The effects of dry grinding of diaspore (αAlOOH) on the structure of diaspore were investigated by means of X-ray diffraction(XRD), particle size measurement, infrared (IR)spectroscopy and nitrogen adsorption techniques.
通过X射线衍射、颗粒粒度测量、红外光谱以及N2吸附技术分析干磨对一水硬铝石结构的影响。
The grind-hardening for two kinds of widely used middle carbon steels were carried out on a surface grinder by creep feed dry grinding,and the characteristics of the hardened layer were studied.
在平面磨床上采用缓进干磨方式对两种常用中碳钢进行了磨削淬硬试验,研究了表面硬化层特征。
The microstructures of those wear surface and wear subsurface being detected and analyzed by SEM、EDS、TEM、XRD,it was found that:the changes of microstructure of these coatings during the dry wear course came of the energy of lattice distortion and stain due to W s.
采用激光熔覆在45钢表面制备微/纳米WC增强Ni基合金涂层,获得不同W过饱和度的涂层组织,并进行相同载荷和不同距离下的干磨损试验,对磨损面及其亚表面的组织结构采用SEM、EDS、TEM和XRD等技术进行分析,发现激光熔覆涂层在干磨损条件下的组织变化主要源于W过饱和引起的晶格畸变能和急冷所致应变能,摩擦表面在摩擦力作用下弥散析出大量纳米级WC颗粒;摩擦亚表层则为摩擦热作用区,通过W扩散脱溶生成WC类相和组织形态变化,释放晶格畸变能和组织应变能,当这些转变结束后,涂层组织就处于一种相对稳定的状态。