SILVER MATRIX COMPOSITE REINFORCED BY ALUMINIUM-SILVER INTERMETALLIC PHASES.
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| Title: | SILVER MATRIX COMPOSITE REINFORCED BY ALUMINIUM-SILVER INTERMETALLIC PHASES. |
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| Authors: | WLOCH, G.1 gwloch@agh.edu.pl, SKRZEKUT, T.1, SOBOTA, J.2, WOZNICKI, A.1, BŁAŻ, L.1 |
| Source: | Archives of Metallurgy & Materials. Mar2017, Vol. 62 Issue 1, p427-434. 8p. |
| Subjects: | Aluminum, Cathode rays, Fracture toughness, Electromagnetic waves, Vacuum tubes |
| Abstract: | Silver and aluminum powders (82 mass % Ag and 18 mass % Al) were mixed and hot extruded at 673 K with extrusion ratio ʎ = 25. Performed X-ray diffraction analysis of as extruded rod revealed the development of Ag3Al and Ag2Al-type intermetallic phases. Structural observations and both chemical and diffraction analysis of structural components confirmed the growth of mentioned phases in the vicinity of elementary Al and Ag granules. No pores or voids were observed in the material. Mechanical properties of the composite, UTS = 490MPa, YS = 440 MPa, HV2 = 136, were relatively high if compared to commercial Ag and Cu products. Hot compression tests pointed to the good hot workability of the composite at deformation temperature range 473 K - 773 K. The differential scanning calorimetry tests were performed in order to estimate structural processes during heating of Ag/ Al composite that lead to thermodynamically stable liquid state. It was found that characteristic temperature of three endothermic peaks correspond to (1) peritectoid transformationμ-Ag3Al → ζ-Ag2Al + (Ag), (2) the eutectic melting ζ-Ag2Al + (Al) → L, (3) melting of the ζ-Ag2Al phase. The Vickers hardness of the samples annealed at 673 K, for the time range up to 6900 minutes, was also determined. It was concluded that mutual diffusion of elements between Ag and Al granules and the growth ofμAg3Al and ζ-Ag2Al grains during annealing at 673 K result in a slight hardening of the composite. [ABSTRACT FROM AUTHOR] |
| Copyright of Archives of Metallurgy & Materials is the property of Polish Academy of Sciences 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 |
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| Items | – Name: Title Label: Title Group: Ti Data: SILVER MATRIX COMPOSITE REINFORCED BY ALUMINIUM-SILVER INTERMETALLIC PHASES. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22WLOCH%2C+G%2E%22">WLOCH, G.</searchLink><relatesTo>1</relatesTo><i> gwloch@agh.edu.pl</i><br /><searchLink fieldCode="AR" term="%22SKRZEKUT%2C+T%2E%22">SKRZEKUT, T.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22SOBOTA%2C+J%2E%22">SOBOTA, J.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22WOZNICKI%2C+A%2E%22">WOZNICKI, A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22BŁAŻ%2C+L%2E%22">BŁAŻ, L.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Archives+of+Metallurgy+%26+Materials%22">Archives of Metallurgy & Materials</searchLink>. Mar2017, Vol. 62 Issue 1, p427-434. 8p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Aluminum%22">Aluminum</searchLink><br /><searchLink fieldCode="DE" term="%22Cathode+rays%22">Cathode rays</searchLink><br /><searchLink fieldCode="DE" term="%22Fracture+toughness%22">Fracture toughness</searchLink><br /><searchLink fieldCode="DE" term="%22Electromagnetic+waves%22">Electromagnetic waves</searchLink><br /><searchLink fieldCode="DE" term="%22Vacuum+tubes%22">Vacuum tubes</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Silver and aluminum powders (82 mass % Ag and 18 mass % Al) were mixed and hot extruded at 673 K with extrusion ratio ʎ = 25. Performed X-ray diffraction analysis of as extruded rod revealed the development of Ag3Al and Ag2Al-type intermetallic phases. Structural observations and both chemical and diffraction analysis of structural components confirmed the growth of mentioned phases in the vicinity of elementary Al and Ag granules. No pores or voids were observed in the material. Mechanical properties of the composite, UTS = 490MPa, YS = 440 MPa, HV2 = 136, were relatively high if compared to commercial Ag and Cu products. Hot compression tests pointed to the good hot workability of the composite at deformation temperature range 473 K - 773 K. The differential scanning calorimetry tests were performed in order to estimate structural processes during heating of Ag/ Al composite that lead to thermodynamically stable liquid state. It was found that characteristic temperature of three endothermic peaks correspond to (1) peritectoid transformationμ-Ag3Al → ζ-Ag2Al + (Ag), (2) the eutectic melting ζ-Ag2Al + (Al) → L, (3) melting of the ζ-Ag2Al phase. The Vickers hardness of the samples annealed at 673 K, for the time range up to 6900 minutes, was also determined. It was concluded that mutual diffusion of elements between Ag and Al granules and the growth ofμAg3Al and ζ-Ag2Al grains during annealing at 673 K result in a slight hardening of the composite. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Archives of Metallurgy & Materials is the property of Polish Academy of Sciences 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: 10.1515/amm-2017-0066 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 427 Subjects: – SubjectFull: Aluminum Type: general – SubjectFull: Cathode rays Type: general – SubjectFull: Fracture toughness Type: general – SubjectFull: Electromagnetic waves Type: general – SubjectFull: Vacuum tubes Type: general Titles: – TitleFull: SILVER MATRIX COMPOSITE REINFORCED BY ALUMINIUM-SILVER INTERMETALLIC PHASES. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: WLOCH, G. – PersonEntity: Name: NameFull: SKRZEKUT, T. – PersonEntity: Name: NameFull: SOBOTA, J. – PersonEntity: Name: NameFull: WOZNICKI, A. – PersonEntity: Name: NameFull: BŁAŻ, L. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2017 Type: published Y: 2017 Identifiers: – Type: issn-print Value: 17333490 Numbering: – Type: volume Value: 62 – Type: issue Value: 1 Titles: – TitleFull: Archives of Metallurgy & Materials Type: main |
| ResultId | 1 |
