Effect of High Strain-Rate Deformation on Surface Mechanical Properties of Stainless Steel after Peening

Kanou, Shinya; Nishikawa, Masaaki; Soyama, Hitoshi

doi:10.1299/kikaia.76.1775

Cited by 2 publications

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Laser peening utilizes the impacts caused by a laser-driven shock wave (11) . There are large differences between these peening techniques, e.g., strain velocity (12) , plastic dimple size, and plastic deformed volume (13) . In order to combine the favorable effects from each of these, hybrid peening was developed in this study.…”

Section: Introductionmentioning

confidence: 99%

An Indicator for the Suppression of Fatigue Crack Growth by Hybrid Peening

Takakuwa

Yamamiya

Soyama

2013

JMMP

Self Cite

View full text Add to dashboard Cite

Peening techniques are used to introduce compressive residual stress into the surface of a metal in order to improve the fatigue properties and resistance to stress corrosion cracking of the metal. The present paper focuses on the effect of peening on the fatigue crack growth behavior in austenitic stainless steel. An indicator which can be used to determine by how much the fatigue crack growth can be suppressed was found. Regardless of the type of peening technique used, a much closer correlation to the number of cycles to failure was found with the area of integration under the compressive residual stress curve with respect to depth than with the compressive residual stress at the surface. Moreover hybrid peening, which is a combination of different peening techniques, was developed in this study in order to enhance the favorable effects of peening. Hybrid peening increased the area of integration under the compressive residual stress curve and, as a result, a further increase in the number of cycles to failure compared to single peening was obtained.

show abstract

Section: Introductionmentioning

confidence: 99%

An Indicator for the Suppression of Fatigue Crack Growth by Hybrid Peening

Takakuwa

Yamamiya

Soyama

2013

JMMP

Self Cite

View full text Add to dashboard Cite

show abstract

Evaluation of fatigue crack propagation in surface modification layer of duralumin treated by various peening

Kokubun

Soyama

2017

Transactions of the JSME (In Japanese)

Self Cite

View full text Add to dashboard Cite

Peening techniques are used to introduce the compressive residual stress into the surface of metallic materials in order to improve the fatigue properties. The fatigue crack propagation is affected by many factors in surface modification layer, however, the effect of these factors on the fatigue crack propagation is not clarified in detail. In this study, the fatigue crack propagation behavior in surface modification layer of duralumin treated by various peening techniques including shot peening, cavitation peening and laser peening was investigated. The relationship between the fatigue crack propagation behavior and mechanical properties was also evaluated. The fatigue crack propagation behavior varies depending on peening techniques despite the condition of the same peening intensity, since the mechanical properties in surface modification layer are changed with the peening techniques. The compressive residual stress R and Vickers hardness HV are the important factors about fatigue crack propagation, however they do not show a correlation with the number of cycle to failure of the specimen Nf. Therefore, the new indicator combined with four factors i.e. R, HV, full-width at half maximum  and maximum height roughness Rz were proposed. It revealed a significant correlation with Nf, and possibility to evaluate the effect of suppression of fatigue crack propagation by peening.

show abstract

Effect of High Strain-Rate Deformation on Surface Mechanical Properties of Stainless Steel after Peening

Cited by 2 publications

References 14 publications

An Indicator for the Suppression of Fatigue Crack Growth by Hybrid Peening

An Indicator for the Suppression of Fatigue Crack Growth by Hybrid Peening

Evaluation of fatigue crack propagation in surface modification layer of duralumin treated by various peening

Contact Info

Product

Resources

About