Microstructure and mechanical properties of Ni-Fe-Cr-Al wrought alumina forming superalloy heat-treated at 600–1100 °C.
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| Title: | Microstructure and mechanical properties of Ni-Fe-Cr-Al wrought alumina forming superalloy heat-treated at 600–1100 °C. |
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| Authors: | Polkowska, Adelajda1 (AUTHOR) adelajda.polkowska@kit.lukasiewicz.gov.pl, Lech, Sebastian1,2,3 (AUTHOR) slech@agh.edu.pl, Bała, Piotr3,4 (AUTHOR), Polkowski, Wojciech1 (AUTHOR) |
| Source: | Materials Characterization. Jan2021, Vol. 171, pN.PAG-N.PAG. 1p. |
| Subjects: | Discontinuous precipitation, Mechanical behavior of materials, Heat resistant alloys, Heat treatment, Microstructure, Nickel alloys, Alumina composites |
| Abstract: | Haynes® HR-224® is a new wrought alumina-forming Ni–27.5Fe–20Cr–3.8Al alloy developed to be applied in aggressively oxidizing environments. Although the superior environmental resistance of Haynes® HR-224® has been already proved under various atmospheric conditions, very limited information is available on controlling its microstructure and mechanical properties through heat treatment processing. In this work, the effect of heat-treatment temperature on structural evolution and mechanical response of Haynes® HR-224® is systematically examined for the first time. The commercial sheet material in the solution annealed condition was subjected to 2 h annealing (aging) followed by water quenching at 600–1100 °C (with an interval of 100 °C). The SEM/EDS and TEM techniques were applied to examine a heat-treatment induced structural evolution of the material, while mechanical characteristics were evaluated in room temperature static tensile tests carried out by using non-standard miniaturized specimens. A prominent increase in room temperature tensile strength accompanied by a reduction of ductility was measured in samples heat-treated at 600–800 °C/2 h. Discontinuous precipitation (DP) of (γ + γ')/M 23 C 6 was recognized as the main structural process lying behind the observed mechanical behavior of the examined material. • The effect of aging at 600–1100 °C on structure and mechanical response of Ni alloy • SEM/EDS and TEM studies on a heat-treatment induced structural evolution. • Static tensile tests on miniaturized specimens • Discontinuous precipitation as the main process governing mechanical response. • Complex (γ + γ')/M 23 C 6 discontinuous precipitation product [ABSTRACT FROM AUTHOR] |
| Copyright of Materials Characterization is the property of Elsevier B.V. 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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 148366162 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Microstructure and mechanical properties of Ni-Fe-Cr-Al wrought alumina forming superalloy heat-treated at 600–1100 °C. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Polkowska%2C+Adelajda%22">Polkowska, Adelajda</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> adelajda.polkowska@kit.lukasiewicz.gov.pl</i><br /><searchLink fieldCode="AR" term="%22Lech%2C+Sebastian%22">Lech, Sebastian</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> slech@agh.edu.pl</i><br /><searchLink fieldCode="AR" term="%22Bała%2C+Piotr%22">Bała, Piotr</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Polkowski%2C+Wojciech%22">Polkowski, Wojciech</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Materials+Characterization%22">Materials Characterization</searchLink>. Jan2021, Vol. 171, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Discontinuous+precipitation%22">Discontinuous precipitation</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+resistant+alloys%22">Heat resistant alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+treatment%22">Heat treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink><br /><searchLink fieldCode="DE" term="%22Nickel+alloys%22">Nickel alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Alumina+composites%22">Alumina composites</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Haynes® HR-224® is a new wrought alumina-forming Ni–27.5Fe–20Cr–3.8Al alloy developed to be applied in aggressively oxidizing environments. Although the superior environmental resistance of Haynes® HR-224® has been already proved under various atmospheric conditions, very limited information is available on controlling its microstructure and mechanical properties through heat treatment processing. In this work, the effect of heat-treatment temperature on structural evolution and mechanical response of Haynes® HR-224® is systematically examined for the first time. The commercial sheet material in the solution annealed condition was subjected to 2 h annealing (aging) followed by water quenching at 600–1100 °C (with an interval of 100 °C). The SEM/EDS and TEM techniques were applied to examine a heat-treatment induced structural evolution of the material, while mechanical characteristics were evaluated in room temperature static tensile tests carried out by using non-standard miniaturized specimens. A prominent increase in room temperature tensile strength accompanied by a reduction of ductility was measured in samples heat-treated at 600–800 °C/2 h. Discontinuous precipitation (DP) of (γ + γ')/M 23 C 6 was recognized as the main structural process lying behind the observed mechanical behavior of the examined material. • The effect of aging at 600–1100 °C on structure and mechanical response of Ni alloy • SEM/EDS and TEM studies on a heat-treatment induced structural evolution. • Static tensile tests on miniaturized specimens • Discontinuous precipitation as the main process governing mechanical response. • Complex (γ + γ')/M 23 C 6 discontinuous precipitation product [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Materials Characterization is the property of Elsevier B.V. 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: 10.1016/j.matchar.2020.110737 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Discontinuous precipitation Type: general – SubjectFull: Mechanical behavior of materials Type: general – SubjectFull: Heat resistant alloys Type: general – SubjectFull: Heat treatment Type: general – SubjectFull: Microstructure Type: general – SubjectFull: Nickel alloys Type: general – SubjectFull: Alumina composites Type: general Titles: – TitleFull: Microstructure and mechanical properties of Ni-Fe-Cr-Al wrought alumina forming superalloy heat-treated at 600–1100 °C. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Polkowska, Adelajda – PersonEntity: Name: NameFull: Lech, Sebastian – PersonEntity: Name: NameFull: Bała, Piotr – PersonEntity: Name: NameFull: Polkowski, Wojciech IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2021 Type: published Y: 2021 Identifiers: – Type: issn-print Value: 10445803 Numbering: – Type: volume Value: 171 Titles: – TitleFull: Materials Characterization Type: main |
| ResultId | 1 |
