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Registration Number

0224U000720, 0121U108387 , R & D reports

Title

Investigation of the influence of microalloying and modification on molding structures of high-alloy weld metal, resistant to wear and cyclic thermal loads

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Head

Riabtsev Ihor О., Доктор технічних наук

Registration Date

11-01-2024

Organization

E. O. Paton Elektric Welding Institute National Academy of scinces of Ukraine

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 As a result of the research, the optimal content of microalloying and modifying elements in the metal surfacing by the arc method with PP-Np-25X5FMS and PP-Np-35V9X3GSF wires was determined. It is shown that microalloying with boron or titanium carbides in the amount of 0.01% increases the wear resistance and heat resistance of the surfacing metal of these types up to 1.5...2.0 times. It was also established that boron microalloying of armor steel-type metal deposited with the developed PP-Np-50Х3М2НСГФ powder wire significantly increases its resistance to local shock loads. In plasma-powder surfacing, microalloying the powder of tool steel 10R6M5 with boron or aluminum leads to grinding of the grain and the formation of a finer eutectic in the structure of the metal surfacing with this powder. The durability of cutters made of welded steel 10R6M5, microalloyed with boron or aluminum in the amount of 0.05...0.06%, is 1.2...1.4 times higher than the durability of cutters made of forged high-speed steel P6M5. The technology of electroslag surfacing with high-chromium cast iron electrodes of the linings of the SMD-111 jaw crusher has been developed. According to the developed technology, a batch of side linings of the SMD-111 crusher was deposited. Research and industrial testing confirmed the high wear resistance of surfacing side linings. The technology for obtaining bimetallic reinforcing elements of the ESS by shot from high-chromium cast iron has been developed. Reinforcing bimetallic elements were used to strengthen the heavy-duty bucket of the "Caterpillar" loader. The experience of operating the loader has shown that its durability is significantly increased as a result of welding reinforcing elements with a cast iron layer thickness ≥ 30 mm.

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Avramenko Mykhailo
Babinets Anatoliy A
Kuskov Yurij Mykhajlovych
Lentyuhov Ivan P
Netyaga Anton V.
Okopnyk Larisa
Osin Vladyslav V.
Pereplechikov Evgen F.
Ryabtsev Igor I
Ryabtsev Ihor O.
Tyshchenko Victor

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2024-01-11