Simulation of diffusion processes in chemical and thermal processing of machine parts

K Kostyk, M Hatala, V Kostyk, V Ivanov, I Pavlenko… - Processes, 2021 - mdpi.com
To solve a number of technological issues, it is advisable to use mathematical modeling,
which will allow us to obtain the dependences of the influence of the technological …

Synthesis of optimal control of technological processes based on a multialternative parametric description of the final state

D Dmitriy - Восточно-Европейский журнал передовых …, 2017 - cyberleninka.ru
A method is proposed to establish control of technological processes that would be optimal
in terms of speed and final state on the basis of analyzing the solution of a system of …

Diffusion nitride coatings for heat-resistant steels

K Berladir, T Hovorun, V Ivanov, D Vukelic, I Pavlenko - Materials, 2023 - mdpi.com
The effect of ion nitriding and nitriding in a melamine-based powder mixture on the structure
and properties of AISI A290C1M steel was studied in the paper. Using ion nitriding made it …

Prediction of the microhardness characteristics, the removable material volume for the durability period, cutting tools durability and processing productivity depending …

G Kostyuk - Advances in Manufacturing II: Volume 4-Mechanical …, 2019 - Springer
The microhardness and yield strength decrease with grain size increasing for wide range of
the 0, 2 HfN+ 0, 8 ZrN coated materials (K40, Sandvik Koromant, MS221) was disclosed …

[PDF][PDF] Integrated approach to the development of the effectiveness function of quality control of metal products

I Dymko, A Muradian, Y Leheza… - Восточно …, 2017 - irbis-nbuv.gov.ua
Запропоновано принцип формування інтегрованої функції ефективності управління
якістю металургійної продукції. Характерною особливістю цієї функції є поєднання в ній …

Mathematical model of the mechanical properties of Ti-alloyed hypoeutectic cast iron for mixer blades

S Kharchenko, A Barsuk, N Karimova… - … and Engineering,(3), 2021 - papers.ssrn.com
The object of research is hypoeutectic cast iron intended for cast parts operating under
abrasive friction conditions. Such parts are mixer blades, the operational properties of which …

[PDF][PDF] The choice of the optimal temperature and time parameters of gas nitriding of steel

WAR Dhafer, V Kostyk, K Kostyk, A Glotka… - Восточно …, 2016 - irbis-nbuv.gov.ua
Досліджено вплив зміни технологічних параметрів на зміни властивостей зміцненого
шару сталі 38Х2МЮА. Встановлено, що глибина азотованого шару становить 40–650 …

[PDF][PDF] Development of mathematical models for planning the duration of shunting operations

A Lashenyh, S Turpak, S Gritcay… - Восточно …, 2016 - irbis-nbuv.gov.ua
Проведені дослідження залежності тривалості виконання маневрових операцій від
кількості вагонів та відстані переміщення составів. Проаналізовано існуючі способи …

Investigation of structural cast iron hardness for castings of automobile industry on the basis of construction and analysis of regression equation in the factor space" …

D Demin - Технологический аудит и резервы производства, 2018 - cyberleninka.ru
The object of research is structural iron with lamellar graphite, in which the carbon
equivalent (Ceq) is in the range (4.2-4.4)%, and the carbon content (C) in the range (3.42 …

[PDF][PDF] Development of a combined technology for hardening the surface layer of steel 38Cr2MoAl

FІI Alaa, O Akimov, K Kostyk - Восточно-Европейский журнал …, 2017 - irbis-nbuv.gov.ua
A multitude of steel parts work in conditions of increased surface wear, so there is a need of
this surface protection. Surface hardening methods can be divided into two main groups …