2015 №06 (12) DOI of Article
2015 №06 (14)

The Paton Welding Journal 2015 #06
The Paton Welding Journal, 2015, #5-6, 55-58 pages  

Application of friction stir welding method for repair and restoration of worn-out copper plates of mccb moulds

G.M. Grigorenko1, L.I. Adeeva1, A.Yu. Tunik1, M.A. Poleshchuk1, E.V. Zelenin1, V.I. Zelenin1, Yu.N. Nikityuk2 And V.A. Lukash3

1E.O. Paton Electric Welding Institute, NASU. 11 Bozhenko Str., 03680, Kiev, Ukraine. E-mail:
2Research and Production Company «VISP Ltd». 23 Moskovsky Ave., 04655, Kiev, Ukraine
3V.N. Bakul Institute for Superhard Materials, NASU. 2 Avtozavodskaya Str., 04074, Kiev, Ukraine
The advantages of friction stir welding (FSW) are well known from numerous publications. In this work it was proposed to apply FSW in restoration of sizes of copper plates of machines for continuous casting of billets (MCCB) moulds and for the further surface hardening with nickel or nickel alloys. The microstructure of characteristic zones of joints was studied. Application of FSW provides quality joints with sufficiently high mechanical properties of deposited layer. The structure of copper-copper and copper-nickel joints was studied. It was established that in formation of joints the mechanical stirring of metals plays a leading role, and their mutual diffusion affects them to a much lesser extent. Experimental investigations were laid as the basis for development of restoration technology of copper plates with nickel coating. 14 Ref., 10 Figures.
Keywords: friction stir welding, restoration of copper plates, layer deposition, copper, nickel, structure of joints, working tool
Received:                10.04.15
Published:               28.07.15
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