磨损

According to the variations in friction coefficient, wear rate, temperature of tribo-pair and tribo-surface micro hardness with time, the tribological process lubricated by oil containing Mg_6Si_4O_(10)_8 shows quasi-periodicity with characteristic of damped oscillation, and quasi-period is 200 h; micro-hardness of the worn surface is one time higher than that of 45~# steel substrate.

在实验室条件下，验证了主要组分为Mg6Si4O108的金属磨损自修复剂在45#钢摩擦副表面形成修复保护层的能力，得到了厚3～6 μm的反应层；采用Falex型摩擦磨损试验机进行了长达400 h的摩擦磨损试验，研究了在Mg6Si4O108润滑下45#钢摩擦副的摩擦磨损性能、摩擦副摩擦表面显微硬度和温度随时间变化的情况。

This paper also analyzes the ash wear mechanism,and then does the effects of low temperature economizer wear five factors: the first is the smoke corridor caused by wear mechanism,the second is the impact on the wall material,and the third is that of flying ash concentratio.

分析了飞灰磨损的机理，然后分析了影响低温省煤器磨损的5种因素，一是烟气走廊引起磨损的机理；二是管壁材料的影响；三是飞灰浓度的影响；四是过量空气系数的影响；五是烟气成分的变化对磨损的影响。

Compared with the graphite, the coefficients of friction of the RL-C/C are lower under the same load of about 0.08-0.12, and the increasing range of the volume losses are still lower than those of the graphite. Compared with the SL pyrocarbon material, the COF and the volume loss of the SL-C/C are about 0.02-0.05 and 0.2 mm^3, lower than those under the same load. The COFs of most RL-C/C and SL-C/C specimens remain stable or decrease slightly with time, while those of the graphite and pyrocarbon specimens increase. The thickness of the integrated friction film of the RL-C/C decreases with load, but the wear surface of the SL-C/C is rough. Tough the wear surface of the graphite is integrated, the serious abrasive wear make the debris move easily and accumulate on the edge of the wear trace to form a restacked morphology. On the wear surface of the pyrocarbon material, some loosed debris, circular worn holes and flake worn out pyrocarbon has been found.

结果表明：PAN炭纤维改善C/C复合材料的摩擦磨损行为；在实验载荷范围内，与高强度石墨材料相比，含RL炭C/C复合材料的摩擦因数降低0.08~0.12；体积磨损量增幅降低；与热解炭试样相比，具有SL炭C/C复合材料的摩擦因数降低0.02~0.05，体积磨损量低0.2立方公厘左右；随着时间的延长，大部分C/C复合材料的摩擦因数基本相对稳定或呈小幅下降，而石墨、热解炭块的摩擦因数均呈不同幅度的上升；具有RL炭的C/C复合材料摩擦表面膜厚度随载荷增加而降低，具有SL炭的C/C复合材料摩擦表面较粗糙；高强石墨能形成较完整致密的摩擦膜，但磨粒磨损严重，磨屑易在摩擦膜边缘形成层状堆积；热解炭块摩擦表面磨屑堆积松散，有较多的孔洞以及热解炭层整体剥落的形貌。

Compared with the graphite, the coefficients of friction of the RL-C/C are lower under the same load of about 0.080.12, and the increasing range of the volume losses are still lower than those of the graphite. Compared with the SL pyrocarbon material, the COF and the volume loss of the SL-C/C are about 0.020.05 and 0.2 mm3, lower than those under the same load. The COFs of most RL-C/C and SL-C/C specimens remain stable or decrease slightly with time, while those of the graphite and pyrocarbon specimens increase. The thickness of the integrated friction film of the RL-C/C decreases with load, but the wear surface of the SL-C/C is rough. Tough the wear surface of the graphite is integrated, the serious abrasive wear make the debris move easily and accumulate on the edge of the wear trace to form a restacked morphology. On the wear surface of the pyrocarbon material, some loosed debris, circular worn holes and flake worn out pyrocarbon has been found.

