Effect of Ageing Temperature on the Memory Properties of FeMnSiCrNiTi Alloys Deposited by Laser Directed Energy Deposition

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

Metal Science and Heat Treatment Pub Date : 2025-07-28 DOI:10.1007/s11041-025-01134-5

H. Sun, H. Y. Wang, Q. Zhang, X. M. Yuan, C. S. Zhu

引用次数: 0

Abstract

The effect of aging at temperatures of 550, 650 and 750°C for 30 min on the microstructure, phase composition and shape memory characteristics of the Fe17Mn6Si9Cr5Ni1Ti alloy obtained by wire laser directed energy deposition technique is studied. It is shown that with an increase in the aging temperature, the amount of cooling martensite in the alloy structure decreases, the number of TiC precipitations increases, and ferrite is gradually eliminated. In this case, the shape recovery rate of the alloy first increases and then decreases. The mechanism of the effect of aging on the shape memory characteristics of the Fe17Mn6Si9Cr5Ni-1Ti alloy is discussed.

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时效温度对激光定向能沉积FeMnSiCrNiTi合金记忆性能的影响

研究了550、650和750℃时效30 min对激光定向能沉积法制备的Fe17Mn6Si9Cr5Ni1Ti合金的显微组织、相组成和形状记忆特性的影响。结果表明，随着时效温度的升高，合金组织中的冷却马氏体数量减少，TiC析出物数量增加，铁素体逐渐消除。在这种情况下，合金的形状恢复速率先增大后减小。探讨了时效对Fe17Mn6Si9Cr5Ni-1Ti合金形状记忆特性影响的机理。

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.