高碳硅钢中贝氏体纳米结构亚基的高分辨率表征

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

Metal Science and Heat Treatment Pub Date : 2024-02-19 DOI:10.1007/s11041-024-00978-7

Xin Zhang, Ying Yao, Ruiqi Guo, Tianyu Cui

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引用次数: 0

摘要

高分辨率电子显微镜对高碳硅钢奥氏体回火形成的纳米贝氏体的微观结构进行了表征。结果表明，贝氏体波形由纳米级子单元组成。在一个贝氏体板条中，每个亚单元的晶格畸变类型都有明显差异。最新生成的亚单元畸变最大。随着亚基的长大，晶格畸变逐渐减小。这表明亚基在形成时具有较高的相变应变能，从而导致严重的晶格畸变。这些结果为理解贝氏体铁素体的形成机制提供了新的实验证据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

High-Resolution Characterization of Subunits in Nanostructured Bainite in High-Carbon Silicon Steel

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High-Resolution Characterization of Subunits in Nanostructured Bainite in High-Carbon Silicon Steel

The microstructure of nanostructured bainite formed by austempering in high-carbon silicon steel is characterized by high resolution electron microscopy. The results show that the bainitic sheaves consist of nanoscale subunits. The found kinds of crystal lattice distortions of each subunit in one bainite lath show clear difference. The latest generated subunit has most distortions. As the subunit grows up, the lattice distortion gradually gets relaxed. This indicates that the subunits form with high phase transformation strain energy, which causes severe lattice distortion. The results provide new experimental evidence on subjects relevant to the understanding of the mechanism of formation of bainitic ferrite.

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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.