结果表明：PAN炭纤维改善C/C复合材料的摩擦磨损行为；在实验载荷范围内，与高强度石墨材料相比，含RL炭C/C复合材料的摩擦因数降低0.08~0.12；体积磨损量增幅降低；与热解炭试样相比，具有SL炭C/C复合材料的摩擦因数降低0.02~0.05，体积磨损量低0.2 mm3左右；随着时间的延长，大部分C/C复合材料的摩擦因数基本相对稳定或呈小幅下降，而石墨、热解炭块的摩擦因数均呈不同幅度的上升；具有RL炭的C/C复合材料摩擦表面膜厚度随载荷增加而降低，具有SL炭的C/C复合材料摩擦表面较粗糙；高强石墨能形成较完整致密的摩擦膜，但磨粒磨损严重，磨屑易在摩擦膜边缘形成层状堆积；热解炭块摩擦表面磨屑堆积松散，有较多的孔洞以及热解炭层整体剥落的形貌。

Using pin on disk tribometer, the influence of volume fraction and particle size of SiC on dry friction and wear properties of the SiC/Al composites were investigated.

采用无压浸渗法制备不同碳化硅粒度和体积分数的SiC/Al复合材料，利用销-盘摩擦磨损试验机考察了碳化硅的粒度和体积分数等对SiC/Al复合材料干摩擦磨损性能的影响，采用扫描电子显微镜观察磨损表面形貌并分析其磨损机理。

SiC/Al composites were prepared with pressureless infiltration method. Using pin on disk tribometer, the influence of volume fraction and particle size of SiC on dry friction and wear properties of the SiC/Al composites were investigated. The wear mechanism of the composites was studied with the analysis of the worn surface by SEM.

采用无压浸渗法制备不同碳化硅粒度和体积分数的SiC/Al复合材料，利用销－盘摩擦磨损试验机考察了碳化硅的粒度和体积分数等对SiC/Al复合材料干摩擦磨损性能的影响，采用扫描电子显微镜观察磨损表面形貌并分析其磨损机理。

Friction and wear behavior of CrNiMo steel against H96 brass in different atmosphere s like oxygen and carbon dioxide were investigated on the MMS-1G tribometer under high speed and dry sliding.

采用MMS-1G型高温高速摩擦磨损试验机研究了在氧气和二氧化碳2种气氛环境中CrNiMo钢/H96黄铜摩擦副的高速干滑动摩擦磨损特性，采用扫描电子显微镜和X射线光电子能谱仪对CrNiMo钢销试样的磨损表面形貌及其元素的化学状态进行分析，结合摩擦表面宏观温度的测量，分析了不同气氛环境中pv值对摩擦副摩擦磨损特性的影响。

And, finally, the results of wear tests show that in comparison with undeformed specimens the weight loss of deformed and boronized specimens is much smaller and the time for transition from slight to severe wearing is greatly delayed.

最后，磨损试验结果表明，与非形变试样相比，形变渗硼试样的磨损失重明显减小，由轻微磨损到剧烈磨损的转变时间推迟。

The results show that although the profile w ear of the surface is not beneficial to the lubrication, the asperity wear does. In consideration of coupling wear of profile and asperity, the minimum film thi ckness increases in a certain worn height. Therefore, the wear of asperity is be neficial to lubrication in this region.

分析结果表明：在重载条件下表面轮廓磨损不利于润滑，而表面微突体的磨损则有利于润滑；当同时考虑表面轮廓和粗糙度时，在一定磨损高度内，磨损显著增加润滑膜的最小膜厚，从而有利于润滑。

Roll wear is a factor difficult to determine and there is no suitable theoretical model till now In this paper,the theoretical model of roll wear is established from the view of tribology,and the roll wear on finishing train of 2050 CVC hot strip mill has been measured The calculated results agree well with the measured,so the model for roll wear is of important significance for shape control

轧辊磨损是当前生产中难以定量确定的因素，磨损预报至今尚无精确的理论模型可利用。本文从摩擦学原理出发建立了轧辊磨损的理论模型，并对宝钢 2 0 5 0 CVC热连轧机精轧机组的轧辊磨损量进行实际测量，计算结果与实测值吻合较好，对提高磨损预报精度、提高板形控制技术水平具有重要意义

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。