Characterization of the Interface between Aluminum and Iron in Co-Extruded Semi-Finished Products
Within the framework of the Collaborative Research Center 1153, we investigated novel process chains for the production of bulk components with different metals as joining partners. In the present study, the co-extrusion of coaxially reinforced hollow profiles was employed to manufacture semi-finish...
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| Format: | Article |
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MDPI AG
2022-02-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/5/1692 |
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| author | Susanne Elisabeth Thürer Kai Peters Torsten Heidenblut Norman Heimes Julius Peddinghaus Florian Nürnberger Bernd-Arno Behrens Hans Jürgen Maier Christian Klose |
| author_facet | Susanne Elisabeth Thürer Kai Peters Torsten Heidenblut Norman Heimes Julius Peddinghaus Florian Nürnberger Bernd-Arno Behrens Hans Jürgen Maier Christian Klose |
| author_sort | Susanne Elisabeth Thürer |
| collection | DOAJ |
| description | Within the framework of the Collaborative Research Center 1153, we investigated novel process chains for the production of bulk components with different metals as joining partners. In the present study, the co-extrusion of coaxially reinforced hollow profiles was employed to manufacture semi-finished products for a subsequent die-forging process, which was then used for the manufacture of hybrid bearing bushings. The hybrid hollow profiles, made of the aluminum alloy EN AW-6082 paired with either the case-hardening steel 20MnCr5, the stainless steel X5CrNi18-10, or the rolling bearing steel 100Cr6, were produced by Lateral Angular Co-Extrusion. Push-out tests on hybrid hollow sections over the entire sample cross-section showed shear strengths of 44 MPa ± 8 MPa (100Cr6) up to 63 MPa ± 5 MPa (X5CrNi18-10). In particular, the influence of force and form closure on the joint zone could be determined using specimen segments tested in shear compression. Locally, shear strengths of up to 131 MPa (X5CrNi18-10) were demonstrated in the shear compression test. From these samples, lamellae for microstructural analysis were prepared with a Focused Ion Beam. Detailed analyses showed that for all material combinations, a material bond in the form of an ultra-thin intermetallic phase seam with a thickness of up to 50 nm could be established. |
| first_indexed | 2024-03-09T20:32:58Z |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T20:32:58Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-4d8f18c10e3241baa7bf5d66b2f0020a2023-11-23T23:17:22ZengMDPI AGMaterials1996-19442022-02-01155169210.3390/ma15051692Characterization of the Interface between Aluminum and Iron in Co-Extruded Semi-Finished ProductsSusanne Elisabeth Thürer0Kai Peters1Torsten Heidenblut2Norman Heimes3Julius Peddinghaus4Florian Nürnberger5Bernd-Arno Behrens6Hans Jürgen Maier7Christian Klose8Institut für Werkstoffkunde (Materials Science), An der Universität 2, 30823 Garbsen, GermanyInstitut für Werkstoffkunde (Materials Science), An der Universität 2, 30823 Garbsen, GermanyInstitut für Werkstoffkunde (Materials Science), An der Universität 2, 30823 Garbsen, GermanyInstitut für Umformtechnik und Umformmaschinen (Forming Technology and Machines), An der Universität 2, 30823 Garbsen, GermanyInstitut für Umformtechnik und Umformmaschinen (Forming Technology and Machines), An der Universität 2, 30823 Garbsen, GermanyInstitut für Werkstoffkunde (Materials Science), An der Universität 2, 30823 Garbsen, GermanyInstitut für Umformtechnik und Umformmaschinen (Forming Technology and Machines), An der Universität 2, 30823 Garbsen, GermanyInstitut für Werkstoffkunde (Materials Science), An der Universität 2, 30823 Garbsen, GermanyInstitut für Werkstoffkunde (Materials Science), An der Universität 2, 30823 Garbsen, GermanyWithin the framework of the Collaborative Research Center 1153, we investigated novel process chains for the production of bulk components with different metals as joining partners. In the present study, the co-extrusion of coaxially reinforced hollow profiles was employed to manufacture semi-finished products for a subsequent die-forging process, which was then used for the manufacture of hybrid bearing bushings. The hybrid hollow profiles, made of the aluminum alloy EN AW-6082 paired with either the case-hardening steel 20MnCr5, the stainless steel X5CrNi18-10, or the rolling bearing steel 100Cr6, were produced by Lateral Angular Co-Extrusion. Push-out tests on hybrid hollow sections over the entire sample cross-section showed shear strengths of 44 MPa ± 8 MPa (100Cr6) up to 63 MPa ± 5 MPa (X5CrNi18-10). In particular, the influence of force and form closure on the joint zone could be determined using specimen segments tested in shear compression. Locally, shear strengths of up to 131 MPa (X5CrNi18-10) were demonstrated in the shear compression test. From these samples, lamellae for microstructural analysis were prepared with a Focused Ion Beam. Detailed analyses showed that for all material combinations, a material bond in the form of an ultra-thin intermetallic phase seam with a thickness of up to 50 nm could be established.https://www.mdpi.com/1996-1944/15/5/1692intermetallic phase seamco-extrusionaluminum–steelmechanical properties |
| spellingShingle | Susanne Elisabeth Thürer Kai Peters Torsten Heidenblut Norman Heimes Julius Peddinghaus Florian Nürnberger Bernd-Arno Behrens Hans Jürgen Maier Christian Klose Characterization of the Interface between Aluminum and Iron in Co-Extruded Semi-Finished Products Materials intermetallic phase seam co-extrusion aluminum–steel mechanical properties |
| title | Characterization of the Interface between Aluminum and Iron in Co-Extruded Semi-Finished Products |
| title_full | Characterization of the Interface between Aluminum and Iron in Co-Extruded Semi-Finished Products |
| title_fullStr | Characterization of the Interface between Aluminum and Iron in Co-Extruded Semi-Finished Products |
| title_full_unstemmed | Characterization of the Interface between Aluminum and Iron in Co-Extruded Semi-Finished Products |
| title_short | Characterization of the Interface between Aluminum and Iron in Co-Extruded Semi-Finished Products |
| title_sort | characterization of the interface between aluminum and iron in co extruded semi finished products |
| topic | intermetallic phase seam co-extrusion aluminum–steel mechanical properties |
| url | https://www.mdpi.com/1996-1944/15/5/1692 |
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