Application of four-dimensional impedance analysis to elucidating corrosion mechanisms in additively manufactured metals and alloys

IF 6.5 2区化学 Q1 CHEMISTRY, PHYSICAL

Current Opinion in Electrochemistry Pub Date : 2025-12-01 Epub Date: 2025-10-22 DOI:10.1016/j.coelec.2025.101773

Yoshinao Hoshi , Dasom Kim , Naoki Takata

{"title":"Application of four-dimensional impedance analysis to elucidating corrosion mechanisms in additively manufactured metals and alloys","authors":"Yoshinao Hoshi , Dasom Kim , Naoki Takata","doi":"10.1016/j.coelec.2025.101773","DOIUrl":null,"url":null,"abstract":"<div><div>This review describes a four-dimensional (4D) impedance analysis approach for analyzing the oxide film formation process that accompanies the dissolution of metals and alloys. In this analysis, the measured impedance was plotted on a three-dimensional (3D) complex impedance plot composed of real, imaginary, and time axes. Since the impedance plots of the same frequency in each spectrum are smoothly connected using a spline under tension function, the instantaneous impedance can be determined at an arbitrary time on the 3D complex impedance plot. In this review, the application of 4D impedance analysis to an additively manufactured aluminum alloy produced by a laser powder bed fusion process is introduced as a representative additive manufacturing technology. Additionally, the corrosion resistance mechanisms are discussed based on the impedance variation, which is attributed to dissolution and oxide film formation to generate a unique alloy structure.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"54 ","pages":"Article 101773"},"PeriodicalIF":6.5000,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Opinion in Electrochemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2451910325001322","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/10/22 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

This review describes a four-dimensional (4D) impedance analysis approach for analyzing the oxide film formation process that accompanies the dissolution of metals and alloys. In this analysis, the measured impedance was plotted on a three-dimensional (3D) complex impedance plot composed of real, imaginary, and time axes. Since the impedance plots of the same frequency in each spectrum are smoothly connected using a spline under tension function, the instantaneous impedance can be determined at an arbitrary time on the 3D complex impedance plot. In this review, the application of 4D impedance analysis to an additively manufactured aluminum alloy produced by a laser powder bed fusion process is introduced as a representative additive manufacturing technology. Additionally, the corrosion resistance mechanisms are discussed based on the impedance variation, which is attributed to dissolution and oxide film formation to generate a unique alloy structure.

查看原文本刊更多论文

应用四维阻抗分析阐明增材制造金属和合金的腐蚀机理

本文介绍了一种用于分析金属和合金溶解过程中氧化膜形成过程的四维阻抗分析方法。在这个分析中，测量的阻抗被绘制在三维（3D）复杂阻抗图上，该阻抗图由实轴、虚轴和时间轴组成。由于每个频谱中相同频率的阻抗图在张力函数下使用样条平滑连接，因此可以在三维复阻抗图上任意时刻确定瞬时阻抗。本文介绍了一种具有代表性的增材制造技术——激光粉末床熔融增材制造铝合金的4D阻抗分析应用。此外，还讨论了基于阻抗变化的耐腐蚀机理，这是由于溶解和氧化膜的形成而产生的独特的合金结构。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Current Opinion in Electrochemistry Chemistry-Analytical Chemistry

CiteScore

14.00

自引率

5.90%

发文量

272

审稿时长

73 days

期刊介绍： The development of the Current Opinion journals stemmed from the acknowledgment of the growing challenge for specialists to stay abreast of the expanding volume of information within their field. In Current Opinion in Electrochemistry, they help the reader by providing in a systematic manner: 1.The views of experts on current advances in electrochemistry in a clear and readable form. 2.Evaluations of the most interesting papers, annotated by experts, from the great wealth of original publications. In the realm of electrochemistry, the subject is divided into 12 themed sections, with each section undergoing an annual review cycle: • Bioelectrochemistry • Electrocatalysis • Electrochemical Materials and Engineering • Energy Storage: Batteries and Supercapacitors • Energy Transformation • Environmental Electrochemistry • Fundamental & Theoretical Electrochemistry • Innovative Methods in Electrochemistry • Organic & Molecular Electrochemistry • Physical & Nano-Electrochemistry • Sensors & Bio-sensors •