双相不锈钢 2205（03Kh22N6M2）中西格玛相的研究与表征

IF 0.6 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Metal Science and Heat Treatment Pub Date : 2024-02-17 DOI:10.1007/s11041-024-00969-8

Reena Nagar, Krunal Kumar Patel, Anil Parmar

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引用次数: 0

摘要

本研究介绍了西格玛相的形成、特征及其对双相不锈钢 2205 性能的影响。该钢的热处理模式为：加热至 850°C，保温 6 小时，然后在不同介质（即熔炉、空气和水）中冷却。光学金相方法显示，经过所有热处理后，钢材微观结构中的铁素体区域内都存在西格玛相；在炉中冷却后，检测到西格玛相的数量略有增加。与西格玛相同时出现的还有一些细小的碳化物和氮化物。SEM 和 EDS 表征证实，σ相的化学成分为 Fe - 12.2Cr - 2.1Mo。水淬钢的硬度为 336 HB，比热处理前的硬度高 47%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Study and Characterization of Sigma Phase in Duplex Stainless Steel 2205 (03Kh22N6M2)

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Study and Characterization of Sigma Phase in Duplex Stainless Steel 2205 (03Kh22N6M2)

A study of sigma phase formation, its characterization, and its effect on the properties of duplex stainless steel 2205 are presented. The steel has been heat treated according to the mode: heating to a temperature of 850°C, holding during 6 h and cooling in various media, i.e., furnace, air, and water. The optical metallographic methods reveal sigma phases within the ferrite region of the steel microstructure after all the heat treatments; a slightly elevated amount of the phase is detected after cooling with the furnace. Some fine carbides and nitrides are encountered along with the sigma phase. The SEM and EDS characterization confirms that the chemistry of the sigma phase is Fe – 12.2Cr – 2.1Mo. The hardness of the water-quenched steel is 336 HB, which is 47% higher than its hardness before the heat treatment.

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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.