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Evaluation of interfacial fracture behavior of HVAS coating/substrate system using a local approach

  • Lian Yong Xu
  • , Hong Yang Jing
  • , Jun Wei
  • , Hui Zou
  • Tianjin University
  • Agency for Science, Technology and Research, Singapore

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

Abstract

In this paper, the local approach based on the Weibull stress criterion was used to investigate the interfacial fracture behavior between LX88A coating and Q345 steel. LX88A coating was deposited by high velocity electric arc spraying technology (HVAS). The finite element method (FEM) was used to analyze the stress-strain fields of the coating specimen which consisted of three different specimen geometrics or modes of loading. It was found that the Weibull stress for all specimen geometries was almost identical under the same fracture probability when the interfacial fracture initiation occurred for different specimen geometries. It showed that the geometry dependence on the interface brittle fracture toughness data can be reduced through application of the local approach, and the local approach can be used to describe the interfacial fracture behavior.

Original languageEnglish
Title of host publicationAdvanced Structural and Functional Materials for Protection
EditorsWilliam Lau, Shang Huai Min, Lee Nam Sua, Ma Jan, Alfred Tok
PublisherTrans Tech Publications Ltd
Pages125-132
Number of pages8
ISBN (Print)9783908451501
DOIs
StatePublished - 2008
Externally publishedYes
EventInternational Conference on Materials for Advanced Technologies, ICMAT 2007 - Singapore, Singapore
Duration: 1 Jul 20076 Jul 2007

Publication series

NameSolid State Phenomena
Volume136
ISSN (Print)1012-0394
ISSN (Electronic)1662-9779

Conference

ConferenceInternational Conference on Materials for Advanced Technologies, ICMAT 2007
Country/TerritorySingapore
CitySingapore
Period1/07/076/07/07

Keywords

  • Coating
  • FEM
  • Interface fracture
  • Local approach
  • Weibull stress

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