Effect of Residual Stress on Thermal Deformation Behavior.
dissimilar bonding
non-destructive testing
optical interferometry
residual stress
thermal expansion
Journal
Materials (Basel, Switzerland)
ISSN: 1996-1944
Titre abrégé: Materials (Basel)
Pays: Switzerland
ID NLM: 101555929
Informations de publication
Date de publication:
10 Dec 2019
10 Dec 2019
Historique:
received:
08
11
2019
revised:
04
12
2019
accepted:
09
12
2019
entrez:
15
12
2019
pubmed:
15
12
2019
medline:
15
12
2019
Statut:
epublish
Résumé
This paper discusses a non-destructive measurement technique of residual stress through optical visualization. The least amount of deformation possible is applied to steel plates by heating the specimens +10 °C from room temperature for initial calibration, and the thermal expansion behavior is visualized with an electronic speckle pattern interferometer sensitive to two dimensional in-plane displacement. Displacement distribution with the thermal deformation and coefficient of thermal expansion are obtained through interferometric fringe analysis. The results suggest the change in the thermal deformation behavior is affected by the external stress initially applied to the steel specimen. Additionally, dissimilar joints of steel and cemented carbide plates are prepared by butt-brazing. The residual stress is estimated based on the stress dependence of thermal expansion coefficient.
Identifiants
pubmed: 31835611
pii: ma12244141
doi: 10.3390/ma12244141
pmc: PMC6947482
pii:
doi:
Types de publication
Journal Article
Langues
eng
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
Références
Materials (Basel). 2016 Feb 16;9(2):null
pubmed: 28787912
Light Sci Appl. 2018 Aug 1;7:48
pubmed: 30839600