The laboratory tests of hybrid layers combining hardfacing and nitriding dedicated to increase the durability of forging tools in hot forging processes

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Paweł Widomski
Zbigniew Gronostajski
Marcin Kaszuba
Jagoda Kowalska
Mariusz Pawełczyk


In response to the growing need to use wear-resistant layers that increase durability of tools in forging pro-cesses, hybrid layers have been proposed that combine hardfacing with nitriding treatment. This article presents the results of laboratory tests of surface wear-resistant layers made with a new hybrid technology Gas-Shielded Metal Arc surfacing (hardfacing) with ZeroFlow gas nitriding. Specimens made with hardfacing or nitriding were prepared and examined. Analysis covered the thorough microstructure study, EDX chemical composition analysis and microhardness analysis. In experiment, 3 different types of nitrided layers were proposed for alpha, gamma prim and epsilon nitrides in the surface layer. The results of metallographic research in the surface layer was presented. The analysis of chemical composition in the particular overlay welds was performed to determine the content of alloying elements in the particular overlay welds. The susceptibility to nitriding of used weld materials as well as the ability to form particular types of nitrides on selected welded substrates was also tested.


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P. Widomski, Z. Gronostajski, M. Kaszuba, J. Kowalska, and M. Pawełczyk, “The laboratory tests of hybrid layers combining hardfacing and nitriding dedicated to increase the durability of forging tools in hot forging processes”, Weld. Tech. Rev., vol. 91, no. 2, Feb. 2019.
Original Articles


Zwierzchowski M., Factors Affecting the Wear Resistance of Forging Tools, Archives of Metallurgy and Materials, 2017, Vol. 62 (3), 1567-1576.

Choi C., Groseclose A., Altan T., Estimation of plastic deformation and abrasive wear in warm forging dies, Journal of Materials Processing Technology, 2012, Vol. 212 (8), 1742-1752.

Bayramoglu M., Polat H., Geren N., Cost and performance evaluation of different surface treated dies for hot forging process, Journal of Materials Processing Technology, 2008, Vol. 205 (1-3), 394-403.
https://doi. org/10.1016/j.jmatprotec.2007.11.256.

Małdzinski L., Liliental W., Tymowski G., Tacikowski J., New possibilities for controlling gas nitriding process by simulation of growth kinetics of nitride layers, Surface Engineering, 1999, Vol. 15 (5), 377-384.
doi: 10.1179/026708499101516740.

Małdziński L., Ostrowska K., Okoniewicz P., Controlled ZeroFlow gas nitriding as a method increasing the durability of dies for hot extrusion of aluminum profiles, Metal Forming, Obróbka Plastyczna Metali, 2014, Vol. XXV (3), 169-183.

Lazić V., Arsić D., Nikolić R., Reparation of damaged forging dies by hard facing (HF) technology, Production Engineering Archives, 2015, Vol. 6 (1), 26-29.
DOI: 10.30657/pea.2017.06.07.

Hawryluk M., Gronostajski Z., Widomski P., Influence of the application of a PN+CrN hybrid layer on improvement of the lifetime of hot forging tools, Journal of Materials Processing Technology, 2018, Vol. 258, 226-238.

Gronostajski Z., Widomski P., Kaszuba M., Zwierzchowski M., Hawryluk M., Influence of both hardfaced and nitrided layers on the durability of hot forging tools, Surface Innovations, 2018, Vol. 6 (4-5), 301-310.

Yokoyama H., Iio M., (2015) Engine Valve Japanese Patent JP 2012077998 W 20121030, EP 2915965 A1.

Alphonsa J., Padsala B.A., Chauhan B.J., Plasma nitriding on welded joints of AISI 304 stainless steel, Surface and Coatings Technology, 2013, Vol. 228 (Supl1), S306-S311.

Lukin V.I., Kovalchuk V.G., Golev Y.V., Mazalov I.S., Ovchenkova I.I., Welding a creep-resisting Ni–Co–Cr (VZh171) alloy strengthened by nitriding, Welding International, 2013, Vol. 27 (11), 897-902.
DOI: 10.1080/09507116.2013.796642.

Berkowski L., Wpływ struktury na skutki azotowania chromowych stali ledeburytycznych, część 1: Informacje o materiale do badań, Obróbka Plastyczna Metali, 2005, Vol. 1 (5).