REVIEW ARTICLE
Study on the Heat Transfer Characteristics Performed in the Infrared Thermography Detection of Welded Structure
Zhiping Liu , Xingle Liu*, Lei Jiang , Ge Lu , Huilong Liu
Article Information
Identifiers and Pagination:
Year: 2015Volume: 9
First Page: 251
Last Page: 259
Publisher Id: TOMEJ-9-251
DOI: 10.2174/1874155X01509010251
Article History:
Received Date: 8/1/2015Revision Received Date: 15/1/2015
Acceptance Date: 16/1/2015
Electronic publication date: 17/4/2015
Collection year: 2015
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
During the weld defect detection, the heat transfer characteristics are closely related to the material properties of welded structure. Based on the electromagnetic induction infrared thermography technology, the heat transfer Characteristics of the welded material are studied with the changing temperature. By using the finite element analysis software COMSOL, the eddy current density and temperature distributions and the law of thermal diffusion were analyzed which provide a reference for the study of heat transfer characteristics of weld defects. The internal temperature dynamic changes of the weld with surface crack or near-surface crack were also discussed. The appropriate time to observe and the key defect location on the steel obtained from the heat conduction process can be applied to the development of heat transfer characteristic analysis for steel weld and weld defects detection.
