摘要
某摩托车在行驶1 500km后气门外弹簧发生断裂。采用扫描电镜、金相显微镜、等离子光谱发射仪等分析手段,对其断口进行了分析。结果表明,断裂呈现典型的疲劳断裂特征,材料表面缺陷是引起该弹簧疲劳断裂的主要原因。
Air valve spring used in motorcycle produced by a factory of Guangdong failured after the motorcycle drived for 1 500kin. The fracture was analysed by using SEM. metallography and ICP-AES. The results showed that the fracture was of typical fatigue fracture, and surface defects were the main factor resulting in the failure of the air valve spring.
出处
《理化检验（物理分册）》
CAS
2006年第2期95-96,105,共3页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
关键词
弹簧
断裂
原因分析
Spring
Fracture
Fracture analysis
