Preliminary communication

Failure analysis of a diesel engine crankshaft

A. Y. Jiao orcid.org/0000-0003-3606-5589 ; School of applied technology, University of Science and Technology Liaoning, Anshan, China
F. L. Chen ; School of mechanical Engineering and automation, University of Science and Technology Liaoning, Anshan, China
B. H. Liu ; School of mechanical Engineering and automation, University of Science and Technology Liaoning, Anshan, China
J. W. Deng ; Tianrun Crankshaft Co., Ltd., Wen deng, China

Abstract

In this paper, the macroscopic observation and chemical composition analysis of the third crankshaft journal have been carried out. Moreover, macroscopic observation, chemical composition analysis and metallographic analysis were carried out, and were compared with the journal with cracks and without cracks. Based on the experimental results and the causes of crankshaft neck cracks, it can be concluded that the crack form of crankshaft goes along with the grain brittle direction.

Keywords

42CrMo; crankshaft; crack; metallography; hardness

Hrčak ID:

224780

URI

https://hrcak.srce.hr/224780

Publication date:

1.1.2020.

Visits: 2.186 *