摘要
借助Gleeble 3500模拟机模拟了高速钢轧辊服役时表面工作层温度的升高,得到了循环加热冷却30次、50次及100次后试样表面的氧化膜。为对比分析,对高铬铸铁轧辊进行了循环50次的试验。利用扫描电子显微镜、X射线衍射分析仪、原子力显微镜对循环氧化后的试样表面氧化产物及其形貌进行了分析。结果表明:随着循环次数增加,高速钢轧辊氧化程度加剧,氧化膜更加致密;同样循环次数下,高铬铸铁轧辊氧化程度要比高速钢严重且氧化膜的粗糙度也大于高速钢。
Working surface temperature variations of high speed steel roll( HSSR) during rolling were simulated on a Gleeble 3500 simulator. Oxidation films on surface of the rolls were obtained after cyclic heating and cooling for different times. High-chromium iron roll was tested by the same cyclic treatment for 50 times for comparison. The oxidation products and corresponding morphology of the oxidation films on HSSR working surface after cyclic treatment were studied by means of scanning electron microscopy( SEM),X-ray diffraction( XRD) and atomic force microscope( AFM). The results show that the oxidation degree increases and the oxidation films become more compactness with increasing the cycle times. At the same conditions,the oxidation degree and roughness of the oxidation films of highchromium iron roll are much higher than that of HSSR.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2015年第5期61-66,共6页
Transactions of Materials and Heat Treatment
