Repair of shot peening on fatigue properties of high-strength TC18 titanium alloy for aviation

Dongxing Du, Daoxin Liu, Dinggen Xiang, Baoli Meng, Xiaohua Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

In this paper, the machining texture and shot peening (SP) on the fatigue properties of a high-strength TC18 titanium alloy for aviation were studied. The surface texture, surface morphology, hardness distribution, and residual stress characteristics of fatigue specimens were analyzed by using scanning electron microscopy (SEM), micro-hardness tester, and X-ray diffraction residual stress analyzer. The results showed that the fatigue life of the axial texture processing was 27 % lower than that of the axial polishing specimens (BM) . But circumferential texture processing was 72 % lower than that of BM. It was attributed that the fatigue cracks was initiation easily by circumferential texture processing. Then, SP technology was induced to repair the fatigue life of the circumferential texture processing specimens. Compared with the BM specimens, the fatigue life of SP specimens increased approximately 12 times. That was attributed to the depth of compressive residual stress field induced by SP.

Original languageEnglish
Title of host publicationProceedings of the First Symposium on Aviation Maintenance and Management
PublisherSpringer Verlag
Pages575-582
Number of pages8
EditionVOL. 2
ISBN (Print)9783642542329
DOIs
StatePublished - 2014
Event2013 1st Symposium on Aviation Maintenance and Management - Xi'an, China
Duration: 25 Nov 201328 Nov 2013

Publication series

NameLecture Notes in Electrical Engineering
NumberVOL. 2
Volume297 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference2013 1st Symposium on Aviation Maintenance and Management
Country/TerritoryChina
CityXi'an
Period25/11/1328/11/13

Keywords

  • Fatigue properties
  • Machining
  • Shot peening
  • Surface texture
  • TC18 titanium alloy

Fingerprint

Dive into the research topics of 'Repair of shot peening on fatigue properties of high-strength TC18 titanium alloy for aviation'. Together they form a unique fingerprint.

Cite this