Detection of microstructural material changes due to hydrogen pressure atmosphere under cyclic load using eddy current testing.
Saved in:
| Title: | Detection of microstructural material changes due to hydrogen pressure atmosphere under cyclic load using eddy current testing. |
|---|---|
| Authors: | Weiss, M. K.-B.1 (AUTHOR) weiss@iw.uni-hannover.de, Schumacher, J.1 (AUTHOR), Barton, S.1 (AUTHOR), Maier, H. J.1 (AUTHOR) |
| Source: | Nondestructive Testing & Evaluation. Jul2026, Vol. 41 Issue 7, p4050-4065. 16p. |
| Subjects: | Eddy current testing, Nondestructive testing, Fatigue testing machines, Hydrogen embrittlement of metals, Deterioration of materials, Microcracks, Cyclic loads |
| Abstract: | The absorption of hydrogen into the metal lattice can cause a deterioration in the mechanical properties, leading to brittle fracture and sudden failure of the material. To investigate these effects, this paper presents fatigue tests on a hollow specimen geometry. The specimens are internally exposed to a pressurized hydrogen atmosphere during the fatigue tests. This led to a reduction in service life of up to 22 % compared to the reference group exposed to argon. Material fatigue is noticeable in microstructural changes before crack growth is initiated. These changes shall be detected using non-destructive testing (NDT) methods. For this purpose, an eddy current (EC) testing method is used to characterize the material, as it allows both electrical and magnetic changes to be recorded. A clear separation between the argon and hydrogen specimens was achieved at a test frequency of 400 kHz. However, the assessment of the state of fatigue, namely the probability of crack formation and crack propagation, is a challenging task. Nevertheless, this issue can be addressed through the implementation of an NDT methodology. EC testing is suitable for detecting changes in the microstructure at an early stage and could therefore develop into an option for fatigue monitoring. [ABSTRACT FROM AUTHOR] |
| Copyright of Nondestructive Testing & Evaluation is the property of Taylor & Francis Ltd 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.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| FullText | Links: – Type: pdflink Text: Availability: 1 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 194726155 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Detection of microstructural material changes due to hydrogen pressure atmosphere under cyclic load using eddy current testing. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Weiss%2C+M%2E+K%2E-B%2E%22">Weiss, M. K.-B.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> weiss@iw.uni-hannover.de</i><br /><searchLink fieldCode="AR" term="%22Schumacher%2C+J%2E%22">Schumacher, J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Barton%2C+S%2E%22">Barton, S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Maier%2C+H%2E+J%2E%22">Maier, H. J.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Nondestructive+Testing+%26+Evaluation%22">Nondestructive Testing & Evaluation</searchLink>. Jul2026, Vol. 41 Issue 7, p4050-4065. 16p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Eddy+current+testing%22">Eddy current testing</searchLink><br /><searchLink fieldCode="DE" term="%22Nondestructive+testing%22">Nondestructive testing</searchLink><br /><searchLink fieldCode="DE" term="%22Fatigue+testing+machines%22">Fatigue testing machines</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+embrittlement+of+metals%22">Hydrogen embrittlement of metals</searchLink><br /><searchLink fieldCode="DE" term="%22Deterioration+of+materials%22">Deterioration of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Microcracks%22">Microcracks</searchLink><br /><searchLink fieldCode="DE" term="%22Cyclic+loads%22">Cyclic loads</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The absorption of hydrogen into the metal lattice can cause a deterioration in the mechanical properties, leading to brittle fracture and sudden failure of the material. To investigate these effects, this paper presents fatigue tests on a hollow specimen geometry. The specimens are internally exposed to a pressurized hydrogen atmosphere during the fatigue tests. This led to a reduction in service life of up to 22 % compared to the reference group exposed to argon. Material fatigue is noticeable in microstructural changes before crack growth is initiated. These changes shall be detected using non-destructive testing (NDT) methods. For this purpose, an eddy current (EC) testing method is used to characterize the material, as it allows both electrical and magnetic changes to be recorded. A clear separation between the argon and hydrogen specimens was achieved at a test frequency of 400 kHz. However, the assessment of the state of fatigue, namely the probability of crack formation and crack propagation, is a challenging task. Nevertheless, this issue can be addressed through the implementation of an NDT methodology. EC testing is suitable for detecting changes in the microstructure at an early stage and could therefore develop into an option for fatigue monitoring. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Nondestructive Testing & Evaluation is the property of Taylor & Francis Ltd 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.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=194726155 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/10589759.2025.2483372 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 4050 Subjects: – SubjectFull: Eddy current testing Type: general – SubjectFull: Nondestructive testing Type: general – SubjectFull: Fatigue testing machines Type: general – SubjectFull: Hydrogen embrittlement of metals Type: general – SubjectFull: Deterioration of materials Type: general – SubjectFull: Microcracks Type: general – SubjectFull: Cyclic loads Type: general Titles: – TitleFull: Detection of microstructural material changes due to hydrogen pressure atmosphere under cyclic load using eddy current testing. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Weiss, M. K.-B. – PersonEntity: Name: NameFull: Schumacher, J. – PersonEntity: Name: NameFull: Barton, S. – PersonEntity: Name: NameFull: Maier, H. J. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 10589759 Numbering: – Type: volume Value: 41 – Type: issue Value: 7 Titles: – TitleFull: Nondestructive Testing & Evaluation Type: main |
| ResultId | 1 |
