A High Pressure-Short Time Chromatography Using Analysis of Surface Deformation Patterns in Percussive Impact Indentation on Lubricated Surfaces

继有关高压下润滑剂自由体积从液体到固化区的文献之后，作者在这里观察到了冲击下的动态高压现象，固体表面(如轴承钢球和低碳钢平板)之间的润滑膜不再像迄今所假定的那样呈现轴对称行为，而是在周向上呈现出各种各向异性模式。动态条件下的凝固被认为是根据时间、位置和油的组成而发生的。在冲击瞬间，一次偏析表现为颗粒沉积，在试验板的主要压痕上残留着一些微小的压痕。通过分析，可以识别出不同油液成分不同的干涉条纹的特征图案，并测量配合板的三维轮廓。用同样的方法阐明了5P4E酯的独特性能。因此，Pre…润滑剂凝固动力学现象的瞬变行为更具有广泛的适用性。值得注意的是，在接触条件变化如此迅速的情况下，界面现象对接触变形起着重要的作用。总结了对润滑表面冲击压痕表面变形规律的分析，得出了以下结论。凹陷中心部分用费氏干涉条纹进行测量。观察到轴对称和非轴对称两种形态。油的均相凝固形成轴对称的凹坑形态，油的凝固分散相形成非轴对称的凹坑形态。而且，FeE退火钢在这种非对称性上的表现比FeE淬火钢更显著。测量了凹坑的子午线截面轮廓，计算了凹坑的有效半径。凹坑的有效半径与油的接触角密切相关。因此，FeE界面现象比FeE退火钢更显著地规定了FeE有效凹陷半径。流道形状的精确分析是流道瞬变现象在短时间内通过的流道复制观测，可以考察动态条件下流道的流道凝固和流道界面现象的差异。较少

Succeeding the papers on free volume of lubricants at high pressure from liquid to solidified regions, the authors are observing dynamical high pressure phenomena under impact Here, lubricant films between solid surfaces, e.g., a bearing steel ball and a flat plate of low carbon steel, no more exhibit axi symmetric behavior as so far assumed a priori, but a variety of anisotropic patterns in circumferentially.The solidification under the dynamical condition is considered to occur depending on time, location and oil composition. At the moment of impact, primary segregation appears as granular deposition remaining a number of minute indentations superposed on principal indentation of its test plate. By analysis, the characteristic patterns of different interferential fringes different according to oil composition can be identified, together with measurement of the three dimensional profile of the mating plate. The unique performance of 5P4E ester is clarified by same means. Thus, the pre … More sent transient behavior of dynamical phenomena of solidification of lubricants develops wide applicability. It is noted that for such a rapid change in contact condition the interfacial phenomena plays a significant role on contact deformation.Summarizing the analysis of surface deformation pattern in percussive impact indentation on lubricated surfaces, the following conclusions are drawn.1. The central part of the dent was measured by fee interference fringe pattern. The axi-svmmetrical and unaxi-symmetrical patterns were observed. The axi-symmetrical pattern of fee dent was formed by homogeneous phase solidification of oil and fee unaxi-symmetrical pattern of fee dent was formed by dispersed phase of solidification of oil. And, fee annealed steel appears on this non symmetry more remarkably than fee hardened steel.2. The profile of the meridian sections of the dent was measured wife fee contact stylus surface roughness tester and fee effective radius of the dent was calculated. The effective radius of the dent was closely related to contact angle of oil. So, fee effective radius of dent was prescribed by fee interfacial phenomenon more remarkably than fee annealed steel.3. The precise analysis of fee dent shape is fee replica observation of fee transient phenomenon to pass in a short time, and it can examine fee solidification of oil under dynamic condition and a difference in fee interfacial phenomena. Less