Scientific paper ID 2356 : 2023/4
IDENTIFICATION OF SURFACE PROPERTIES OF STEEL BН11 DEPENDING ON THE CONDITIONS OF IONIC NITRIDING

Velichko Machev, Viktor Georgiev, Nikolay Tonchev, Iliya Zyumbilev

In this communication, the influence of the technological parameters on the surface properties of ВН11 steel depending on the conditions of ionic nitriding is examined. The complexity of the problem regarding the identification of the cited technological process lies in the fact that there are more than two technological parameters, and the examined criteria have a different relationship to them. After establishing the relationship between technological parameters and examined criteria through the definition of the models, it is possible to apply a process of identification of surface properties depending on the processing mode. For this process, the DEFMOT system was used to support technological decision-making. With the help of this system, images were built, and analysis was made for the microhardness, the relative wear resistance, the thickness of the nitrided zone and the phase composition of ВН11 steel depending on the conditions of ion nitriding.


ion nitriding heat resistant tool steels modeling property identification optimization DEFMOT.ion nitriding heat resistant tool steels modeling property identification optimization DEFMOT.Velichko Machev Viktor Georgiev Nikolay Tonchev Iliya Zyumbilev

BIBLIOGRAPHY

[1] Tontchev, N., Materials science, Effective solutions, and technological variants, Lambert, Academic Publishing, 2014, 142 р.

[2] Paulo, D.J., Surface Integrity in Machining Springer, 2010, 222 p.

[3] Zumbilev, A.P., Zumbilev, I.A., Ionic nitriding and carbonitriding of steels, 2020, 325 р., ISBN: 978-619-236-187-7 (in Bulgarian)

[4] Abdelkhalik, O., Engineering Systems Optimization, Boca Raton:CRC Press, 2021, 230 p.

[5] Statnikov, R.B., Matusov J.B., Multicriteria Optimization and Engineering, Springer, 1995, 250 p.

[6] Zumbllev, I., About the influence of ion carbonitriding on the chemical composition of the carbonitride zone, Journal of Food and Packaging Science, Technique and Technologies, No. 8, National Academy of Packaging, Bulgaria, 2016, pp.10-13.

[7] Zumbilev, I., About wear resistance of nitrided and carbonitrided layers, Journ. “Annals of the Faculty of Engineering Hunedoara”, Tome XIII, Fascicle 1, Romania, 2015, pp. 53-56.

[8] Vuchkov, I., Boyadjieva, L., Quality Improvement with Design of Experiments. A Response Surface Approach, 2001.

[9] Tonchev, N, Gaydarov, V., N. Hristov, N., Analizi, i prilozheniya chrez izchislitelniya podhod DEFMOT, Sofiya, 2022, 167 r. (in Bulgarian)
( [9] Тончев, Н, Гайдаров, В., Н. Христов, Н., Анализи, и приложения чрез изчислителния подход DEFMOT, София, 2022, 167 р. (in Bulgarian) )

 

 

 

This site uses cookies as they are important to its work.

Accept all cookies
Cookies Policy