the optimization of parameters.…”

Section: Corrosion Resistant Coatingsmentioning

confidence: 99%

Research Progress of Laser Cladding on the Surface of Titanium and Its Alloys

Zhao

Xie

et al. 2023

Materials

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Titanium (Ti) and its alloys have been widely employed in aeronautical, petrochemical, and medical fields owing to their fascinating advantages in terms of their mechanical properties, corrosion resistance, biocompatibility, and so on. However, Ti and its alloys face many challenges, if they work in severe or more complex environments. The surface is always the origin of failure for Ti and its alloys in workpieces, which influences performance degradation and service life. To improve the properties and function, surface modification becomes the common process for Ti and its alloys. The present article reviews the technology and development of laser cladding on Ti and its alloys, according to the cladding technology, cladding materials, and coating function. Generally, the laser cladding parameters and auxiliary technology could influence the temperature distribution and elements diffusion in the molten pool, which basically determines the microstructure and properties. The matrix and reinforced phases play an important role in laser cladding coating, which can increase the hardness, strength, wear resistance, oxidation resistance, corrosion resistance, biocompatibility, and so on. However, the excessive addition of reinforced phases or particles can deteriorate the ductility, and thus the balance between functional properties and basic properties should be considered during the design of the chemical composition of laser cladding coatings. In addition, the interface including the phase interface, layer interface, and substrate interface plays an important role in microstructure stability, thermal stability, chemical stability, and mechanical reliability. Therefore, the substrate state, the chemical composition of the laser cladding coating and substrate, the processing parameters, and the interface comprise the critical factors which influence the microstructure and properties of the laser cladding coating prepared. How to systematically optimize the influencing factors and obtain well-balanced performance are long-term research issues.

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Section: Corrosion Resistant Coatingsmentioning

confidence: 99%