In situ formation of a TiN/Ti metal matrix composite gradient coating on NiTi by laser cladding and nitriding

• Published in: Surface & coatings technology Vol. 200; no. 16; pp. 4961 - 4966
• Main Authors: Man, H.C., Zhang, S., Cheng, F.T., Guo, X.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 27.04.2006; Elsevier
• Subjects: Applied sciences; Contact of materials. Friction. Wear; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Heat treatment; Laser surface alloying; Materials science; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology; Metallic coatings; Metals. Metallurgy; MMC coating; NiTi shape memory alloys; Other topics in materials science; Physics; Production techniques; Surface treatment; Thermochemical treatment and diffusion treatment; Titanium nitride; Wear; Titanium nitride; MMC coating; NiTi shape memory alloys; Wear; Laser surface alloying; Thermochemical treatment; Nickel alloys; In situ; Mechanical properties; Surface treatments; Surface alloying; Titanium nitrides; Nitrides; Titanium alloys; Metal coating; Composite materials; Shape memory alloy; Lasers; Composite coating; Nitridation; Plating; Tribology

A TiN reinforced metal matrix composite (MMC) layer was fabricated in situ on a NiTi substrate aiming at improving the wear resistance and reducing the surface Ni content in view of potential medical applications. Ti powder was preplaced on a NiTi substrate and irradiated with a high-power CW Nd:YAG...