1) fretting behavior
微动性能
1.
4μm have the best fretting behaviors.
本文主要讨论了常用连接器材料触点的微动性能。
2) fretting wear behavior
微动磨损性能
1.
Surface morphologies and microstructures were observed by scanning electron microscope and transmission electron microscope, their micro mechanical properties were examined by nano indentation, and fretting wear behavior from room temperature to 500 was investigated on a PLINT fretting wear test rig.
01GPa和5GPa,从而改善了镀层的微动磨损性能;复合镀层的耐磨性能约为镍镀层的2倍,这是由于纳米SiO2颗粒对复合镀层具有超细晶强化、硬质点弥散强化以及高密度位错强化机制所致。
3) fretting character
微动摩擦学性能
1.
A dense molybdenum nitride layer was fabricated on the surface of Ti6Al4V alloy by a plasma planting process and its fretting characters and mechanism against corundum balls by fretting test were investigated in this study.
采用离子渗镀技术在Ti6Al4V合金表面形成均匀致密的钼氮陶瓷渗镀层,对陶瓷层微动摩擦学性能进行研究。
4) fretting friction and wear behavior
微动摩擦磨损性能
5) kinetic energy perturbation
动能微扰
6) microwave properties
微波性能
1.
Studies on preparation and microwave properties of BaFe_(12)O_(19)/Al_2O_3-SiO_2-K_2O microcrystallite glass ceramics by citrate sol-gel process;
BaFe_(12)O_(19)/Al_2O_3-SiO_2-K_2O微晶玻璃陶瓷的柠檬酸Sol-Gel合成及其微波性能的研究
2.
Preparation and microwave properties of X,U-type ferrites by citrate sol-gel process;
X、U铁氧体的溶胶-凝胶合成及微波性能研究
3.
Preparation and microwave properties of Ba_(2-z)Pb_zZn_(1.2)Co_(0.8)Fe_(12)O_(22) ferrites by citrate sol-gel process;
BaPbZnCo-Y型铁氧体的柠檬酸溶胶-凝胶合成及其微波性能研究
补充资料:微动磨损
在相互压紧的金属表面间由于小振幅振动而产生的一种复合型式的磨损。在有振动的机械中,螺纹联接、花键联接和过盈配合联接等都容易发生微动磨损。一般认为,微动磨损的机理是:摩擦表面间的法向压力使表面上的微凸体粘着。粘合点被小振幅振动剪断成为磨屑,磨屑接着被氧化。被氧化的磨屑在磨损过程中起着磨粒的作用,使摩擦表面形成麻点或虫纹形伤疤。这些麻点或伤疤是应力集中的根源,因而也是零件受动载失效的根源。根据被氧化磨屑的颜色,往往可以断定是否发生微动磨损。如被氧化的铁屑呈红色,被氧化的铝屑呈黑色,则振动时就会引起磨损。有氧化腐蚀现象的微动磨损也称微动磨蚀。在交变应力下的微动磨损称为微动疲劳磨损。微动磨损的特点是:在一定范围内磨损率随载荷增加而增加,超过某极大值后又逐渐下降;温度升高则磨损加速;抗粘着磨损好的材料抗微动磨损也好;零件金属氧化物的硬度与金属硬度之比较大时,容易剥落成为磨粒,增加磨损;若氧化物能牢固地粘附在金属表面,则可减轻磨损;一般湿度增大则磨损下降。在界面间加入非腐蚀性润滑剂或对钢进行表面处理,可减小微动磨损。螺纹联接加装聚四氟乙烯垫圈也可减小微动磨损。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条