Study on the Micromechanical Properties and Damage Model of Granite under Hydrochemical Environments Based on Nanoindentation Tests

Study on the Micromechanical Properties and Damage Model of Granite under Hydrochemical Environments Based on Nanoindentation Tests | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Study on the Micromechanical Properties and Damage Model of Granite under Hydrochemical Environments Based on Nanoindentation Tests Man LEI, Haibin Xue, Fa-ning DANG, Weihua Ding This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9051202/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract In this study, granite specimens were immersed in chemical solutions with varying pH levels for different durations. Following the immersion, nanoindentation tests were conducted to measure the micromechanical properties and analyze the damage degradation of quartz, feldspar, and mica within the corroded granite. The study investigated the evolution of the mechanical properties of these minerals as a function of corrosion time under different pH conditions, and quantitatively analyzed the impact of chemical solutions on the damage variables of both elastic modulus and hardness for different minerals. Furthermore, Scanning Electron Microscopy (SEM) was employed to observe the mineral characteristics and surface morphology of the granite after corrosion. Damage evolution equations for elastic modulus and hardness were established as functions of pH value and time. These findings reveal the micromechanical mechanism of granite mechanical property degradation induced by chemical corrosion from a micro-perspective. Physical sciences/Engineering Physical sciences/Materials science Granite Nanoindentation Chemical corrosion Damage evolution Micromechanical mechanism Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-9051202","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":607260014,"identity":"65d5c579-aa2b-4040-9833-65720faa462d","order_by":0,"name":"Man LEI","email":"","orcid":"","institution":"Shaanxi Agriculture and Forestry Vocational and Technical University","correspondingAuthor":false,"prefix":"","firstName":"Man","middleName":"","lastName":"LEI","suffix":""},{"id":607260015,"identity":"09e477ba-d7f5-4d27-8ba5-d13f218888e0","order_by":1,"name":"Haibin Xue","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA3UlEQVRIiWNgGAWjYDACCR4QacPDxt984MCHH8RqOcCQJscncSzx4Mwe4rUcNpZjyDE+zMFGhA6D273HpD/8YU5sYzjz4TADD4M8v9gB/Fok55xLkzjYxpbYxty74XCBBYPhzNkJ+LXwS+SYSRxs4AHacnbD4Rk8DAkGtwloYQNpOfBHAqgl58FhHjYitIBtOcBmYMzGkMNAnBbJGXnJFmfbEuTYJI4ZAANZgrBfDG7kHrxR8ec/j3x/8+MPH37YyPNLE9ACBCwSSBwJnMqQAfMHopSNglEwCkbByAUAQnRHOZapqPkAAAAASUVORK5CYII=","orcid":"","institution":"Xi’an University of Technology","correspondingAuthor":true,"prefix":"","firstName":"Haibin","middleName":"","lastName":"Xue","suffix":""},{"id":607260016,"identity":"8ba67566-fae5-42f4-8355-1d5a32d323a5","order_by":2,"name":"Fa-ning DANG","email":"","orcid":"","institution":"Xi’an University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Fa-ning","middleName":"","lastName":"DANG","suffix":""},{"id":607260018,"identity":"a8c9e6e6-9cf6-4ed4-aa0a-a93b2a5179b1","order_by":3,"name":"Weihua Ding","email":"","orcid":"","institution":"Xi’an University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Weihua","middleName":"","lastName":"Ding","suffix":""}],"badges":[],"createdAt":"2026-03-06 13:39:13","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-9051202/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-9051202/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":106403003,"identity":"2dd95b9d-19f6-4b80-a666-27dfc87ddf57","added_by":"auto","created_at":"2026-04-08 09:13:21","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":2439146,"visible":true,"origin":"","legend":"","description":"","filename":"StudyontheMicromechanicalPropertiesandDamageModelofGraniteunderHydrochemicalEnvironmentsBasedonNanoindentationTests202633.pdf","url":"https://assets-eu.researchsquare.com/files/rs-9051202/v1_covered_616d919c-715b-44c1-9ce8-2ae6254fa773.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Study on the Micromechanical Properties and Damage Model of Granite under Hydrochemical Environments Based on Nanoindentation Tests","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Granite, Nanoindentation, Chemical corrosion, Damage evolution, Micromechanical mechanism","lastPublishedDoi":"10.21203/rs.3.rs-9051202/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-9051202/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn this study, granite specimens were immersed in chemical solutions with varying pH levels for different durations. Following the immersion, nanoindentation tests were conducted to measure the micromechanical properties and analyze the damage degradation of quartz, feldspar, and mica within the corroded granite. The study investigated the evolution of the mechanical properties of these minerals as a function of corrosion time under different pH conditions, and quantitatively analyzed the impact of chemical solutions on the damage variables of both elastic modulus and hardness for different minerals. Furthermore, Scanning Electron Microscopy (SEM) was employed to observe the mineral characteristics and surface morphology of the granite after corrosion. Damage evolution equations for elastic modulus and hardness were established as functions of pH value and time. 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