Fretting fatigue properties under the effect of hydrogen and the mechanisms that cause the reduction in fretting fatigue strength

Jader Furtado, Ryosuke Komoda, Masanobu Kubota

Research output: Contribution to conferencePaper

Abstract

Fretting fatigue, which is a composite phenomenon of metal fatigue and friction, is one of the major factors in the design of mechanical components as it significantly reduces fatigue strength. Since hydrogen can influence both fatigue and friction, fretting fatigue is one of the important concerns in designing hydrogen equipment. The authors carried out the fretting fatigue tests on austenitic stainless steels in order to characterize the effect of hydrogen and to explain the mechanism responsible for hydrogen embrittlement. In this study, the significant reduction in fretting fatigue strength due to hydrogen is shown including other factors influencing the fretting fatigue strength such as surface roughness, hydrogen content and the addition of oxygen. The cause of the reduction in the fretting fatigue strength in hydrogen is local adhesion between the contacting surfaces and subsequent formation of many small cracks. Furthermore, hydrogen enhances crack initiation under fretting fatigue conditions. Transformation of the microstructure from austenite to martensite is another possible reason. A hydrogen charge also reduces the fretting fatigue strength. The cause is the reduction in the crack growth threshold, ΔKth, due to hydrogen.

Original languageEnglish
Pages1299-1308
Number of pages10
Publication statusPublished - Jan 1 2013
Event13th International Conference on Fracture 2013, ICF 2013 - Beijing, China
Duration: Jun 16 2013Jun 21 2013

Other

Other13th International Conference on Fracture 2013, ICF 2013
CountryChina
CityBeijing
Period6/16/136/21/13

Fingerprint

fatigue
Fatigue of materials
hydrogen
Hydrogen
crack
Friction
Fatigue strength
effect
friction
Hydrogen embrittlement
Austenitic stainless steel
Crack initiation
Martensite
Austenite
Crack propagation
adhesion
surface roughness
Adhesion
Surface roughness
microstructure

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology

Cite this

Furtado, J., Komoda, R., & Kubota, M. (2013). Fretting fatigue properties under the effect of hydrogen and the mechanisms that cause the reduction in fretting fatigue strength. 1299-1308. Paper presented at 13th International Conference on Fracture 2013, ICF 2013, Beijing, China.

Fretting fatigue properties under the effect of hydrogen and the mechanisms that cause the reduction in fretting fatigue strength. / Furtado, Jader; Komoda, Ryosuke; Kubota, Masanobu.

2013. 1299-1308 Paper presented at 13th International Conference on Fracture 2013, ICF 2013, Beijing, China.

Research output: Contribution to conferencePaper

Furtado, J, Komoda, R & Kubota, M 2013, 'Fretting fatigue properties under the effect of hydrogen and the mechanisms that cause the reduction in fretting fatigue strength' Paper presented at 13th International Conference on Fracture 2013, ICF 2013, Beijing, China, 6/16/13 - 6/21/13, pp. 1299-1308.
Furtado J, Komoda R, Kubota M. Fretting fatigue properties under the effect of hydrogen and the mechanisms that cause the reduction in fretting fatigue strength. 2013. Paper presented at 13th International Conference on Fracture 2013, ICF 2013, Beijing, China.
Furtado, Jader ; Komoda, Ryosuke ; Kubota, Masanobu. / Fretting fatigue properties under the effect of hydrogen and the mechanisms that cause the reduction in fretting fatigue strength. Paper presented at 13th International Conference on Fracture 2013, ICF 2013, Beijing, China.10 p.
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