Assessment of unusual failure in crankshaft of heavy-duty truck engine

2022-03-05 Hits:

Affiliation of Author(s):University of Electronic Science and Technology of China

Place of Publication:Engineering Failure Analysis

Key Words:Diesel engine; Crankshaft failure; MnS inclusions; Downshifting; Microstructure

Abstract:The unusual premature failure of a heavy-duty truck engine crankshaft has been the subject of a rigorous study, and this manuscript describes it in detail. The failure was happened to begin with the growth of the crack from the surface defects, in the form of the clusters of non-metallic inclusions, in the lubrication hole zone of ​​the first main journal, which was the stress concentration zone. A series of experiments including chemical composition, microstructure, mechanical properties, hardness, toughness, and fractography were performed on the failed crankshaft. In addition, the stress...

All the Authors:Reza Masoudi Nejad,Kian Pourhosseini Toroq,Wojciech Macek,Ricardo Branco

Indexed by:Research Paper

Correspondence Author:Karim Aliakbari

Document Code:106085

Discipline:Engineering

First-Level Discipline:Mechanical engineering

Volume:134

Page Number:106085

ISSN No.:1350-6307

Translation or Not:no

Date of Publication:2022-01-24

Date of Publication:2022-01-24