磨损

In the dry sliding experiments of composites, friction coefficients decreased with the increase of load. Plastic deformation happened in the worn surface where Fe element was found, so PAM micro-fiber supported part of the load and prevented the further deformation. On the condition of high speed and high load, the worn surface of PAM1/nylon 6 composites was nearly melted and formed comparative uniform transfer on the surface of steel, which accounted for the rather low wear mass loss. The infrared analysis showed that the a small quantity of transition of crystal form from α into γ of nylon and its composites happened during the friction because of the high temperature and strong sheering strength.

通过对复合材料耐磨性能研究表明：复合材料的摩擦系数随载荷的增加而逐步下降，且磨损表面有明显的塑性变形；从能谱分析结果来看，复合材料表面有Fe的存在，表明PAM微纤承受了部分载荷，并阻止了基体的进一步塑性变形及粘着转移；在高速高载时，PAM1/尼龙6磨损表面处于粘流态，并在钢环表面形成了连续的转移膜，表现出较好的耐磨损性能，且在高温和强剪切力的作用下，材料基体发生了少量的α晶体向γ晶体的转移。

The influence of the carbon amount and sulphidation on the fricton and wear of iron-base materials was investigated.

在HDM-10型端面摩擦磨损试验机上分别进行恒定载荷与变动载荷摩擦磨损试验，考察了含碳量及硫化处理对铁基粉末冶金材料摩擦磨损性能的影响。

Results indicate that radial distance of the bushing from the rotor center and the radius of the hemispherical bushing significantly affect wear rate,and minimzing both two values will result in lowest wear for micro-rotor systems in MEMS.However,it is noted that the bearing radius sets a lower limit on the hemispherical bushing radius since the bushings are located beyond the rotor inner radius.It is desirable to reduce their effects on friction and wear on micro-rotors by regulating the radius of the bushing and the radial distance of the bushing from the rotor center within permissive range of micro-fabrication.Severe wear exists with increasing applied load and rotating speed of the rotor.Stress distributions in the contact region are different from Hertz solutions due to the convergence stresses apearing on the uncontinuous curvature line and the contact pressures display symmetrical parabola in the contact region.

结果表明：在MEMS微转子系统中，微转子轴衬偏心距离和转子轴衬半径影响线磨损率，以两者减至最小为较理想，但须注意设计中轴承半径的限制，并使轴衬偏心距离大于轴承内半径；在转子加工制造许可的范围内，可以通过调整转子轴衬的半径和偏心距离来减少摩擦磨损对微电机的影响，随着转子所承受载荷和转子旋转速度的增加，其磨损严重；接触区的应力分布不同于经典Hertz解，这是由于应力集中出现在不连续的曲率线上，且接触区的接触压力呈现轴对称抛物线状分布。

The fretting wear experiments were made on nitrogen imp-larted samples and unimplanted samples of 9Crl8Mo steel respectively in this in vestigation. SEM was used to observe the topography of the fretted surfaces. AES and micro-region X-ray diffraction were also used to deter mine the elements distribution and phase construction of the implanted surface tilm and wear track surface.

作者对9Cr18Mo钢的氮离子注入试样及未注入试样进行了微动磨损的对比试验，利用扫描电子显微镜对磨损表面的形貌进行了观察，利用俄歇电子能谱仪和微区X-射线衍射仪对氮离子注入试样表面与磨损表面的元素分布及相组成进行了分析。

The chemical corrosive wear mechanism of electroless Ni-P coating under unlubricated wear was studied by test and theory and the possibility of as an anti-chemical corrosive wear coating on drill pipe was probed into.

从实验和理论两方面研究了化学镀Ni-P合金在无润滑磨损条件下的化学腐蚀磨损机理，探讨了化学镀Ni-P合金作为钻杆耐腐蚀磨损功能性镀层的可行性。

Unlubricated wear, in-situ observation, transfer wear area, real contact area, adhesion wear

中文关键词：无润滑磨损，原位观察，过渡磨损区，真实接触区，粘着磨损

The wear mechanisms of the graphite pairs were examined based on the original image before and after sliding, the result shows that under air media, the graphite pairs works on the conditions of boundary lubrication and the wear mechanism is dominated by adhesion and plough wear, which is dominated by slightly plough wear under water environment.

磨损表面原始形貌对比分析表明，在空气中，摩擦副表面处于边界润滑状态，主要磨损机制是粘着磨损和犁削；水润滑条件下为轻微犁削；油润滑条件下，摩擦副表面处于为边界润滑和流体润滑状态，油中的减摩剂对试样表面有抛光作用。

The solution: find the plunger adjustable arm or gear from the speed control rod protruding ears slot prolapse, should re-open the fuel pump is installed correctly; also check whether the cross-slot wear and tear is too large, if found dead in parked for seca column position, should be demolition of repair or replacement parts; injector should be able to check the plunger is serious wear and tear, deputy returned to the oil valve gasket is worn; demolition injector, check whether the coupling of needle stuck in the closed position, needle and the injection hole Does burning, according to test results even to repair or replace parts.

解决办法：发现柱塞调节臂或齿轮凸耳从调速拉杆槽中脱出，应拆开喷油泵重新正确安装；同时检查叉槽是否磨损过大，如发现柱塞卡死在停供位置，应拆卸进行修复或换新件；喷油无力应检查柱塞副是否严重磨损，回油阀垫圈是否磨损；拆卸喷油器，检查针阀偶件是否卡死在关闭位置，针阀与喷油孔是否烧损，根据检查结果进行修复或更换偶件。

The effect of temperature on the friction and wear performances of multi-fibers reinforced automotive brake is investigated using XD-MSM tester. The mechanism of friction and wear is analyzed by observing the surfaces of friction material worn at different temperatures by means of scanning electron microscope.

利用XD-MSM型定速摩擦试验机，考察了摩擦材料的摩擦系数和磨损率随温度变化的情况，并且通过扫描电镜观察了摩擦材料在不同温度下磨损后的表面形貌，分析其摩擦磨损机理。

In order to improve the conductivity and abrasive resistance of copper-graphite composite brush,influence of carbon fiber content on the electrical wear behaviors of the copper-graphite brush were investigated under two conditions of electrifying and non-electrifying.

结果表明，在试验条件下，在合金接触线-黄铜粉末冶金滑块系统的电磨损过程中，Cu-Cr-Zr合金接触线的电磨损率随电流强度升高显著加强，由加载较小电流引起的磨损份额为0。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。