摘要
未来的航空航天运载火箭需要使用绿色的燃料,使运动件有好的摩擦学性能,当前对其研究的公开报道较少。利用环-块式摩擦磨损试验机对1Cr18Ni9Ti不锈钢与ZrO2陶瓷摩擦副在质量分数25%,50%和75%的H2O2介质中,于3种滑动速度和3种载荷条件下的摩擦磨损行为进行了研究。通过三维白光共焦显微镜分析了试样磨损表面的形貌和粗糙度。结果表明:在H2O2介质中,1Cr18Ni9Ti/ZrO2摩擦的总的趋势是H2O2浓度越高、载荷越大,摩擦系数越小;1Cr18Ni9Ti的磨损随着H2O2浓度的提高、载荷的增大而增大;在高浓度H2O2中1Cr18Ni9Ti与ZrO2摩擦副之间的主要磨损机制是较严重的犁沟型磨损和黏着磨损。
The friction and wear behavior of 1Crl8Ni9Ti stainless steel sliding a-gainst ZrO2 at varied conditions and in hydrogen peroxide with different concentration(mass fraction:25%,50%,and 75%)were evaluated using a ring-ondisc friction and wear test The morphology and microstructure of the worn surfaces were analyzed using a three dimensional(3D)white-light co-focal microscope.Results showed that the friction coefficient of lCrl8Ni9TVZrO2 tended to decrease with increasing concentration of hydrogen peroxide and load as well.However,the stainless steel experienced more severe wear at increased concentration of H2 O2 and load.The 1 Cr18Ni9Ti/ZrO2 sliding pair was dominated by severe adhesion wear and scuffing in H2O2 with a high concentration.
出处
《材料保护》
CAS
CSCD
北大核心
2009年第2期7-9,共3页
Materials Protection
基金
国家重点基础研究发展计划项目(2007CB607603)资助
国家自然科学基金(5067160)资助
