Mechanical and tribological properties of shot-peened SAE 1070 steel

N. W. Khun, P. Q. Trung, D. L. Butler

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The effects of shot peening pressure on the mechanical and tribological properties of shot-peened SAE 1070 steel strips were systematically investigated. The surface hardness of the shot-peened steel strips significantly increased with increased shot peening pressure due to the promoted cold work-hardening effect. The tribological results showed that the increased surface roughness of the shot-peened steel strips associated with increased shot peening pressure resulted in their increased friction by enhancing mechanical interlocking between two rubbing surfaces. The wear of the shot-peened steel strips decreased with increased shot peening pressure via their increased surface hardness. However, the shot-peened steel strips at shot peening pressures less than 345 kPa did not exhibit better wear resistance than the as-received steel strip, indicating that a certain intensity of shot peening was required to improve the wear resistance of the shot-peened steel strips. It could be concluded that the mechanical and tribological properties of the shot-peened steel strips were significantly influenced by the shot peening pressure.

LanguageEnglish
Pages932-943
Number of pages12
JournalTribology Transactions
Volume59
Issue number5
DOIs
Publication statusPublished - 2 Sep 2016
Externally publishedYes

Fingerprint

shot peening
Steel
Shot peening
shot
strip
steels
mechanical properties
wear resistance
Wear resistance
hardness
Hardness
work hardening
Strain hardening
locking
surface roughness
friction
Surface roughness
Wear of materials
Friction

Keywords

  • friction
  • hardness
  • SAE 1070 steel
  • Shot peening
  • wear

Cite this

Khun, N. W. ; Trung, P. Q. ; Butler, D. L. / Mechanical and tribological properties of shot-peened SAE 1070 steel. In: Tribology Transactions . 2016 ; Vol. 59, No. 5. pp. 932-943.
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Mechanical and tribological properties of shot-peened SAE 1070 steel. / Khun, N. W.; Trung, P. Q.; Butler, D. L.

In: Tribology Transactions , Vol. 59, No. 5, 02.09.2016, p. 932-943.

Research output: Contribution to journalArticle

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AU - Trung, P. Q.

AU - Butler, D. L.

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