摘要
The influence of various surface coatings, including flame sprayed Cu、 plasma sprayed Cu Ni In、 exploding sprayed WC/Co Ⅰ and plasma sprayed WC/Co Ⅱ, on fretting fatigue resistance for TC11 titanium alloy at 20℃ and 500℃ is studied. The results show that the plasma sprayed WC/Co Ⅱ coating has good protection performance and makes the fretting fatigue strength of TC11 titanium alloy raise 40% at both 20℃ and 500℃. The fretting fatigue strength of TC11 alloy with Cu coating is increased about 62% at 20℃, but the protection performance at 500℃ is not so good as that at 20℃.
The influence of various surface coatings, including flame sprayed Cu、 plasma sprayed Cu Ni In、 exploding sprayed WC/Co Ⅰ and plasma sprayed WC/Co Ⅱ, on fretting fatigue resistance for TC11 titanium alloy at 20℃ and 500℃ is studied. The results show that the plasma sprayed WC/Co Ⅱ coating has good protection performance and makes the fretting fatigue strength of TC11 titanium alloy raise 40% at both 20℃ and 500℃. The fretting fatigue strength of TC11 alloy with Cu coating is increased about 62% at 20℃, but the protection performance at 500℃ is not so good as that at 20℃.
