Micrographic Digital Image Correlation Coupled with Microlithography: Case Study of Strain Localization and Subsequent Cracking at an FIB Notch Tip in a Laminated Ti-6Al-4V Alloy.
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| Title: | Micrographic Digital Image Correlation Coupled with Microlithography: Case Study of Strain Localization and Subsequent Cracking at an FIB Notch Tip in a Laminated Ti-6Al-4V Alloy. |
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| Authors: | Koyama, M.1 koyama@mech.kyushu-u.ac.jp, Tanaka, Y.2, Tsuzaki, K.1 |
| Source: | Experimental Mechanics. Feb2018, Vol. 58 Issue 2, p381-386. 6p. |
| Subjects: | Titanium-aluminum-vanadium alloys, Micrographics, Laminated materials, Mechanical properties of metals, Microlithography, Strains & stresses (Mechanics) |
| Abstract: | This study presents a microlithography-based approach to increase the spatial resolution of strain mapping by micrographic digital image correlation. A micro-mesh with a lattice size of 500 nm was added on the surface of a Ti-6Al-4V alloy specimen with a coarse lath size of 1.1 μm. Although the micro-mesh pattern was not random, a combination of the laminated microstructure and the micro-mesh enabled sub-micrometer strain mapping through digital image correlation even for coarse lath larger than 1 μm. Specifically, the strain mapping technique used in this study was applied to characterize the strain component and distribution near an artificial sharp micro-stress concentration site introduced by a focused ion beam. The strain characterization under tensile deformation clarified that cracking occurred via shear strain localization at the micro-stress concentration site, indicating that accumulation of damage (such as vacancy or dislocation) plays an important role in the cracking mechanism of the Ti-6Al-4V alloy. [ABSTRACT FROM AUTHOR] |
| Copyright of Experimental Mechanics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 127707351 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Micrographic Digital Image Correlation Coupled with Microlithography: Case Study of Strain Localization and Subsequent Cracking at an FIB Notch Tip in a Laminated Ti-6Al-4V Alloy. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Koyama%2C+M%2E%22">Koyama, M.</searchLink><relatesTo>1</relatesTo><i> koyama@mech.kyushu-u.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Tanaka%2C+Y%2E%22">Tanaka, Y.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Tsuzaki%2C+K%2E%22">Tsuzaki, K.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Experimental+Mechanics%22">Experimental Mechanics</searchLink>. Feb2018, Vol. 58 Issue 2, p381-386. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Titanium-aluminum-vanadium+alloys%22">Titanium-aluminum-vanadium alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Micrographics%22">Micrographics</searchLink><br /><searchLink fieldCode="DE" term="%22Laminated+materials%22">Laminated materials</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+properties+of+metals%22">Mechanical properties of metals</searchLink><br /><searchLink fieldCode="DE" term="%22Microlithography%22">Microlithography</searchLink><br /><searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This study presents a microlithography-based approach to increase the spatial resolution of strain mapping by micrographic digital image correlation. A micro-mesh with a lattice size of 500 nm was added on the surface of a Ti-6Al-4V alloy specimen with a coarse lath size of 1.1 μm. Although the micro-mesh pattern was not random, a combination of the laminated microstructure and the micro-mesh enabled sub-micrometer strain mapping through digital image correlation even for coarse lath larger than 1 μm. Specifically, the strain mapping technique used in this study was applied to characterize the strain component and distribution near an artificial sharp micro-stress concentration site introduced by a focused ion beam. The strain characterization under tensile deformation clarified that cracking occurred via shear strain localization at the micro-stress concentration site, indicating that accumulation of damage (such as vacancy or dislocation) plays an important role in the cracking mechanism of the Ti-6Al-4V alloy. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Experimental Mechanics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s11340-017-0336-5 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 381 Subjects: – SubjectFull: Titanium-aluminum-vanadium alloys Type: general – SubjectFull: Micrographics Type: general – SubjectFull: Laminated materials Type: general – SubjectFull: Mechanical properties of metals Type: general – SubjectFull: Microlithography Type: general – SubjectFull: Strains & stresses (Mechanics) Type: general Titles: – TitleFull: Micrographic Digital Image Correlation Coupled with Microlithography: Case Study of Strain Localization and Subsequent Cracking at an FIB Notch Tip in a Laminated Ti-6Al-4V Alloy. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Koyama, M. – PersonEntity: Name: NameFull: Tanaka, Y. – PersonEntity: Name: NameFull: Tsuzaki, K. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 00144851 Numbering: – Type: volume Value: 58 – Type: issue Value: 2 Titles: – TitleFull: Experimental Mechanics Type: main |
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