FRACTURE ANALYSIS OF THE MOTOR VALVE SPRING

FRACTURE ANALYSIS OF THE MOTOR VALVE SPRING[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2006, 42(2): 95-96.

Citation:

FRACTURE ANALYSIS OF THE MOTOR VALVE SPRING[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2006, 42(2): 95-96.

Citation:

FRACTURE ANALYSIS OF THE MOTOR VALVE SPRING[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2006, 42(2): 95-96.

Abstract

Air valve spring used in motorcycle produced by a factory of Guangdong failured after the motorcycle drived for 1 500km. 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.

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