Influence of the grain size of rolled sparingly alloyed steel on the quality of manufacture of gears
https://doi.org/10.21122/1683-6065-2024-4-68-75
Abstract
A rational set of mechanical properties and high hardenability of the diffusion layer ensure the use of sparingly alloyed steels for large‑module gears. The technology currently used by metallurgical plants for the production of hot‑rolled carburized steel does not ensure a stable production of a fine‑grained structure in products. The results of studies of rolled samples of sparingly alloyed structural steel 21KhGNMBA, heat‑treated according to different technological schemes are given. It has been established that at the same austenitic grain of the metal, rolled products from two suppliers differ significantly in the size of the actual grain. Coarse‑grained microstructure structure is explained by peculiarities of heat treatment of rolled products with long delayed cooling at incomplete annealing without recrystallization. It was obtained that the initial coarse‑grained structure of rolled products increased the tendency to grain aggregation of products during subsequent high‑temperature treatment, which led to an increase in the hardenability of steel and increased kinematic error of gears made of this rolled product.
About the Authors
S. P. Rudenko
Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus
Belarus
Minsk, 12, Akademicheskaja str.
Belarus
Minsk, 12, Akademicheskaja str.
A. L. Val’ko
Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus
Belarus
Minsk, 12, Akademicheskaja str.
Belarus
Minsk, 12, Akademicheskaja str.
S. G. Sandomirski
Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus
Belarus
Minsk, 12, Akademicheskaja str.
Belarus
Minsk, 12, Akademicheskaja str.
References
1. Konovalov L. V. Rol’ i prioritetnye napravleniya konstrukcionnoj nadezhnosti mashin pri sovremennyh tendenciyah razvitiya mashinostroeniya [The role and priority directions of structural reliability of machines in the modern trends in the development of mechanical engineering]. Vestnik mashinostroeniya = Bulletin of Mechanical Engineering, 1996, no. 11. pp. 14–18.
2. Rudenko S. P., Val’ko A. L. Osobennosti primeneniya ekonomnolegirovannyh stalej dlya krupnomodul’nyh zubchatyh koles [Feature of application of the economical steel alloy for largely modular gear wheels]. Stal’ = Steel, 2018, no 8, pp. 54–58.
3. Rudenko S. P., Val’ko A. L., Sandomirski S. G. Ocenka primenimosti ekonomnolegirovannyh stalej dlya vysokonapryazhennyh zubchatyh koles [Evaluation of the applicability of economically alloyed steels for high‑stress gears]. Aktual’nye voprosy mashinovedeniya: sb. nauch. tr. = Collection of scientific papers. Minsk, OIM NAN Belarusi Publ., 2018, vol. 7, pp. 346–349.
4. Val’ko A. L., Rudenko S. P., Chichin A. N. Vliyanie vakuumnoj vysokotemperaturnoj cementacii na velichinu zerna konstrukcionnyh stalej [Effect of vacuum high‑temperature carburizing on grain size of structural steels], Aktual’nye voprosy mashinovedeniya: sb. nauch. tr. = Topical issues of mechanical engineering. Collection of scientific papers, Minsk, OIM NAN Belarusi Publ., 2014, vol. 3, pp. 343–346.
5. Rudenko S. P., Val’ko A. L., Mosunov E. I. Tekhnicheskie trebovaniya k kachestvu cementovannyh sloev zubchatyh koles transmissij energonasyshchennyh mashin [Technical requirements to the quality of cemented layers of gear wheels of transmissions of energy‑consuming machines]. Avtomobil’naya promyshlennost’= Automotive industry, 2011, no. 9, pp. 33–36.
6. Pivcaev I. V., Zazyan A. S., Levotchenko O. L., Konovalenko S. V., Bugrimov A.A. Opyt proizvodstva stali marki 4130 s minimal’noj stepen’yu zagryaznennosti nemetallicheskimi vklyucheniyami [Experience of production of 4130 grade steel with minimal degree of contamination by non‑metallic inclusions]. Litejnoe proizvodstvo i metallurgiya 2022. Belarus’: trudy 30‑j Mezhd. nauch.tekhn. konf. = Foundry production and metallurgy 2022. Belarus: Proceedings of the 30th International Scientific and Technical Conf. Minsk, 2022, pp. 118–126.
7. Kovaleva I.A. Ovchinnikova I.A. Stefanovich S. V. Razrabotka meropriyatij po optimizacii himicheskogo sostava v cementuemoj marke stali 16MnCrS5 dlya ustraneniya prichin vozniknoveniya rosta krupnyh austenitnyh zeren [Development of actions on optimization of chemical composition of carburized steel grade 16MnCrS5 to eliminate the causes of the growth of large austenite grains]. Lit’e i metallurgiya = Foundry production and metallurgy, 2019, no. 1. pp. 49–56.
8. Hodosovskaya N.A., Kovaleva I.A. Issledovanie vozdejstviya niobiya na razmer zerna austenita cementcemyh stalej pri vysokotemperaturnoj termicheskoj obrabotke [Investigation of niobium effect on austenite grain size of cement steels during hightemperature heat treatment]. Litejnoe proizvodstvo i metallurgiya 2022. Belarus’: trudy 30‑j Mezhd. nauch.‑tekhn. konf. = Foundry production and metallurgy 2022. Belarus: Proceedings of the 30th International Scientific and Technical Conf. Minsk, 2022, pp. 79–83.
9. Rudenko S. P., Val’ko A. L., Sandomirski S. G. Razrabotka minimal’no legirovannoj konstrukcionnoj stali dlya krupnomodul’nyh zubchatyh koles transmissij [Development of minimally alloyed structural steel for toothed gear wheels of transmissions]. Mekhanika mashin, mekhanizmov, materialov = Mechanics of mashins, mechanisms and materials, 2020, no. 4, pp. 52–59.
10. Goldstein M. I., Farber V. M. Dispersionnoe uprochnenie stali [Dispersion hardening of steel]. Moscow, Metallurgiya Publ., 1979, 208 p.
11. Val’ko A. L., Rudenko S. P., Mosunov E. I., Mihlyuk A. I. Pat. 15273 Resp. Belarus’. MPK S 23F 1/28, published 30.12.2011.
12. Rudenko S. P., Kuz’menkov O. V., Val’ko A. L., Shipko A.A. Raschet prokalivaemosti konstrukcionnyh stalej (H‑Steel) [Calculation of hardenability of structural steels], reg. № 846; data registr. 12.01.2016.
13. Rudenko S. P., Sandomirski S. G., Val’ko A. L., Shishko S.A., Karpovich P. G. Analiz primeneniya kompleksno‑legirovannyh stalej dlya zubchatyh koles kar’ernyh samosvalov [Analysis of application of complex‑alloyed steels for gear wheels of quarry dump trucks]. Mekhanika mashin, mekhanizmov, materialov = Mechanics of mashins, mechanisms and materials, 2018, no. 2, pp. 55–60.
Review
For citations:
Rudenko S.P., Val’ko A.L., Sandomirski S.G. Influence of the grain size of rolled sparingly alloyed steel on the quality of manufacture of gears. Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY). 2024;(4):68-75. (In Russ.) https://doi.org/10.21122/1683-6065-2024-4-68-75
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