Development and characterization of laser clad high temperature self-lubricating wear resistant composite coatings on Ti–6Al–4V alloy

Effect of high dilution on the in situ synthesis of Ni–Zr/Zr–Si(B, C) reinforced composite coating on zirconium alloy substrate by laser cladding

“…For those substrates, in order to obtain in-situ synthesized reinforcements, some adscititious particles (e.g., WC, TiC and Al 2 O 3 ) were needed to make decomposition before in-situ synthesizing in the molten pool. However, due to the violent and complex reactions in molten pool in short time, it is difficult to control the microstructure evolution using mixed powders or adding reinforced particles during laser cladding [18][19][20][21][22][23]. Yue et al [24] could not be ignored when cladding Ni-Cr-B-Si coatings on the surface of zirconium alloys.…”

Laser Surface Modification — A Focus on the Wear Degradation of Titanium Alloy

“…In addition, thermal spray coatings possess low coating density and limited bond strength between the coating and the substrate. It is pertinent to note that these techniques give rise to many difficulties, such as poor adherence, lower bonding strength, and some defect at the interface [20]. However, laser surface modification techniques have been established by researchers to improve mechanical and tribological properties of materials.…”

Effect of scanning speeds on microstructure and wear behavior of laser-processed NiCr–Cr3C2–MoS2–CeO2 on 38CrMoAl steel

“…8b and c). Some pits were ground off by the counter ball as wear debris to promote the three-body abrasive wear between the sliding surfaces [29]. The worn surface of specimen D was also covered by oxide films.However, a large area of spalling and pits of oxide film could be detected in Fig.…”