分散硬化铝合金的抗疲劳性能

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

Metal Science and Heat Treatment Pub Date : 2024-07-02 DOI:10.1007/s11041-024-01013-5

V. V. Mylnikov, E. A. Zakharychev, A. I. Pronin, M. V. Mylnikova, T. G. Shetulova

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引用次数: 0

摘要

研究了一种通过内部氧化获得的铝基试验性分散硬化复合材料的抗疲劳特性。疲劳试验是在对称循环条件下，通过对圆柱形旋转样品进行悬臂弯曲的 "软 "方案加载下进行的。通过直接光学显微镜、数码显微镜和扫描电子显微镜研究了材料在循环变形过程中的结构和变形特征。对复合材料的抗疲劳特性进行了少量分散研究。确定了疲劳裂纹的成核和扩展机理。对疲劳断裂面进行了分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Fatigue Resistance of Dispersion-Hardened Aluminum Alloy

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Fatigue Resistance of Dispersion-Hardened Aluminum Alloy

The fatigue resistance characteristics of an aluminum-based experimental dispersion-hardened composite material obtained by internal oxidation are investigated. Fatigue tests are carried out under loading by a “soft” scheme of cantilever bending of cylindrical rotating samples under symmetric-cycle conditions. The structural and deformation features of the behavior of the material during cyclic deformation are studied by optical direct, digital, and scanning electron microscopy. The fatigue resistance characteristics of the composite are scattered little. The mechanism of nucleation and propagation of fatigue cracks is determined. Analysis of a fatigue fracture surface is performed.

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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.