高级高强度钢中残余奥氏体的表征。

4区工程技术 Q3 Physics and Astronomy

Scanning Pub Date : 2023-01-01 DOI:10.1155/2023/9565903

Shouhua Li, Kejian Li, Longzhu Zhang, Yi Feng, Ziquan Liu, Pengjun Cao, Bo Liu, Jiling Dong

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引用次数: 0

摘要

高级高强钢中残余奥氏体的存在直接影响高强钢的塑性。准确地描述它们的内容和类型是非常重要的。本文制备了三种不同Mn含量(1.0%、1.4%、1.7%)的试样，通过超快冷却热处理获得高强度钢。采用x射线德拜环测量系统、电子背散射衍射(EBSD)和透射电镜(TEM)对RA的体积含量和分布进行了分析。此外，力学拉伸试验提供了三个试样的拉伸性能和伸长率。结果表明，随着Mn含量的增加，岛状RA和薄膜状RA均增加，可有效提高马氏体钢的塑性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Characterization of Retained Austenite in Advanced High-Strength Steel.

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Characterization of Retained Austenite in Advanced High-Strength Steel.

The retained austenite (RA) in advanced high-strength steels directly affects their plasticity. It is very important for the accurate characterization of their content and types. This paper prepared three specimens with three different Mn contents (1.0%, 1.4%, and 1.7%) that are used to obtain high-strength steel by ultrafast cooling heat treatment. The volume content and distribution of the RA were analysed by an X-ray Debye ring measurement system, electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM). In addition, the mechanical tensile test provided the tensile properties and elongation of three specimens. It was finally concluded that when the content of Mn increased, the island-type and thin film-type RA both increased, which may effectively improve the plasticity of the martensitic steels.

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来源期刊

Scanning 工程技术-显微镜技术

CiteScore

4.40

自引率

0.00%

发文量

111

审稿时长

6-12 weeks

期刊介绍： Scanning provides an international and interdisciplinary medium for the rapid exchange of information among all scientists interested in scanning electron, scanning probe, and scanning optical microscopies. Areas of specific interest include all aspects of the instrumentation associated with scanning microscopies, correlative microscopy techniques, stereometry, stereology, analytic techniques, and novel applications of the microscopies.