不同程度应变时效效应下低碳钢的变形与延性钢在应变时效过程中的延性损失

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

Metal Science and Heat Treatment Pub Date : 2025-05-09 DOI:10.1007/s11041-025-01100-1

V. M. Farber, A. N. Morozova, O. V. Selivanova, V. A. Khotinov

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引用次数: 0

摘要

采用数字图像相关法确定了造成250c高温热处理后08G2B （08Mn2Nb）钢低延性的细观和宏观结构和变形因素。影响因素包括：在1/3的试样中存在小范围的带状变形机制，在短屈服平台上仅形成两条应变带，当两条应变带相交时形成应变源。另外两个应变源出现在张力的线性和指数阶段，当位错在分布变形过程中被解除时。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Deformation and Ductility of Low-Carbon Steel with Different Magnitudes of Strain Aging Effect. 3. Loss of Ductility During Strain Aging of Steel

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Deformation and Ductility of Low-Carbon Steel with Different Magnitudes of Strain Aging Effect. 3. Loss of Ductility During Strain Aging of Steel

The digital image correlation method is used to determine the structural and deformation factors at the meso- and macro-levels responsible for the low ductility of steel 08G2B (08Mn2Nb), which exhibits the effect of strain aging after heating at 250°C. The factors include a small scale of plastic deformation by the banded mechanism localized in about 1/3 of the sample, where only two strain bands are formed on a short yield plateau and form a strain source when they intersect. The other two strain sources arise in the linear and exponential stages of the tension, when dislocations are unlocked during the distributed deformation.

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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.