{"title":"循环退火方式对50KhFA结构钢显微组织和硬度的影响","authors":"I. D. Pospelov, D. V. Matveeva, Ya. D. Bunina","doi":"10.1007/s11041-025-01130-9","DOIUrl":null,"url":null,"abstract":"<p>The microstructure and the hardness of hot-rolled structural steel 50KhFA (0.50-Cr-V)are studied after the employed and newly developed cyclic annealing modes. It is shown that it is impossible to obtain a 100% granular pearlite structure in hot-rolled steel after annealing from the initial ferrite-pearlite condition with typical distribution of the carbide phases. The suggested novel mode of cyclic annealing is more effective, because it provides a more uniform distribution of granular pearlite over the entire cross-section of the annealed rolled product and a significant decrease in the hardness. The new annealing mode is recommended for metallurgical production.</p>","PeriodicalId":701,"journal":{"name":"Metal Science and Heat Treatment","volume":"67 1-2","pages":"70 - 75"},"PeriodicalIF":0.5000,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Cyclic Annealing Mode on Microstructure and Hardness of Structural Steel 50KhFA\",\"authors\":\"I. D. Pospelov, D. V. Matveeva, Ya. D. Bunina\",\"doi\":\"10.1007/s11041-025-01130-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The microstructure and the hardness of hot-rolled structural steel 50KhFA (0.50-Cr-V)are studied after the employed and newly developed cyclic annealing modes. It is shown that it is impossible to obtain a 100% granular pearlite structure in hot-rolled steel after annealing from the initial ferrite-pearlite condition with typical distribution of the carbide phases. The suggested novel mode of cyclic annealing is more effective, because it provides a more uniform distribution of granular pearlite over the entire cross-section of the annealed rolled product and a significant decrease in the hardness. The new annealing mode is recommended for metallurgical production.</p>\",\"PeriodicalId\":701,\"journal\":{\"name\":\"Metal Science and Heat Treatment\",\"volume\":\"67 1-2\",\"pages\":\"70 - 75\"},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2025-07-30\",\"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/s11041-025-01130-9\",\"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/s11041-025-01130-9","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 Cyclic Annealing Mode on Microstructure and Hardness of Structural Steel 50KhFA
The microstructure and the hardness of hot-rolled structural steel 50KhFA (0.50-Cr-V)are studied after the employed and newly developed cyclic annealing modes. It is shown that it is impossible to obtain a 100% granular pearlite structure in hot-rolled steel after annealing from the initial ferrite-pearlite condition with typical distribution of the carbide phases. The suggested novel mode of cyclic annealing is more effective, because it provides a more uniform distribution of granular pearlite over the entire cross-section of the annealed rolled product and a significant decrease in the hardness. The new annealing mode is recommended for metallurgical production.
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.