Ultrasonic fatigue strength in Inconel 718

Qiang Chen, N. Kawagoishi, K. Othubo, E. Kondo, M. Sakai, T. Kizaki

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

The fatigue strength of a nickel-base superalloy, Inconel 718, was investigated at room temperature under an ultrasonic frequency (19.5 kHz) loading in ambient air environment. The endurance (S-N) data show that fatigue strength was enhanced at ultrasonic frequency as compared to those at conventional frequencies. Small crack initiation and propagation behavior was observed during the fatigue progress at both ultrasonic fatigue and conventional rotary bending fatigue. The effect of frequency on the fatigue fracture mechanism was examined from a microscopic viewpoint.

Original languageEnglish
Pages573-582
Number of pages10
Publication statusPublished - Jan 1 2001
Externally publishedYes
EventSUPERALLOYS 718, 625, 706 and Various Derivatives - Pittsburgh, PA, United States
Duration: Jun 17 2001Jun 20 2001

Other

OtherSUPERALLOYS 718, 625, 706 and Various Derivatives
CountryUnited States
CityPittsburgh, PA
Period6/17/016/20/01

Fingerprint

Ultrasonics
Fatigue of materials
Bending (deformation)
Nickel
Superalloys
Crack initiation
Crack propagation
Durability
Fatigue strength
Air
Temperature

All Science Journal Classification (ASJC) codes

  • Metals and Alloys

Cite this

Chen, Q., Kawagoishi, N., Othubo, K., Kondo, E., Sakai, M., & Kizaki, T. (2001). Ultrasonic fatigue strength in Inconel 718. 573-582. Paper presented at SUPERALLOYS 718, 625, 706 and Various Derivatives, Pittsburgh, PA, United States.

Ultrasonic fatigue strength in Inconel 718. / Chen, Qiang; Kawagoishi, N.; Othubo, K.; Kondo, E.; Sakai, M.; Kizaki, T.

2001. 573-582 Paper presented at SUPERALLOYS 718, 625, 706 and Various Derivatives, Pittsburgh, PA, United States.

Research output: Contribution to conferencePaper

Chen, Q, Kawagoishi, N, Othubo, K, Kondo, E, Sakai, M & Kizaki, T 2001, 'Ultrasonic fatigue strength in Inconel 718' Paper presented at SUPERALLOYS 718, 625, 706 and Various Derivatives, Pittsburgh, PA, United States, 6/17/01 - 6/20/01, pp. 573-582.
Chen Q, Kawagoishi N, Othubo K, Kondo E, Sakai M, Kizaki T. Ultrasonic fatigue strength in Inconel 718. 2001. Paper presented at SUPERALLOYS 718, 625, 706 and Various Derivatives, Pittsburgh, PA, United States.
Chen, Qiang ; Kawagoishi, N. ; Othubo, K. ; Kondo, E. ; Sakai, M. ; Kizaki, T. / Ultrasonic fatigue strength in Inconel 718. Paper presented at SUPERALLOYS 718, 625, 706 and Various Derivatives, Pittsburgh, PA, United States.10 p.
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