Effect of ultrasonic-assisted abrasive peening on near-surface characteristics and electrochemical behaviour of Al-6061 alloy

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2024-11-10 DOI:10.1016/j.corsci.2024.112563

S V V N Siva Rao , Darothi Bairagi , Sumantra Mandal , N.D. Chakladar , Soumitra Paul

引用次数: 0

Abstract

This study investigates the influence of ultrasonic-assisted abrasive peening (UAP) on the microstructural evolution and corrosion characteristics of Al-6061 alloy. A 3 min peened sample demonstrated a 50 % reduction in grain size and a 14-fold increase in residual stress compared to its unpeened state. The corrosion rate for the 3 min peening also decreased to 9.42 × 10⁻³ mm/year, compared to 89.4 × 10⁻³ mm/year for the unpeened alloy specimen. Peening beyond 3 min was observed to be susceptible to pitting. Hence, the UAP is found to be an effective method of improving the corrosion resistance of Al-6061.

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超声波辅助喷丸强化对 Al-6061 合金近表面特性和电化学行为的影响

本研究探讨了超声辅助喷丸强化（UAP）对 Al-6061 合金微观结构演变和腐蚀特性的影响。与未强化状态相比，强化 3 分钟的样品晶粒尺寸减少了 50%，残余应力增加了 14 倍。3 分钟强化后的腐蚀速率也降至 9.42 × 10-3 毫米/年，而未强化合金试样的腐蚀速率为 89.4 × 10-3 毫米/年。据观察，超过 3 分钟的强化容易产生点蚀。因此，UAP 是提高 Al-6061 耐腐蚀性的有效方法。

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

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.