INVESTIGATION OF RESIDUAL STRESSES IN WELDED PIPES
https://doi.org/10.17073/0368-0797-2014-11-48-53
Abstract
The problem of residual stress distribution in welded tubes is paid a lot attention in recent years because of it is the one of the fracture reason of welded tubes both in production process and in service of products made of them. Since the plastic forming process is performed in cold condition the residual stress appearance (σrs ) in welded tubes is found in the every operation of production process. In this regard it is important to carry out the experimental investigations that make possible the determination of the residual stress nature in the formable workpiece using modern nondestructive methods. This article describes the experimental results of residual stress measurement in the different points around circumference of the outer surface of both small-diameter and large-diameter tubes with the application of portable X-ray diffractometer “DRP-RIKOR” based on X-ray diffraction method.
About the Authors
A. P. Kolikov
National University of Science and Technology «MISiS» (4, Len-inskii pr., Moscow, 119049, Russia)
Russian Federation
Dr. Sci. (Eng.), Professor of the Chair “Tech-nology and equipment for pipe production”
Russian Federation
Dr. Sci. (Eng.), Professor of the Chair “Tech-nology and equipment for pipe production”
A. S. Leletko
National University of Science and Technology «MISiS» (4, Len-inskii pr., Moscow, 119049, Russia)
Russian Federation
MA student of the Chair “Technology and equipment for pipe production”
Russian Federation
MA student of the Chair “Technology and equipment for pipe production”
D. B. Matveev
National University of Science and Technology «MISiS» (4, Len-inskii pr., Moscow, 119049, Russia)
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Senior Researcher of the Chair “Technology and equipment for pipe production”
S. A. Kulyutin
Moscow Pipe Factory JSC «FILIT» (6, Barclay Str., Moscow, 121087, Russia)
Russian Federation
Director of quality and technology
Russian Federation
Director of quality and technology
S. V. Kadil’nikov
National University of Science and Technology «MISiS» (4, Len-inskii pr., Moscow, 119049, Russia)
Russian Federation
Graduate student of the Chair “Technol-ogy and equipment for pipe production”
Russian Federation
Graduate student of the Chair “Technol-ogy and equipment for pipe production”
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Review
For citations:
Kolikov A.P., Leletko A.S., Matveev D.B., Kulyutin S.A., Kadil’nikov S.V. INVESTIGATION OF RESIDUAL STRESSES IN WELDED PIPES. Izvestiya. Ferrous Metallurgy. 2014;57(11):48-53. (In Russ.) https://doi.org/10.17073/0368-0797-2014-11-48-53
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