Small crack behavior and fracture of nickel-based superalloy under ultrasonic fatigue

Q. Chen; N. Kawagoishi; Q. Y. Wang; N. Yan; T. Ono; G. Hashiguchi

doi:10.1016/j.ijfatigue.2005.07.022

Small crack behavior and fracture of nickel-based superalloy under ultrasonic fatigue

Q. Chen, N. Kawagoishi, Q. Y. Wang, N. Yan, T. Ono, G. Hashiguchi

ENG - Mechanical Systems Engineering

Research output: Contribution to journal › Conference article › peer-review

34 Citations (Scopus)

Abstract

Fracture and small crack behavior in the very high cycle domain of 10 ⁹ cycles were investigated with a nickel-based superalloy under ultrasonic fatigue in ambient air at room temperature. The influence of ultrasonic frequency is examined by comparing the results with those in conventional low frequency fatigue. It is found that fatigue strength increases as frequency is raised up to 19.5 kHz and the most of fatigue life is consumed in nucleating and propagating small cracks up to 100 μm. Transition of fracture mode from transgranular ductile fracture to cleavage-dominated fracture occurs beyond a critical stress intensity factor range of approximately 21MPam, leading to the catastrophic failure under ultrasonic fatigue.

Original language	English
Pages (from-to)	1227-1232
Number of pages	6
Journal	International Journal of Fatigue
Volume	27
Issue number	10-12
DOIs	https://doi.org/10.1016/j.ijfatigue.2005.07.022
Publication status	Published - 2005 Oct
Event	Fatigue Damage of Structural Materials V - Duration: 2004 Sep 19 → 2004 Sep 24

Keywords

Fatigue
High cycle
Nickel-based superalloy
Small crack
Ultrasonic

ASJC Scopus subject areas

Modelling and Simulation
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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title = "Small crack behavior and fracture of nickel-based superalloy under ultrasonic fatigue",

abstract = "Fracture and small crack behavior in the very high cycle domain of 10 9 cycles were investigated with a nickel-based superalloy under ultrasonic fatigue in ambient air at room temperature. The influence of ultrasonic frequency is examined by comparing the results with those in conventional low frequency fatigue. It is found that fatigue strength increases as frequency is raised up to 19.5 kHz and the most of fatigue life is consumed in nucleating and propagating small cracks up to 100 μm. Transition of fracture mode from transgranular ductile fracture to cleavage-dominated fracture occurs beyond a critical stress intensity factor range of approximately 21MPam, leading to the catastrophic failure under ultrasonic fatigue.",

keywords = "Fatigue, High cycle, Nickel-based superalloy, Small crack, Ultrasonic",

author = "Q. Chen and N. Kawagoishi and Wang, {Q. Y.} and N. Yan and T. Ono and G. Hashiguchi",

note = "Funding Information: This work was supported in partial by the Japan Science Promotion Society under Grant Nos 11750085 and 13650096. Special thanks are also due to Prof. C. Laird, Dr A.K. Vasudevan, and Prof. H. Mayer for insightful discussion. ; Fatigue Damage of Structural Materials V ; Conference date: 19-09-2004 Through 24-09-2004",

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language = "English",

volume = "27",

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journal = "International Journal of Fatigue",

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TY - JOUR

T1 - Small crack behavior and fracture of nickel-based superalloy under ultrasonic fatigue

AU - Chen, Q.

AU - Kawagoishi, N.

AU - Wang, Q. Y.

AU - Yan, N.

AU - Ono, T.

AU - Hashiguchi, G.

N1 - Funding Information: This work was supported in partial by the Japan Science Promotion Society under Grant Nos 11750085 and 13650096. Special thanks are also due to Prof. C. Laird, Dr A.K. Vasudevan, and Prof. H. Mayer for insightful discussion.

PY - 2005/10

Y1 - 2005/10

N2 - Fracture and small crack behavior in the very high cycle domain of 10 9 cycles were investigated with a nickel-based superalloy under ultrasonic fatigue in ambient air at room temperature. The influence of ultrasonic frequency is examined by comparing the results with those in conventional low frequency fatigue. It is found that fatigue strength increases as frequency is raised up to 19.5 kHz and the most of fatigue life is consumed in nucleating and propagating small cracks up to 100 μm. Transition of fracture mode from transgranular ductile fracture to cleavage-dominated fracture occurs beyond a critical stress intensity factor range of approximately 21MPam, leading to the catastrophic failure under ultrasonic fatigue.

AB - Fracture and small crack behavior in the very high cycle domain of 10 9 cycles were investigated with a nickel-based superalloy under ultrasonic fatigue in ambient air at room temperature. The influence of ultrasonic frequency is examined by comparing the results with those in conventional low frequency fatigue. It is found that fatigue strength increases as frequency is raised up to 19.5 kHz and the most of fatigue life is consumed in nucleating and propagating small cracks up to 100 μm. Transition of fracture mode from transgranular ductile fracture to cleavage-dominated fracture occurs beyond a critical stress intensity factor range of approximately 21MPam, leading to the catastrophic failure under ultrasonic fatigue.

KW - Fatigue

KW - High cycle

KW - Nickel-based superalloy

KW - Small crack

KW - Ultrasonic

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DO - 10.1016/j.ijfatigue.2005.07.022

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JO - International Journal of Fatigue

JF - International Journal of Fatigue

SN - 0142-1123

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T2 - Fatigue Damage of Structural Materials V

Y2 - 19 September 2004 through 24 September 2004

ER -