Investigation of transition zone of low-carbon steel joint with high-alloyed Cr-Ni deposited metal

Yushchenko, K. A.; Kakhovsky, Yu.N.; Bulat, A.V.; Morozova, R. I.; Zvyagintseva, A.V.; Samojlenko, V.I.; Olejnik, Yu.V.

doi:10.15407/tpwj2014.06.31

Cited by 3 publications

(1 citation statement)

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“…Previous studies have established, that the width of the transition zone in manual arc welding varies within 2…135 µm [7]. It is impossible to exclude the formation of a transition layer contributing to the formation of structural and chemical in homogeneities in the welded joint.…”

Section: Obtained Resultsmentioning

confidence: 97%

Technology of welding and repair works of hydropower plants units

Kakhovskyi¹,

Kakhovskyi²,

Ievdokymenko³

2021

Mech. Adv. Technol.

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In the course of long-term operation of hydroelectric units, they are subject to wear and tear, which negatively affects the power generating capacity of the hydroelectric power station. The existing repair technology provides the restoration of the geometric dimensions of the impeller chamber of the hydraulic unit using an austenitic cladding layer. However, this technology is characterized by the occurrence of cracks and delamination of the deposited layer during post-repair operation, which is negatively reflected in the production cycle of electricity. A new technology and welding consumables have been proposed for repair and restoration works of hydroelectric units at hydroelectric power plants, providing an increase in the quality level, high characteristics of hydroabrasive and cavitation resistance, and increasing of working period of hydroelectric power plants. Inspection of the body of the hydraulic unit was carried out, defects were identified and classified, the reasons for their occurrence were analyzed. The research results make possible to optimize the alloying system of the deposited metal, to determine the optimal welding mode, to reduce the amount of the martensite component and to develop new filler materials and the technology for welding and repair works of hydroelectric power plants.

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Section: Obtained Resultsmentioning

confidence: 97%

Technology of welding and repair works of hydropower plants units

Kakhovskyi¹,

Kakhovskyi²,

Ievdokymenko³

2021

Mech. Adv. Technol.

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Investigation of the methods of modifying the structure of austenitic welds and the zone of their fusion with pearlitic base metal

Yushchenko¹,

Bulat²,

Svyagintseva³

et al. 2020

Avtom. svarka (Kiev)

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Investigation of the methods of modifying the structure of austenitic welds and the zone of their fusion with pearlitic base metal

Yushchenko¹,

Bulat²,

Svyagintseva³

et al. 2020

The Paton Welding J.

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hief ) , S. I . K u c h u k -Y a t s e n k o ( Deputy Editor-in-C hief ) , V . M . L i p o d a e v ( Deputy Editor-in-C hief ) , O. M . B e r d n i k o v a , Y u . S. B o r i s o v , V . V . K n y s h , V . M . K o r z h y k , I . V . K r i v t s u n , Y u . M . L a n k i n , L . M . L o b a n o v , S. Y u . M a k s i m o v , M . O. P a s h c h i n , V . D . P o z n y a k o v , I . O. R y a b t s e v , K . A . Y u s h c h e n k o ; V . V . D m i t r i k , NTUU

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Investigation of transition zone of low-carbon steel joint with high-alloyed Cr-Ni deposited metal

Cited by 3 publications

References 0 publications

Technology of welding and repair works of hydropower plants units

Technology of welding and repair works of hydropower plants units

Investigation of the methods of modifying the structure of austenitic welds and the zone of their fusion with pearlitic base metal

Investigation of the methods of modifying the structure of austenitic welds and the zone of their fusion with pearlitic base metal

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