摘要
采用销盘式高温磨损试验机对0Cr17Ni7Al钢进行干滑动摩擦磨损试验,研究了该材料不同热处理状态、不同工况下的摩擦磨损行为,采用EDS、XRD、SEM分析磨损表面成分、形貌和磨面剖面结构,探讨0Cr17Ni7Al钢的磨损机理。结果表明:磨损率随着载荷的增加而增加,随环境温度的升高而升高。其中在环境温度25℃和200℃低载时,磨损形式主要以磨粒磨损为主,随着载荷增加变成由粘着磨损和磨粒磨损混合作用机制。200℃高载时候磨损形式主要以粘着磨损为主,400℃时开始出现疲劳磨损。环境温度25℃和200℃低载时固溶处理试样的耐磨性最好,而在400℃时最差。
Friction and wear behavior and mechanism of a type of stainless steel 0Cr17Ni7Al were systematically studied under dry sliding condition with the load range of 25-75 N and the ambient temperature range from 25 ℃ to 400 ℃ by a pin-on-disc high-temperature wear abrasion tester.The structure,morphology and composition of the worn surface,subsurface and wear debris were examined using XRD,SEM and EDS.The experimental results show that the wear rate tends to increase with the increase of load and ambient temperature.An abrasive wear prevailed at 25 ℃ or under a low load at 200 ℃.With the increase of load,there was a mixed mechanism of adhesive wear and grain wear.An adhesive wear prevailed under a high load at 200 ℃.Fatigue wear occurred as the ambient temperature rose to 400 ℃.The specimen with solution treatment at 1 040 ℃ exhibited the best wear resistance at 25 ℃or under a low load at 200 ℃ while the worst at 400 ℃.
出处
《钢铁钒钛》
CAS
北大核心
2012年第1期82-86,共5页
Iron Steel Vanadium Titanium
