Overview of factors contributing to steel spring performance and failure. (8th October 2007)

• Record Type: Journal Article
• Authors: Canale, Lauralice C.F.; Penha, Renata Neves; Totten, George E.; Canale, Antonio C.; , Maria Regina Gasparini
• Is Part Of: International journal of microstructure and materials properties. Volume 2:Number 3/4(2007)
• Page Start: 262
• Page End: 309
• Publication Date: 2007-10-08
• Subjects: springs -- spring steel -- chemistry -- heat treatment -- residual stress -- fatigue failure -- failure analysis -- spring performance -- leaf springs -- coil springs -- automotive springs -- automobile industry; Microstructure -- Periodicals; Materials -- Properties -- Periodicals; 620.11299
• Languages: English
• ISSNs: 1741-8410

Abstract

Leaf springs and coil springs are commonly used in the motor vehicle industry. Premature fatigue failure is a common failure mode. However, the reasons for these failures may be more complex and include: design deficiencies, heat treatment, steel alloy chemistry, intergranular cracking, presence of Fe-S inclusions, and grain boundary embrittlement. This paper will provide an overview of spring steel: chemistry, heat treatment, residual stress, fatigue failure, and failure analysis of leaf and coil springs.