摘要
某汽车后背门起支撑作用的植绒弹簧在服役过程中发生断裂,通过断口宏微观形貌分析、化学成分分析、腐蚀产物能谱分析等方法对植绒弹簧断裂原因进行了分析。结果表明:该植绒弹簧断裂由在应力和腐蚀环境共同作用下发生的应力腐蚀开裂导致的;植绒弹簧发生应力腐蚀开裂的主要原因为其使用的润滑油中含有腐蚀性元素氯,建议在后续使用时选用正规品牌、有质量保证的润滑油。
The flocking spring supporting the backdoor of a car fractured during its service.The fracture causes of the flocking spring were analyzed by macro and micro fracture morphology analysis,chemical composition analysis and corrosion product energy spectrum analysis.The results show that the flocking spring fracture was caused by stress corrosion cracking which occurred under the joint action of stress and corrosive environment.The main reason for the stress corrosion cracking of the flocking spring was that the used lubricating oil contained corrosive element chlorine.It is recommended to use regular brand and quality-assured lubricating oil for subsequent use.
作者
黄立飞
HUANG Lifei(Soochow FALAB Judicial Authenticators,Suzhou 215000,China)
出处
《理化检验（物理分册）》
CAS
2019年第4期286-288,共3页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
关键词
植绒弹簧
断裂
应力腐蚀开裂
润滑油
flocking spring
fracture
stress corrosion cracking
lubricating oil
