Wear behaviors of MoSi2 doped with La2O3 against SiC under different loads at 1000 ℃ in air were investigated by using an XP-5type high temperature friction an
Plasma nitrocarburizing of nanocrystallized (NC) 3J33 steel were carried out at 400 and 430 ℃ for 4 h in a mixed gas of N2:3H2and different flow rates of rare