The research on the nickel 690 alloy under micro-amplitude impact wear in deionized water and dry condition
CAI Zhen-bing1, DENG Xiao-jian1,YANG Rong1,PENG Jin-fang1,QIAN Hao2,XIE Yong-cheng2, ZHU Min-hao1
1.Tribology Research Institute, Key Laboratory of Advanced Materials Technology, Ministry of Education, Southwest Jiaootng University, Chengdu,610031,China2.ShanghaiNuclearEngineeringResearchandDesignInstitute,Shanghai,200233,China
Abstract：Through the innovation on clamp in the small load testing machine for impact wear to realize the configuration of tube on flat contact, which can simulate the micro-amplitude impact wear occurring in the steam generator between tube and anti-vibration bar. The nickel 690 alloy tube and 405 stainless steel were selected as the test materials. Micro-amplitude impact tests were obtained with different impact loads and lubrication conditions (dry and water).The wear and damaged mechanisms of 690 alloy were investigated through the analysis, micro-topography, fracture morphology, micro hardness. The results show that the wear mechanisms of the 690 alloy under the small load in the dry condition was combined with oxidation delaminlationand fatigue wear for high normal load. Under water, slightly damage can be found in small loads, and the wear mechanism is controlled by fatigue wear under high loads. The water liquid delay the cracking time compare to dry condition significantly.
蔡振兵;邓小剑;阳荣;彭金方;钱浩;李晨;谢永诚;朱旻昊. 690合金在去离子水和干态下的微幅冲击磨损行为研究[J]. , 2015, 34(4): 14-18.
CAI Zhen-bing;DENG Xiao-jian;YANG Rong;PENG Jin-fang;QIAN Hao;XIE Yong-cheng;ZHU Min-hao. The research on the nickel 690 alloy under micro-amplitude impact wear in deionized water and dry condition. , 2015, 34(4): 14-18.
2015, Vol. 34 
