Ultrasonic fatigue performance of high temperature structural material Inconel 718 alloys at high temperature after UNSM treatment

A. Amanov, Y.S. Pyun, J Kim, C Suh, I Cho, H, D Kim, Qing Yuan Wang, Kashif Khan

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

This study investigates the influence of ultrasonic nanocrystal surface modification (UNSM) technique on the mechanical characteristics and fatigue life of two types of annealed and aged Inconel 718 alloys. The mechanical properties of both UNSM‐treated alloys were compared with the untreated specimens. The fatigue life of the untreated and UNSM‐treated Inconel 718 alloy specimens was investigated by ultrasonic fatigue and rotary‐bending fatigue tests. Results revealed that the UNSM‐treated specimens exhibited longer fatigue life than those of the untreated specimens. The improvement in fatigue life is mainly attributed to the induced compressive residual stress induced in the subsurface by UNSM technique.
Original languageEnglish
Pages (from-to)1266-1273
Number of pages8
JournalFatigue & Fracture of Engineering Materials & Structures
Volume38
Issue number11
DOIs
Publication statusPublished - 29 Jun 2015

Fingerprint

Nanocrystals
Surface treatment
Ultrasonics
Fatigue of materials
Temperature
Compressive stress
Residual stresses
Mechanical properties

Cite this

Ultrasonic fatigue performance of high temperature structural material Inconel 718 alloys at high temperature after UNSM treatment. / Amanov, A.; Pyun, Y.S.; Kim, J; Suh, C; Cho, I; Kim, H, D; Wang, Qing Yuan; Khan, Kashif.

In: Fatigue & Fracture of Engineering Materials & Structures, Vol. 38, No. 11, 29.06.2015, p. 1266-1273.

Research output: Contribution to journalArticle

@article{64a9571756b7405f87f40e655676f71f,
title = "Ultrasonic fatigue performance of high temperature structural material Inconel 718 alloys at high temperature after UNSM treatment",
abstract = "This study investigates the influence of ultrasonic nanocrystal surface modification (UNSM) technique on the mechanical characteristics and fatigue life of two types of annealed and aged Inconel 718 alloys. The mechanical properties of both UNSM‐treated alloys were compared with the untreated specimens. The fatigue life of the untreated and UNSM‐treated Inconel 718 alloy specimens was investigated by ultrasonic fatigue and rotary‐bending fatigue tests. Results revealed that the UNSM‐treated specimens exhibited longer fatigue life than those of the untreated specimens. The improvement in fatigue life is mainly attributed to the induced compressive residual stress induced in the subsurface by UNSM technique.",
author = "A. Amanov and Y.S. Pyun and J Kim and C Suh and I Cho and Kim, {H, D} and Wang, {Qing Yuan} and Kashif Khan",
year = "2015",
month = "6",
day = "29",
doi = "10.1111/ffe.12330",
language = "English",
volume = "38",
pages = "1266--1273",
journal = "Fatigue and Fracture of Engineering Materials and Structures",
issn = "8756-758X",
publisher = "Wiley",
number = "11",

}

TY - JOUR

T1 - Ultrasonic fatigue performance of high temperature structural material Inconel 718 alloys at high temperature after UNSM treatment

AU - Amanov, A.

AU - Pyun, Y.S.

AU - Kim, J

AU - Suh, C

AU - Cho, I

AU - Kim, H, D

AU - Wang, Qing Yuan

AU - Khan, Kashif

PY - 2015/6/29

Y1 - 2015/6/29

N2 - This study investigates the influence of ultrasonic nanocrystal surface modification (UNSM) technique on the mechanical characteristics and fatigue life of two types of annealed and aged Inconel 718 alloys. The mechanical properties of both UNSM‐treated alloys were compared with the untreated specimens. The fatigue life of the untreated and UNSM‐treated Inconel 718 alloy specimens was investigated by ultrasonic fatigue and rotary‐bending fatigue tests. Results revealed that the UNSM‐treated specimens exhibited longer fatigue life than those of the untreated specimens. The improvement in fatigue life is mainly attributed to the induced compressive residual stress induced in the subsurface by UNSM technique.

AB - This study investigates the influence of ultrasonic nanocrystal surface modification (UNSM) technique on the mechanical characteristics and fatigue life of two types of annealed and aged Inconel 718 alloys. The mechanical properties of both UNSM‐treated alloys were compared with the untreated specimens. The fatigue life of the untreated and UNSM‐treated Inconel 718 alloy specimens was investigated by ultrasonic fatigue and rotary‐bending fatigue tests. Results revealed that the UNSM‐treated specimens exhibited longer fatigue life than those of the untreated specimens. The improvement in fatigue life is mainly attributed to the induced compressive residual stress induced in the subsurface by UNSM technique.

U2 - 10.1111/ffe.12330

DO - 10.1111/ffe.12330

M3 - Article

VL - 38

SP - 1266

EP - 1273

JO - Fatigue and Fracture of Engineering Materials and Structures

JF - Fatigue and Fracture of Engineering Materials and Structures

SN - 8756-758X

IS - 11

ER -