Ultrasonic fatigue properties of Ni-base superalloy

Qiang Chen, Norio Kawagoishi, Hironobu Nisitani, Ken Ichi Otsubo, Qingyuan Wang, Eiji Kondo

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In order to investigate the effect of load frequency on the fatigue strength and fracture mechanism of a nickel-base superalloy, Inconel 718, fatigue tests were carried out under an ultrasonic frequency (19.5 kHz) in ambient air environment. The results were compared with those obtained under conventional rotatary bending fatigue at a frequency of 50 Hz. Fatigue strength increased at ultrasonic frequency, which is mainly caused by the suppression of crack initiation and its growth at the early stage. Under both ultrasonic and rotary bending fatigue tests, most of fatigue life consumed in the growth of a crack smaller than 1 mm. In the ultrasonic fatigue, intergranular and cleavage crack propagations were observed in addition to striation, which was a dominant fracture mechanism in the conventional fatigue.

Original languageEnglish
Pages (from-to)626-632
Number of pages7
JournalNippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume69
Issue number3
Publication statusPublished - Mar 1 2003
Externally publishedYes

Fingerprint

Superalloys
Ultrasonics
Fatigue of materials
Bending (deformation)
Nickel
Crack initiation
Crack propagation
Cracks
Air

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Ultrasonic fatigue properties of Ni-base superalloy. / Chen, Qiang; Kawagoishi, Norio; Nisitani, Hironobu; Otsubo, Ken Ichi; Wang, Qingyuan; Kondo, Eiji.

In: Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 69, No. 3, 01.03.2003, p. 626-632.

Research output: Contribution to journalArticle

Chen, Qiang ; Kawagoishi, Norio ; Nisitani, Hironobu ; Otsubo, Ken Ichi ; Wang, Qingyuan ; Kondo, Eiji. / Ultrasonic fatigue properties of Ni-base superalloy. In: Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A. 2003 ; Vol. 69, No. 3. pp. 626-632.
@article{92e82e4def3a4768a1294edc5fe528aa,
title = "Ultrasonic fatigue properties of Ni-base superalloy",
abstract = "In order to investigate the effect of load frequency on the fatigue strength and fracture mechanism of a nickel-base superalloy, Inconel 718, fatigue tests were carried out under an ultrasonic frequency (19.5 kHz) in ambient air environment. The results were compared with those obtained under conventional rotatary bending fatigue at a frequency of 50 Hz. Fatigue strength increased at ultrasonic frequency, which is mainly caused by the suppression of crack initiation and its growth at the early stage. Under both ultrasonic and rotary bending fatigue tests, most of fatigue life consumed in the growth of a crack smaller than 1 mm. In the ultrasonic fatigue, intergranular and cleavage crack propagations were observed in addition to striation, which was a dominant fracture mechanism in the conventional fatigue.",
author = "Qiang Chen and Norio Kawagoishi and Hironobu Nisitani and Otsubo, {Ken Ichi} and Qingyuan Wang and Eiji Kondo",
year = "2003",
month = "3",
day = "1",
language = "English",
volume = "69",
pages = "626--632",
journal = "Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A",
issn = "0387-5008",
publisher = "一般社団法人日本機械学会",
number = "3",

}

TY - JOUR

T1 - Ultrasonic fatigue properties of Ni-base superalloy

AU - Chen, Qiang

AU - Kawagoishi, Norio

AU - Nisitani, Hironobu

AU - Otsubo, Ken Ichi

AU - Wang, Qingyuan

AU - Kondo, Eiji

PY - 2003/3/1

Y1 - 2003/3/1

N2 - In order to investigate the effect of load frequency on the fatigue strength and fracture mechanism of a nickel-base superalloy, Inconel 718, fatigue tests were carried out under an ultrasonic frequency (19.5 kHz) in ambient air environment. The results were compared with those obtained under conventional rotatary bending fatigue at a frequency of 50 Hz. Fatigue strength increased at ultrasonic frequency, which is mainly caused by the suppression of crack initiation and its growth at the early stage. Under both ultrasonic and rotary bending fatigue tests, most of fatigue life consumed in the growth of a crack smaller than 1 mm. In the ultrasonic fatigue, intergranular and cleavage crack propagations were observed in addition to striation, which was a dominant fracture mechanism in the conventional fatigue.

AB - In order to investigate the effect of load frequency on the fatigue strength and fracture mechanism of a nickel-base superalloy, Inconel 718, fatigue tests were carried out under an ultrasonic frequency (19.5 kHz) in ambient air environment. The results were compared with those obtained under conventional rotatary bending fatigue at a frequency of 50 Hz. Fatigue strength increased at ultrasonic frequency, which is mainly caused by the suppression of crack initiation and its growth at the early stage. Under both ultrasonic and rotary bending fatigue tests, most of fatigue life consumed in the growth of a crack smaller than 1 mm. In the ultrasonic fatigue, intergranular and cleavage crack propagations were observed in addition to striation, which was a dominant fracture mechanism in the conventional fatigue.

UR - http://www.scopus.com/inward/record.url?scp=0037603606&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037603606&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0037603606

VL - 69

SP - 626

EP - 632

JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A

JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A

SN - 0387-5008

IS - 3

ER -