Details
| Original language | English |
|---|---|
| Title of host publication | Light Metals Technology 2015 |
| Editors | Hilda K. Chikwanda, Silethelwe Chikosha |
| Pages | 206-211 |
| Number of pages | 6 |
| Publication status | Published - 1 Jan 2015 |
| Event | 7th International Light Metals Technology Conference, LMT 2015 - Port Elizabeth, South Africa Duration: 27 Jul 2015 → 29 Jul 2015 |
Publication series
| Name | Materials Science Forum |
|---|---|
| Volume | 828-829 |
| ISSN (Print) | 0255-5476 |
| ISSN (electronic) | 1662-9752 |
Abstract
Combining different materials allows designing lightweight structures with tailor-made properties at the macroscopic as well as at the microscopic scale. In this context co-extrusion by lateral angular co-extrusion process (LACE) offers a great potential for advanced products by joining different light alloys, such as titanium and aluminum alloys. While titanium alloys show particular high mechanical strength values and a good corrosion resistance, aluminum alloys feature a considerable high specific bending stiffness at low materials costs. Within the presented research study metallic compounds were manufactured by co-extrusion using a LACE process. Since the mechanical properties of metallic composites highly depend on the existence and formation of an intermetallic layer, the bonding zone of the compounds were investigated. Experiments were carried out at the example of the material combinations Al99.5 & Ti99.2 and AlSi1MgMn & Ti99.2, respectively. The results of co-extruded samples concerning the intermetallic layer that was formed during heat treatment were compared with those directly after the co-extrusion. The investigations were focused on the formation of the bonding zone after both co-extrusion and the subsequent heat treatment. The bonding zone was characterized by scanning electron microscopy as well as electron probe microanalyser. Finally, the bond strength of each compound variant was determined and evaluated.
Keywords
- Aluminum, Co-extrusion, Diffusion bonding, Heat treatment, Titanium
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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Light Metals Technology 2015. ed. / Hilda K. Chikwanda; Silethelwe Chikosha. 2015. p. 206-211 (Materials Science Forum; Vol. 828-829).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Heat treatment of titanium-aluminum-compounds made by co-extrusion of asymmetric compound profiles
AU - Striewe, B.
AU - Grittner, N.
AU - Von Hehl, A.
AU - Nürnberger, F.
N1 - Publisher Copyright: © (2015) Trans Tech Publications, Switzerland. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - Combining different materials allows designing lightweight structures with tailor-made properties at the macroscopic as well as at the microscopic scale. In this context co-extrusion by lateral angular co-extrusion process (LACE) offers a great potential for advanced products by joining different light alloys, such as titanium and aluminum alloys. While titanium alloys show particular high mechanical strength values and a good corrosion resistance, aluminum alloys feature a considerable high specific bending stiffness at low materials costs. Within the presented research study metallic compounds were manufactured by co-extrusion using a LACE process. Since the mechanical properties of metallic composites highly depend on the existence and formation of an intermetallic layer, the bonding zone of the compounds were investigated. Experiments were carried out at the example of the material combinations Al99.5 & Ti99.2 and AlSi1MgMn & Ti99.2, respectively. The results of co-extruded samples concerning the intermetallic layer that was formed during heat treatment were compared with those directly after the co-extrusion. The investigations were focused on the formation of the bonding zone after both co-extrusion and the subsequent heat treatment. The bonding zone was characterized by scanning electron microscopy as well as electron probe microanalyser. Finally, the bond strength of each compound variant was determined and evaluated.
AB - Combining different materials allows designing lightweight structures with tailor-made properties at the macroscopic as well as at the microscopic scale. In this context co-extrusion by lateral angular co-extrusion process (LACE) offers a great potential for advanced products by joining different light alloys, such as titanium and aluminum alloys. While titanium alloys show particular high mechanical strength values and a good corrosion resistance, aluminum alloys feature a considerable high specific bending stiffness at low materials costs. Within the presented research study metallic compounds were manufactured by co-extrusion using a LACE process. Since the mechanical properties of metallic composites highly depend on the existence and formation of an intermetallic layer, the bonding zone of the compounds were investigated. Experiments were carried out at the example of the material combinations Al99.5 & Ti99.2 and AlSi1MgMn & Ti99.2, respectively. The results of co-extruded samples concerning the intermetallic layer that was formed during heat treatment were compared with those directly after the co-extrusion. The investigations were focused on the formation of the bonding zone after both co-extrusion and the subsequent heat treatment. The bonding zone was characterized by scanning electron microscopy as well as electron probe microanalyser. Finally, the bond strength of each compound variant was determined and evaluated.
KW - Aluminum
KW - Co-extrusion
KW - Diffusion bonding
KW - Heat treatment
KW - Titanium
UR - http://www.scopus.com/inward/record.url?scp=84954525526&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/msf.828-829.206
DO - 10.4028/www.scientific.net/msf.828-829.206
M3 - Conference contribution
AN - SCOPUS:84954525526
SN - 9783038355625
T3 - Materials Science Forum
SP - 206
EP - 211
BT - Light Metals Technology 2015
A2 - Chikwanda, Hilda K.
A2 - Chikosha, Silethelwe
T2 - 7th International Light Metals Technology Conference, LMT 2015
Y2 - 27 July 2015 through 29 July 2015
ER -