Structure and Anomalous Magnetic Properties in Fe-N/Ti-N Nano-multilayers

DC-magnetron sputtering was employed to prepare Fe-N/Ti-N periodic nano-multilayers . Magnetic properties were studied by vibrating sample magnetometry and structure by TEM and X-ray diffraction for the films. A strong enhancement of the saturation magnetization was found in multilayers containing thinner Fe-N layers. The coercivity was found to be nearly constant. A kind of anomalous hysteresis loops was found in some

Ti(C,N)颗粒增强铁基复合材料磨损性能的研究

以45钢、钛铁、生铁等为主要原料,在大气环境下、利用中频感应电炉、通过添加含氮附加物、采用原位反应铸造法制备了Ti(C,N)颗粒增强铁基复合材料。研究了所制备复合材料的油润滑摩擦磨损性能、干摩擦磨损性能以及冲击磨料磨损性能。结果表明,在有润滑和无润滑条件下的干摩擦,复合材料的耐磨性能都远大于正火45钢;在中、低冲击工况下,复合材料磨料磨损性能优于高锰钢和高铬铸铁。