Influence of residual stress on the sliding wear of aisi 4340 steel

Ítalo Do Valle Tomaz, Mateus Campos Martins, Hector Reynaldo Meneses Costa, Ivan Napoleão Bastos, Maria Cindra Fonseca

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Mechanical components and structures wear out as a result of friction between surfaces in relative motion. Residual stresses play an important role for the tribological performance of components since compressive residual stresses yield positive effects on wear resistance. However, the real effect of residual stresses on the tribological performance of surfaces is not entirely clear. The objective of this work is to evaluate the residual stress behavior during a pin-on-disk wear test of quenched and tempered AISI 4340 disk specimens against a counter-body of steel AISI E 52100. Tests were performed in shot peened and non-shot peened specimens in six steps and residual stresses were evaluated after each one by X-ray diffraction technique using sin2 method. The results shown that wear rate of the shot peened specimens was approximately fifty percent lower. Shot peening induced compressive residual stresses contributed to this effect even though they were modified during the pin-on-disk test.

Original languageEnglish
Article numbere-12618
Pages (from-to)1-8
Number of pages8
JournalRevista Materia
Volume25
Issue number2
DOIs
Publication statusPublished - 2020
Externally publishedYes

Keywords

  • AISI 4340 steel
  • Pin-on-disk test
  • Residual stress
  • Shot peening
  • Wear
  • X-ray diffraction

Fingerprint

Dive into the research topics of 'Influence of residual stress on the sliding wear of aisi 4340 steel'. Together they form a unique fingerprint.

Cite this