Friction and wear properties of zirconium and niobium in a hydrogen environment

Friction and wear properties of Fe–Si intermetallic compounds in ethyl alcohol

“…10, although it is also unclear why this difference occurred. The formation of oxide films generally prevents adhesive wear, which increases the friction coefficient [17,18]. It is considered that the larger amount of the iron oxides on the worn surface of the Fe-70.5at% Si disk specimen of the Fe-70.5at% Si/Si 3 N 4 tribopair than on that of the Fe-70.5at% Si/SiC tribopair caused the lower and more stable friction coefficients of the Fe-70.5at% Si/Si 3 N 4 tribopair than the Fe-70.5at% Si/SiC tribopair.…”

Effects of Residual Gases on Tribo-Chemical Reaction of Nickel in Hydrogen Gas Atmosphere

“…Here, we reconsider the apparent coefficient of friction related to the tribo-chemical reaction of the hydrogen and water as equation (14).…”

“…Furthermore, they pointed out that metal hydrides that form on the worn surfaces may also have some effects on the friction and wear properties. Murakami et al have clarified that the metal hydrides that form on worn surfaces reduced the coefficient of friction when zirconium and niobium were slid in a hydrogen gas atmosphere [14].…”

Tribological Behaviour of Solid Lubricants in Hydrogen Environment

“…The tribological properties of Zr and Nb in hydrogen environment were investigated by Murakami et al (2010). Coatings of Zr-alloys on high strength steels are considered as a diffusion-barrier for hydrogen.…”