Damage characteristics of Cu−Cr−Zr alloy rail of electromagnetic railgun after simulated launch

IF 4.7 1区材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING

Transactions of Nonferrous Metals Society of China Pub Date : 2024-08-01 DOI:10.1016/S1003-6326(24)66562-3

Ke-chang SHEN , Qing-tao GONG , Zhong-yu SUN , Hong-tu SUN , Bin-jie MA , Wei-min WANG

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引用次数: 0

Abstract

The damage characteristics of different speed sections of Cu−Cr−Zr alloy rail after simulated launch were studied. The microstructure, morphologies and properties of samples were investigated by using XRD, XPS, EBSD, SEM, hardness test, electrochemical test and DSC techniques. It was found that deposition layers were formed on the surfaces of the simulated launch samples. The thickness and surface roughness of these deposition layers increased with increasing the heat effect, suggesting a launch speed dependent damage degree of the arc ablation. The hardness variation of samples is attributed to the effects of the deposition layer and deformation hardening. The surface deposition layer affects corrosion resistance and crystalline characteristics, leading to changes in subsequent service performances. Additionally, the surface texture and plastic deformation ability of the samples are related to the recrystallization degree and deformation grain amount.

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电磁轨道炮 Cu-Cr-Zr 合金轨道模拟发射后的损伤特征

研究了模拟发射后 Cu-Cr-Zr 合金轨道不同速度截面的损伤特征。采用 XRD、XPS、EBSD、SEM、硬度测试、电化学测试和 DSC 技术研究了样品的微观结构、形态和性能。研究发现，在模拟发射样品的表面形成了沉积层。这些沉积层的厚度和表面粗糙度随着热效应的增加而增加，表明电弧烧蚀的损坏程度与发射速度有关。样品硬度的变化归因于沉积层和变形硬化的影响。表面沉积层会影响耐腐蚀性和结晶特性，从而导致后续使用性能的变化。此外，样品的表面纹理和塑性变形能力与再结晶程度和变形晶粒数量有关。

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

Transactions of Nonferrous Metals Society of China 工程技术-冶金工程

CiteScore

7.40

自引率

17.80%

发文量

8456

审稿时长

3.6 months

期刊介绍： The Transactions of Nonferrous Metals Society of China (Trans. Nonferrous Met. Soc. China), founded in 1991 and sponsored by The Nonferrous Metals Society of China, is published monthly now and mainly contains reports of original research which reflect the new progresses in the field of nonferrous metals science and technology, including mineral processing, extraction metallurgy, metallic materials and heat treatments, metal working, physical metallurgy, powder metallurgy, with the emphasis on fundamental science. It is the unique preeminent publication in English for scientists, engineers, under/post-graduates on the field of nonferrous metals industry. This journal is covered by many famous abstract/index systems and databases such as SCI Expanded, Ei Compendex Plus, INSPEC, CA, METADEX, AJ and JICST.