Alexander I. Ikeuba, Chigoziri N. Njoku, Okpo O. Ekerenam, Demian I. Njoku, Inime I. Udoh, Enobong F. Daniel, Paul C. Uzoma, Ini-Ibehe N. Etim and Bright O. Okonkwo
{"title":"综述铝合金中重要金属间化合物的电化学和电化学腐蚀行为。","authors":"Alexander I. Ikeuba, Chigoziri N. Njoku, Okpo O. Ekerenam, Demian I. Njoku, Inime I. Udoh, Enobong F. Daniel, Paul C. Uzoma, Ini-Ibehe N. Etim and Bright O. Okonkwo","doi":"10.1039/D4RA06070A","DOIUrl":null,"url":null,"abstract":"<p >Aluminum alloys are widely sought for different applications due to their high strength-to-weight ratio. Most often this increased strength of the alloy is achieved by specific alloying elements and heat treatment processes which give rise to second phases intermetallic particles (IMPs) also known as intermetallic compounds (IMCs). These second phases play a dominant role in the corrosion susceptibility of aluminum alloys. This review provides a systematic survey of the electrochemical, and galvanic corrosion behavior of IMPs in the context of aluminum alloys. A discussion of the electrochemical/galvanic corrosion behavior of selected/important intermetallic compounds that are commonly found in aluminum alloys such as the Q-phase (Al<small><sub>4</sub></small>Cu<small><sub>2</sub></small>Mg<small><sub>7</sub></small>Si<small><sub>8</sub></small>), π-phase (Al<small><sub>8</sub></small>Mg<small><sub>3</sub></small>FeSi<small><sub>6</sub></small>), θ-phase (Al<small><sub>2</sub></small>Cu), S-phase (Al<small><sub>2</sub></small>CuMg), the β-phase (Mg<small><sub>2</sub></small>Si), β-phase (Al<small><sub>3</sub></small>Mg<small><sub>2</sub></small>), δ (Al<small><sub>3</sub></small>Li), η-phase (MgZn<small><sub>2</sub></small>), and β-phase (Al<small><sub>3</sub></small>Fe) is provided. In addition, the limitations in the electrochemical characterization of intermetallic compounds, the research gap, and prospects are also provided in addition to the phenomenon of galvanic polarity reversal and self-dissolution of IMPs.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":null,"pages":null},"PeriodicalIF":3.9000,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11462131/pdf/","citationCount":"0","resultStr":"{\"title\":\"A review of the electrochemical and galvanic corrosion behavior of important intermetallic compounds in the context of aluminum alloys†\",\"authors\":\"Alexander I. Ikeuba, Chigoziri N. Njoku, Okpo O. Ekerenam, Demian I. Njoku, Inime I. Udoh, Enobong F. Daniel, Paul C. Uzoma, Ini-Ibehe N. Etim and Bright O. Okonkwo\",\"doi\":\"10.1039/D4RA06070A\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Aluminum alloys are widely sought for different applications due to their high strength-to-weight ratio. Most often this increased strength of the alloy is achieved by specific alloying elements and heat treatment processes which give rise to second phases intermetallic particles (IMPs) also known as intermetallic compounds (IMCs). These second phases play a dominant role in the corrosion susceptibility of aluminum alloys. This review provides a systematic survey of the electrochemical, and galvanic corrosion behavior of IMPs in the context of aluminum alloys. A discussion of the electrochemical/galvanic corrosion behavior of selected/important intermetallic compounds that are commonly found in aluminum alloys such as the Q-phase (Al<small><sub>4</sub></small>Cu<small><sub>2</sub></small>Mg<small><sub>7</sub></small>Si<small><sub>8</sub></small>), π-phase (Al<small><sub>8</sub></small>Mg<small><sub>3</sub></small>FeSi<small><sub>6</sub></small>), θ-phase (Al<small><sub>2</sub></small>Cu), S-phase (Al<small><sub>2</sub></small>CuMg), the β-phase (Mg<small><sub>2</sub></small>Si), β-phase (Al<small><sub>3</sub></small>Mg<small><sub>2</sub></small>), δ (Al<small><sub>3</sub></small>Li), η-phase (MgZn<small><sub>2</sub></small>), and β-phase (Al<small><sub>3</sub></small>Fe) is provided. In addition, the limitations in the electrochemical characterization of intermetallic compounds, the research gap, and prospects are also provided in addition to the phenomenon of galvanic polarity reversal and self-dissolution of IMPs.</p>\",\"PeriodicalId\":102,\"journal\":{\"name\":\"RSC Advances\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.9000,\"publicationDate\":\"2024-10-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11462131/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"RSC Advances\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2024/ra/d4ra06070a\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"RSC Advances","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/ra/d4ra06070a","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
A review of the electrochemical and galvanic corrosion behavior of important intermetallic compounds in the context of aluminum alloys†
Aluminum alloys are widely sought for different applications due to their high strength-to-weight ratio. Most often this increased strength of the alloy is achieved by specific alloying elements and heat treatment processes which give rise to second phases intermetallic particles (IMPs) also known as intermetallic compounds (IMCs). These second phases play a dominant role in the corrosion susceptibility of aluminum alloys. This review provides a systematic survey of the electrochemical, and galvanic corrosion behavior of IMPs in the context of aluminum alloys. A discussion of the electrochemical/galvanic corrosion behavior of selected/important intermetallic compounds that are commonly found in aluminum alloys such as the Q-phase (Al4Cu2Mg7Si8), π-phase (Al8Mg3FeSi6), θ-phase (Al2Cu), S-phase (Al2CuMg), the β-phase (Mg2Si), β-phase (Al3Mg2), δ (Al3Li), η-phase (MgZn2), and β-phase (Al3Fe) is provided. In addition, the limitations in the electrochemical characterization of intermetallic compounds, the research gap, and prospects are also provided in addition to the phenomenon of galvanic polarity reversal and self-dissolution of IMPs.
期刊介绍:
An international, peer-reviewed journal covering all of the chemical sciences, including multidisciplinary and emerging areas. RSC Advances is a gold open access journal allowing researchers free access to research articles, and offering an affordable open access publishing option for authors around the world.