I. V. Minaev, A. E. Gvozdev, A. G. Kolmakov, A. N. Sergeev, S. N. Kutepov, D. S. Klement’ev, I. V. Golyshev
{"title":"30KhGS钢齿轮激光切割硬化研究","authors":"I. V. Minaev, A. E. Gvozdev, A. G. Kolmakov, A. N. Sergeev, S. N. Kutepov, D. S. Klement’ev, I. V. Golyshev","doi":"10.1134/S0036029524700757","DOIUrl":null,"url":null,"abstract":"<p>The microstructure and microhardness of the surface layer of the gearwheels produced by laser cutting of 6-mm-thick 30KhGS sheet steel disks at a laser power of 1200 W and a cutting speed of 20 mm/s are studied. The structure of the heat-affected zone is found to have the following structure: a 6-μm-thick white layer forms on the cutting surface; under it, a structure consisting of martensite and a small amount of retained austenite forms at the side facing a gas jet; at the side facing laser radiation, the structure consists of a sorbite–troostite mixture with spheroidized carbide inclusions. Below, the structure is represented by a sorbite–troostite mixture and martensite grains. The modified layer thickness is 100–250 μm, and the hardness of the layer can reach 500–716 HV.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 2","pages":"431 - 437"},"PeriodicalIF":0.4000,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Hardening of 30KhGS Steel Gearwheels during Laser Cutting\",\"authors\":\"I. V. Minaev, A. E. Gvozdev, A. G. Kolmakov, A. N. Sergeev, S. N. Kutepov, D. S. Klement’ev, I. V. Golyshev\",\"doi\":\"10.1134/S0036029524700757\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The microstructure and microhardness of the surface layer of the gearwheels produced by laser cutting of 6-mm-thick 30KhGS sheet steel disks at a laser power of 1200 W and a cutting speed of 20 mm/s are studied. The structure of the heat-affected zone is found to have the following structure: a 6-μm-thick white layer forms on the cutting surface; under it, a structure consisting of martensite and a small amount of retained austenite forms at the side facing a gas jet; at the side facing laser radiation, the structure consists of a sorbite–troostite mixture with spheroidized carbide inclusions. Below, the structure is represented by a sorbite–troostite mixture and martensite grains. The modified layer thickness is 100–250 μm, and the hardness of the layer can reach 500–716 HV.</p>\",\"PeriodicalId\":769,\"journal\":{\"name\":\"Russian Metallurgy (Metally)\",\"volume\":\"2024 2\",\"pages\":\"431 - 437\"},\"PeriodicalIF\":0.4000,\"publicationDate\":\"2025-01-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Russian Metallurgy (Metally)\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0036029524700757\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Metallurgy (Metally)","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0036029524700757","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Hardening of 30KhGS Steel Gearwheels during Laser Cutting
The microstructure and microhardness of the surface layer of the gearwheels produced by laser cutting of 6-mm-thick 30KhGS sheet steel disks at a laser power of 1200 W and a cutting speed of 20 mm/s are studied. The structure of the heat-affected zone is found to have the following structure: a 6-μm-thick white layer forms on the cutting surface; under it, a structure consisting of martensite and a small amount of retained austenite forms at the side facing a gas jet; at the side facing laser radiation, the structure consists of a sorbite–troostite mixture with spheroidized carbide inclusions. Below, the structure is represented by a sorbite–troostite mixture and martensite grains. The modified layer thickness is 100–250 μm, and the hardness of the layer can reach 500–716 HV.
期刊介绍：
Russian Metallurgy (Metally) publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.
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