Article 11415

Title of the article

EFFICIENCY OF SURFACE PLASTIC DEFORMATION OF DETAILS MADE OF HIGH-STRENGHT STEELS WHILE REPAIRING

Authors

Zyk Evgeniy Nikolaevich, Postgraduate student, Moscow State University of Informatics and Instrument Negineering (20 Stromynka street, Moscow, Russia), zyk.eugene@gmail.com
Pleshakov Viktor Viktorovich, Candidate of engineering sciences, professor, sub-department VT-12, Moscow State University of Informatics and Instrument Negineering (20 Stromynka street, Moscow, Russia), pleshakovvv@yandex.ru
Shurpo Aleksandr Nikolaevich, Candidate of engineering sciences, senior staff scientist, laboratory №1, Institute of Engineering and Design Informatics of the Russian Academy of Sciences (building 1a, 18 Vadkovsky lane, Moscow, Russia), a-shurpo@yandex.ru

Index UDK

621.7.09

Abstract

Background. The research object is the details made of high-strength constructional steel of 30HGSN2A grade. The research subject is a process of fatigue stresses formation in a surface layer in the presence of preliminary running time. The aim of the research is to assess efficiency of repeated hardening of details from steel of 30HGSN2A grade for the purpose of repair after exploitation.
Materials and methods. A fatigue stresses formation research was carried out by means of several multifactorial experiments using methods of non-destructive testing. The research findings were processed by methods of regressive analysis.
Results. The research resulted in acquisition of regression models of dependence of changes of stresses, ultrasonic acoustic signal amplitudes and fatigue point values on processing factors and durability. The authors propose an optimal treatment schedule.
Conclusions. The analysis of the research data allowed to confirm existing theories about the physical nature of fatigue processes and to draw a conclusion about efficiency of using the repeated hardening process after exploitation for the purpose of repair.

Key words

preliminary operation time, life time, fatigue strength, treatment by shot, surface, repair, nondestructive control methods, hypersonic method, x ray diffraction method.

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References

1. Pleshakov V. V., Skhirtladze A. G., Nikiforova T. V., Dolgov V. A. Programmnoe poverkhnostnoe plasticheskoe deformirovanie detaley vysokoprochnykh staley [Programmed surface plastic deformation of detail made of high-strength steels]. Moscow: INTS, 2002, 111 p.
2. Sokolik A. I. Kontrol' tekhnologicheskikh i ekspluatatsionnykh svoystv izdeliy iz vysokoprochnykh staley metodom effekta Barkgauzena: dis. kand. tekhn. nauk. [Testing of technological and operational properties of products made of high-strength steels by the Barkhausen effect method: dissertation to apply for the degree of the candidate of engineering sciences]. Minsk, 1984, 164 p.
3. Pleshakov V. V., Albagachiev D. A., Zyk E. N. Fundamental'nye issledovaniya i innovatsionnye tekhnologii v mashinostroenii: tr. II Mezhdunar. nauch. konf. [Fundamental research and innovative technologies in machine building: proceedings of II International scientific conference]. Moscow: IMASh RAN, 2012, pp. 365–368.
4. Pleshakov V. V. Informatika i tekhnologii: mezhvuz. sb. tr. nauch.-tekhn. konf. Mosk. gos. un-ta priborostr. i inform [Informatics and technologies: interuniversity proceedings of the scientific and technical conference of Moscow university of instrument engineering and informatics]. Issue. XVII. Moscow: MGUPI, 2011, pp. 226–235.

 

Дата создания: 12.05.2016 11:38
Дата обновления: 12.05.2016 13:52