Effect of Cyclic Annealing Mode on Microstructure and Hardness of Structural Steel 50KhFA

IF 0.5 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Metal Science and Heat Treatment Pub Date : 2025-07-30 DOI:10.1007/s11041-025-01130-9

I. D. Pospelov, D. V. Matveeva, Ya. D. Bunina

引用次数: 0

Abstract

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.

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循环退火方式对50KhFA结构钢显微组织和硬度的影响

研究了50KhFA （0.50-Cr-V）热轧结构钢在采用和新开发的循环退火方式后的显微组织和硬度。结果表明，热轧钢退火后不可能从初始铁素体-珠光体状态获得具有典型碳化物相分布的100%粒状珠光体组织。所建议的新循环退火模式更有效，因为它在退火轧制产品的整个横截面上提供了更均匀的粒状珠光体分布，并且硬度显著降低。在冶金生产中推荐了这种新的退火方式。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Metal Science and Heat Treatment 工程技术-冶金工程

CiteScore

1.20

自引率

16.70%

发文量

102

审稿时长

4-8 weeks

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.