Structural evolution of mechanically alloyed Al–12Si/TiB2/h-BN composite powder coating by atmospheric plasma spraying

The microstructural characteristics and mechanical properties of Ni–Al/h-BN coatings deposited using plasma spraying

“…The C2 powder presents good crystallization. In the C3 powder, the peak intensity of h-BN (0 0 0 2) is reduced, which is similar to the finding that was reported by Tekmen et al [19]. After the MA process, thick h-BN grains decomposed into many thinner layers that cleaved along the basal planes [20].…”

Wear Behavior of Plasma-Sprayed Al-Si/TiB2/h-BN Composite Coatings

“…Especially in the case of using eutectic Al-Si-alloy, in-flight particle and substrate conditions strongly affect the solidification rate and thus the forming and growth of Si-precipitations in the Al-matrix and cause a decrease in the matrix hardness due to a lowered solid-solution hardening. However, in previous studies (Ref 5,17), it has been shown that the hardness profiles of the coatings strongly depend on the amount of TiB 2 and in situ formed AlN and Al 2 O 3 during the APS process. SEM observations of Vickers hardness indentations (Fig.…”

“…1. More details regarding the preparation of the composite powder, the MA process and powder properties can be found in a previous study (Ref 17).…”

Reactive Fabrication and Effect of NbC on Microstructure and Tribological Properties of CrS Co-Based Self-Lubricating Coatings by Laser Cladding

“…Those materials possess a low friction coefficient and good wear resistance under the condition of lubricant failure or no lubrication media, and have been successfully used in aerospace systems, steam turbines, and industrial drying furnaces [ 1 , 4 , 5 , 6 , 7 ]. In general, metal matrix self-lubricating materials are utilized in a form of coating instead of bulk composite, since the friction/wear always takes place on work-piece surfaces [ 8 ], and various surface modification techniques can be employed to produce metal matrix self-lubricating coatings (MMSCs), such as plasma spraying [ 9 , 10 ], electroplating [ 11 , 12 ], physical vapor deposition [ 13 ], and laser cladding [ 14 , 15 ], among which laser cladding is very effective and offers distinct advantages such as lower porosity, a narrow heat-affected zone, and strong metallurgical bonding.…”