V. P. Kuznetsov, A. V. Korelin, V. V. Voropaev, A. S. Yurovskikh, A. S. Skorobogatov
{"title":"热化学和表面机械处理对20Kh （20Cr4）钢组织、性能和抗疲劳性能的影响","authors":"V. P. Kuznetsov, A. V. Korelin, V. V. Voropaev, A. S. Yurovskikh, A. S. Skorobogatov","doi":"10.1007/s11041-025-01124-7","DOIUrl":null,"url":null,"abstract":"<p>A comparative analysis of the structure, properties of the surface layer and fatigue resistance of samples of steel 20Kh (20Cr4) subjected to gas carburizing, quenching and low tempering with subsequent surface treatments — grinding, diamond burnishing or nanostructuring burnishing with a PSTM DBN tool after preliminary turning is carried out. Fatigue tests of cylindrical samples are performed using a bending-twisting scheme according to the ASTM E466-07 Standard, and their fractures are examined. It is shown that the surface layer with a nanocrystalline structure suppresses the development of fatigue cracks until 1.9 × 10<sup>5</sup> test cycles of treatment at a load of 1000 MPa. The surface layer formed by the nanostructuring burnishing has a thickness of 8– 10 μm, a nanocrystalline structure, and a microhardness of 1185 <i>HV</i><sub>0.05</sub>; together with the deformed carburized layer with carbon concentration 0.97% at a distance of up to 125 μm from the surface it provides a higher fatigue resistance than the processing by grinding and diamond burnishing.</p>","PeriodicalId":701,"journal":{"name":"Metal Science and Heat Treatment","volume":"67 1-2","pages":"23 - 32"},"PeriodicalIF":0.5000,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Thermochemical and Surface Mechanical Treatments on the Microstructure, Properties and Fatigue Resistance of Steel 20Kh (20Cr4)\",\"authors\":\"V. P. Kuznetsov, A. V. Korelin, V. V. Voropaev, A. S. Yurovskikh, A. S. Skorobogatov\",\"doi\":\"10.1007/s11041-025-01124-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>A comparative analysis of the structure, properties of the surface layer and fatigue resistance of samples of steel 20Kh (20Cr4) subjected to gas carburizing, quenching and low tempering with subsequent surface treatments — grinding, diamond burnishing or nanostructuring burnishing with a PSTM DBN tool after preliminary turning is carried out. Fatigue tests of cylindrical samples are performed using a bending-twisting scheme according to the ASTM E466-07 Standard, and their fractures are examined. It is shown that the surface layer with a nanocrystalline structure suppresses the development of fatigue cracks until 1.9 × 10<sup>5</sup> test cycles of treatment at a load of 1000 MPa. The surface layer formed by the nanostructuring burnishing has a thickness of 8– 10 μm, a nanocrystalline structure, and a microhardness of 1185 <i>HV</i><sub>0.05</sub>; together with the deformed carburized layer with carbon concentration 0.97% at a distance of up to 125 μm from the surface it provides a higher fatigue resistance than the processing by grinding and diamond burnishing.</p>\",\"PeriodicalId\":701,\"journal\":{\"name\":\"Metal Science and Heat Treatment\",\"volume\":\"67 1-2\",\"pages\":\"23 - 32\"},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2025-07-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Metal Science and Heat Treatment\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11041-025-01124-7\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metal Science and Heat Treatment","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11041-025-01124-7","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Effect of Thermochemical and Surface Mechanical Treatments on the Microstructure, Properties and Fatigue Resistance of Steel 20Kh (20Cr4)
A comparative analysis of the structure, properties of the surface layer and fatigue resistance of samples of steel 20Kh (20Cr4) subjected to gas carburizing, quenching and low tempering with subsequent surface treatments — grinding, diamond burnishing or nanostructuring burnishing with a PSTM DBN tool after preliminary turning is carried out. Fatigue tests of cylindrical samples are performed using a bending-twisting scheme according to the ASTM E466-07 Standard, and their fractures are examined. It is shown that the surface layer with a nanocrystalline structure suppresses the development of fatigue cracks until 1.9 × 105 test cycles of treatment at a load of 1000 MPa. The surface layer formed by the nanostructuring burnishing has a thickness of 8– 10 μm, a nanocrystalline structure, and a microhardness of 1185 HV0.05; together with the deformed carburized layer with carbon concentration 0.97% at a distance of up to 125 μm from the surface it provides a higher fatigue resistance than the processing by grinding and diamond burnishing.
期刊介绍：
Metal Science and Heat Treatment presents new fundamental and practical research in physical metallurgy, heat treatment equipment, and surface engineering.
Topics covered include:
New structural, high temperature, tool and precision steels;
Cold-resistant, corrosion-resistant and radiation-resistant steels;
Steels with rapid decline of induced properties;
Alloys with shape memory effect;
Bulk-amorphyzable metal alloys;
Microcrystalline alloys;
Nano materials and foam materials for medical use.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
