The effect of hybrid surface modification; Combination of fine particle bombardment treatment and nitriding, on fatigue properties of steel

Shoichi Kikuchi, Jun Komotori, Yutaka Kameyama, Kengo Fukazawa

Research output: Contribution to journalArticle

Abstract

In order to clarify the effects of the hybrid surface modification process; a combination of Fine Particle Bombardment (FPB) treatment and nitriding, on the fatigue properties of AISI 4135 steel (stress concentration factor: α=2.36), high cycle fatigue tests were carried out with a rotational bending machine at room temperature. Observations of fracture surfaces and measurements of hardness and residual stress distributions were carried out to investigate the fracture mechanism and fatigue strength. It was revealed that treating process sequence did affect residual stress distributions. Compressive residual stress generated at the surface of FPB treated specimen after nitriding was higher than that of the one FPB treated before nitriding. It was clarified that the higher the specimen hardness was, the higher compressive residual stress was generated at the surface. Therefore, FPB treatment after nitriding increased the fatigue strength of steel.

Original languageEnglish
Pages (from-to)215-218
Number of pages4
JournalKey Engineering Materials
Volume353-358
Issue numberPART 1
Publication statusPublished - 2007

Fingerprint

Steel
Nitriding
Surface treatment
Residual stresses
Fatigue of materials
Stress concentration
Compressive stress
Bending machines
Hardness
Temperature
Fatigue strength

Keywords

  • Compound layer
  • Fatigue
  • Fish-eye
  • Hardness
  • Nitriding
  • Peening
  • Residual stress
  • Surface treatment

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemical Engineering (miscellaneous)

Cite this

The effect of hybrid surface modification; Combination of fine particle bombardment treatment and nitriding, on fatigue properties of steel. / Kikuchi, Shoichi; Komotori, Jun; Kameyama, Yutaka; Fukazawa, Kengo.

In: Key Engineering Materials, Vol. 353-358, No. PART 1, 2007, p. 215-218.

Research output: Contribution to journalArticle

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