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材料导报  2019, Vol. 33 Issue (Z2): 452-454    
  金属与金属基复合材料 |
750 kV变电站地刀连杆杆端轴承断裂失效分析
张李锋1, 段江2
1 国网陕西电力科学研究院,西安 710100;
2 国网陕西省电力公司,西安 710048
Fracture Failure Analysis of Connecting Rod End Bearing of Ground Switch in750 kV Substation
ZHANG Lifeng1, DUAN Jiang2
1 State Grid Shaanxi Electric Power Research Institute, Xi’an 710100;
2 State Grid Shaanxi Electric Company, Xi’an 710048
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摘要 采用宏观分析、化学成分分析、布氏硬度检测、金相组织分析、SEM和EDS能谱等检测分析方法对地刀连杆杆端轴承的断裂原因进行分析。结果表明:杆端轴承本身材质的综合力学性能不佳是导致其断裂的内因,位于应力集中的螺纹第一牙处是导致其断裂的结构外因,上述因素导致杆端轴承发生脆性断裂失效。
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张李锋
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关键词:  杆端轴承  脆性断裂  综合力学性能  应力集中    
Abstract: Macroscopical analysis,element analysis, brinell hardness test,metallographic analysis, SEM and EDS were used to analyze the fracture causes of connecting rod end bearing of ground switch.The results show that: the internal cause of fracture of rod-end bearing is its poor comprehensive mechanical properties, the first tooth of the thread, which is located in the stress concentration, is the external structure cause of the fracture, the above factors lead to brittle fracture failure of rod end bearing.
Key words:  rod end bearing    brittle fracture    comprehensive mechanical properties    stress concentration
               出版日期:  2019-11-25      发布日期:  2019-11-25
ZTFLH:  TG142.1  
基金资助: 750 kV交流同塔四回输电关键技术研究(5226SX1600U7)
通讯作者:  798725032@qq.com   
作者简介:  张李锋,2007年3月毕业于上海交通大学获得材料学专业工学硕士学位,高级工程师,毕业后就职于国网陕西电科院。以第一作者在国内学术期刊上发表论文10余篇,主要事电厂和电网材料的失效分析和性能研究。
段江,1994年毕业于西安交通大学获得热能工程专业学士学位,高级工程师,在国内期刊发表多篇文章,主要从事电站锅炉燃烧、调试、性能考核等试验研究工作。
引用本文:    
张李锋, 段江. 750 kV变电站地刀连杆杆端轴承断裂失效分析[J]. 材料导报, 2019, 33(Z2): 452-454.
ZHANG Lifeng, DUAN Jiang. Fracture Failure Analysis of Connecting Rod End Bearing of Ground Switch in750 kV Substation. Materials Reports, 2019, 33(Z2): 452-454.
链接本文:  
http://www.mater-rep.com/CN/  或          http://www.mater-rep.com/CN/Y2019/V33/IZ2/452
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