Article title: Improving the quality of layers deposited on rolling rolls by optimising the composition of flux-cored wires
Authors: N. A. Kozyrev, N. V. Kibko, A. A. Umanskii, D. A. Titov and P. D. Sokolov
Journal: Welding International
Citation details: Vol. 32, No. 11, 724–728
DOI: https://doi.org/10.1080/09507116.2018.1443884
When this article was first published online the keywords, figures and table content were missing from the PDF and xml. The abstract was also formatted incorrectly.
The following items have now been added to the PDF and online view:
Abstract:
Experiments were carried out to investigate the effect of adding carbon–fluorine compounds (the waste from metallurgical production) and nickel powder to the composition of flux-cored wires of the C–Si–Mn–Cr–W–V and C–Si–Mn–Cr–V–Mo alloying systems. The results show that the addition of these compounds to the composition of the charge for producing the wires of the 35V9Kh3SF and 25Kh5FMS types improves a large number of the characteristics of the deposited layer: reduces the extent of contamination with non-metallic inclusions, increases the hardness of the deposited layer, refines austenite grains and results in the formation of fine-dispersion carbides which in practice may improve the thermal resistance of rolling rolls, and also prevents the formation of a ferrite network which may have a beneficial effect on cracking resistance. The experimental results can be used to develop new compositions of flux-cored wires for hardfacing rolling rolls protected by Russian Federation patents. The hardfacing technologies of the rolls using these flux-cored wires with the C–Si–Mn–Cr–W and C–Si–Mn–Cr–V–Mo alloying systems are now produced by the ElSib company.
Keywords: flux-cored wire, welding deposit, microstructure, non-metallic inclusions, austenite, carbides, hardness
Images files for Figures 1-4.
Table content for Tables 1-3.
This article is available both online and in print. Both versions are now correct.