Corrosion behavior of a cobaltchromium-molybdenum alloy

Effect of thermal treatment and applied potential on the electrochemical behaviour of CoCrMo biomedical alloy

“…Therefore, the study of the electrochemical behaviour of Co-based alloys is one of the key-factor for improving the biocompatibility of implants. The mechanism of the corrosion resistance of CoCrMo alloys is explained by the spontaneous formation of a protective film with dielectric properties [17]. The composition of this layer is predominantly Cr 2 O 3 oxide with some minor contribution of other oxides (Co-and Mo-oxides, especially if the film is air formed) [18].…”

Microstructures and Hardness/Wear Performance of High-Carbon Stellite Alloys Containing Molybdenum

“…The well-known alloy within this family is Stellite 21, which has excellent resistance to thermal and mechanical shock and is resistant to oxidizing and reducing atmospheres up to 1423 K (1150°C). [13] It is popularly used for valve trim for high pressure steam, oil, and petrochemical processes, [14][15][16] and orthopedic implants as well. [17][18][19] High-C CoCrMo Stellite alloys have been developed in recent years, since high-C CoCrW alloys generally have less corrosion resistance although they are very wear resistant.…”

Microstructural evolution during isothermal aging and strain-induced transformation followed by isothermal aging in Co-Cr-Mo-C alloy: A comparative study

“…Nowadays, the main applications of the Co-Cr-Mo alloys are the dental skeletal structures and orthopedic implants such as screws, pins, and plates [1][2][3][4][5]. In addition to chemical composition, performing heat treatment in Co-base alloys contributes to the formation of various microstructural features including stacking faults, twins and precipitation of carbides which can affect the final properties of the alloy [6][7][8].…”