粘着磨损英文

“黏着磨损:两摩擦表面接触时,由于表面不平,发生的是点接触,在相对滑动和一定载荷作用下,在接触点发生塑性变形或剪切,使其表面膜破裂,摩擦表面温度升高,严重时表面金属会软化或熔化,此时,接触点产生黏着,然后出现黏着一剪断一再黏着一再剪断的循环过程,这就形成黏着磨损。

abrasion英 [əˈbreɪʒn] 美 [əˈbreʒən] n.磨损;擦伤处;<喻>摩擦;<地质>磨蚀（作用）例句：It possesses a balance of performance properties such as good flexibility, toughness and abrasion resistance. 它具备了如良好的弹性，韧性和耐磨性的表现性能的平衡。

wear can be defied as the progressive loss of material from the operating surface of a body occurring as a result of relative motion at the surface.the problem of wear arises wherever there are load and motion between surfaces,and is therefore important in engineering practice,often being they major factor governing the life and performance of machine components.the major types of weare are described next:磨损是相应作用因素使物体作用面的材料逐渐损失的过程。只要两作用面间有载荷及位移就会引起磨损，它是工程实践中影响设备寿命及性能的重要因素。磨损有以下几种形式：Adhesive wear粘着磨损when two surfaces are loaded against each other,the whole of the contact load is carried on very small area of the asperity contacts,the real contact pressure at these asperities is very high,and adhesion takes place between them.if a tangential force is applied to the model shown in Fig.16.1,shearing can take place either (a) at the interface or (b) below or above the interface,causing adhesive wear.because of factors such as strain hardening at the asperity contact,the adhesive bonds often are stronger than the base metals,thus,during sliding,fracture usually occurs in the weaker or softer component,and a wear fragment is generated.although this fragment is attach to the harder component(upper surface in Fig.16.1c),it eventually becomes detached during further rubbing at the interface and develops into a loose wear particle.当很大的作用力作用在很小的粗糙作用面时会产生很高的接触压力，从而导致两作用面产生粘着磨损。如果在图16.1的模型中施加切向力，切应力会发生在（a）接触面内或（b）接触面下方或接触面上方，从而引起粘着磨损。因为有各种因素如“变形硬化”，使得的粘着力强于基材，所以较软的零件基材会在相互滑动时发生断裂，产生磨损碎片。虽然碎片粘着与较硬的材料（图16.1c中的上表面），在其后的摩擦中会掉落在作用面上并形成磨粒。Corrosive wear腐蚀磨损Corrosive wear also known as oxidation or chemical wear，this type of wear is caused by chemical or electrochemical reactions between the surfaces wear particles in this type of wear。when the corrosive layer is destroyed or removed through sliding，another layer begins to form，and the process of removal and corrosive layer formation is repeated 腐蚀磨损也称为氧化或化学磨损，这种磨损是其作用面间的磨粒产生的化学或电化学反应引起的。当耐磨层在摩擦过程被毁坏时，下一层就开始被毁坏，一直重复下去。Fatigue wear疲劳磨损fatigue wear is caused when the surface of a material is subjected to cyclic loading，one example of this is the rolling contact in bearings。the wear particles usually are formed through spalling or pitting。another type of fatigue wear is by thermal fatigue。cracks on the surface are generated by thermal stresses from thermal cycling，such as when a cool forging die repeatedly contacts hot workpieces。these cracks then join，and the surface begins to spall，producing fatigue wear。疲劳磨损由物体表面的交变载荷引起的，其中一个例子是滚动轴承的滚动接触，其磨粒由碎裂或凹陷产生。另一种疲劳磨损是由热疲劳引起的。物体表面的裂纹由交变热循环引起，如低温锻模重复接触热工件。其后的裂纹累加会产生疲劳磨损。注：磨损包括五种：Adhesive wear（粘着磨损）、Abrasive wear（磨削磨损）、Corrosive wear（腐蚀磨损）、Fatigue wear（疲劳磨损）、其它。你这篇少Abrasive wear磨削磨损。