This paper presents the method of preparation and study results Stellite 6 laser surface alloyed (LSA) with rhenium using na LDF diode (4000 W). During this process, a powder was introduced onto Co-based alloy. The possibility improving wear corrosion resistance properties is interesting worth investigating. selected process parameters: power 900 W, feed rate in range 1.92–3.83 g/min, necessari...

In this study, four protective coating materials: Inconel 718, 625, Alloy 33 and Stellite 6 were deposited on 16Mo3 steel tubes by means of CMT (Cold Metal Transfer), as an advanced version MAG (Metal Active Gas) welding method. the next step, surface was remelted TIG (Tungsten Inert SEM microstructure coatings–substrate has been reported, EDX-researched chemical composition coatings compared t...

A dual layer PVD coating consisting of a CrN on top CoCrMo(C) S-phase underlayer (CrN/S) was deposited low-carbon wrought CoCrMo alloy discs and Stellite® 21 spheres. The tribocorrosion response the uncoated tribopairs coated CrN/S studied under reciprocating sliding conditions in Ringer's diluted foetal bovine serum (FBS) solutions anodic potential elastic contact for time 2 h. Compared to tri...

This paper aims to compare the tribo-mechanical properties and structure–property relationships of a wear resistant cobalt-based alloy produced via two different manufacturing routes, namely sand casting and powder consolidation by hot isostatic pressing (HIPing). The alloy had a nominal wt % composition of Co–33Cr–17.5W–2.5C, which is similar to the composition of commercially available Stelli...

Laser metal forming is an attractive process for rapid prototyping or the rebuilding of worn parts. However, large tensile stress may arise in layers deposited by laser melting of powder. A potential solution is to preheat the substrate before and during deposition of layers to introduce sufficient contraction during cooling in the substrate to modify the residual stress distribution in the dep...