Preliminary communication

Fracture analysis of nodular cast iron crankshaft

M. S. Xu ; University of Science and Technology Liaoning, School of mechanical Engineering and automation, Anshan, China
J. L. Shi ; University of Science and Technology Liaoning, School of mechanical Engineering and automation, Anshan, China

Abstract

Based on the analysis of the fracture of a certain type of QT800-2 nodular cast iron crankshaft, the cause analysis of the fracture crankshaft is discussed based on macroscopic inspection, metallographic analysis and mechanical properties test. The results show that the shrinkage and surface cracks in the casting process are the main factors leading to the fracture of the crankshaft, and the process improvement measures for the manufacturing process of QT800-2 nodular cast iron crankshaft are put forward.

Keywords

crankshaft; nodular cast iron; fracture; metallographic structure; mechanical properties

Hrčak ID:

241207

URI

https://hrcak.srce.hr/241207

Publication date:

1.10.2020.

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