Improvement of quality of dissimilar welded joints made of pipelines steels by application of vibromechanical treatment in welding
Authors:
About authors
- post-graduate student Saint Petersburg State Mining Institute (Technical University)
Abstract
The article describes opportunity of improvement of physical-mechanical properties of welded joint made of different strength grade pipeline steels (Steel 20 of K42 strength grade and 16ГС – K52) by applying vibration during the welding cycle. It’s shown that maximal positive effect is achieved by vibration frequency approximating to natural-vibration frequency of welded construction.
Область исследования:
(Archived) Development of oil and gas deposits
Keywords:
weld seam
vibromechanical treatment
mechanical properties
microstructure
thermal treatment
pipeline welding
dissimilar welded joint
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