A new approach for evaluating the resistance of wheel steel to spall formation

Author:

Lenkovskiy Taras1,Dzyubyk Andriy2,Vira Volodymyr3,Dzyubyk Lyudmyla4,Topilnytskyy Volodymyr5,Kovalchuk Roman6,Duriagina Zoia7,Volodymyrovych Kulyk Volodymyr8,Glazov Artem9

Affiliation:

1. Department of Strength and Durability of Structures under Complex Loading, Karpenko Physico-Mechanical Institute of the NAS of Ukraine, 5 Naukova St., Lviv 79060, Ukraine

2. Department of Welding Manufacture, Diagnostics and Restoration of Metal Structures, Institute of Engineering Mechanics and Transport, Lviv Polytechnic National University, 12 Bandera St., Lviv, 79013 Ukraine

3. Department of Bridges and Structural Mechanics, Institute of Building and Environmental Engineering, Lviv Polytechnic National University, 12 Bandera St., Lviv, 79013 Ukraine

4. Department of Machine Parts, Institute of Engineering Mechanics and Transport, Lviv Polytechnic National University, 12 Bandera St., Lviv, 79013 Ukraine

5. Department of Designing and Operation of Machines, Institute of Engineering Mechanics and Transport, Lviv Polytechnic National University, 12 Bandera St., Lviv, 79013 Ukraine

6. Department of Engineering Mechanics (Weapons and Equipment of Military Engineering Forces), Faculty of training specialists battle (operational) software, Hetman Petro Sahaidachnyi National Army Academy, 32 Heroes of Maidan St., Lviv 79012, Ukraine

7. Department of Applied Materials Science and Materials Engineering, Institute of Engineering Mechanics and Transport, Lviv Polytechnic National University, 12 Bandera St., Lviv 79013, Ukraine; Department of Physical Chemistry and Physicochemical Fundamenta

8. Department of Applied Materials Science and Materials Engineering, Institute of Engineering Mechanics and Transport, Lviv Polytechnic National University, 12 Bandera St., Lviv 79013, Ukraine

9. Department of Theoretical Fundamentals of Fracture Mechanics, Karpenko Physico-Mechanical Institute of the NAS of Ukraine, 5 Naukova St., Lviv 79060, Ukraine

Abstract

An effective theoretical-experimental approach to evaluation of wheel steels resistance to contactfatigue damage (spalling) formation by pitting mechanism is proposed. On the base of the results of experimental studies and calculations, the contact-fatigue life curve of high-tempered 65Г steel is built. The results are similar and compared to a model low-tempered 75ХГСТ steel.

Publisher

Faculty of Engineering, University of Rijeka

Subject

General Engineering

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