Numerical modeling of the development of intermetallic layers between aluminium and steel during co-extrusion

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Original languageEnglish
Title of host publicationProceedings of the 22nd International ESAFORM Conference on Material Forming
Subtitle of host publicationESAFORM 2019
EditorsPedro Arrazola, Eneko Saenz de Argandona, Nagore Otegi, Joseba Mendiguren, Mikel Saez de Buruaga, Aitor Madariaga, Lander Galdos
PublisherAmerican Institute of Physics Inc.
Number of pages7
ISBN (electronic)9780735418479
Publication statusPublished - 2 Jul 2019
Event22nd International ESAFORM Conference on Material Forming, ESAFORM 2019 - Vitoria-Gasteiz, Spain
Duration: 8 May 201910 May 2019

Publication series

NameAIP Conference Proceedings
Number1
Volume2113
ISSN (Print)0094-243X
ISSN (electronic)1551-7616

Abstract

Undergoing the Tailored Forming process chain, coaxial aluminium-steel profiles joined by co-extrusion are formed into hybrid bearing bushings by die forging. During the joining of aluminium and steel, intermetallic phases may develop. As these phases are very hard and brittle, it is important to be able to predict the width of the resulting intermetallic layer because it is likely to reduce the strength of the compound for the subsequent forging step. In the scope of this paper, a possibility for numerical calculation of the resulting phase thickness during the co-extrusion of aluminium and steel, by means of Lateral Angular Co-Extrusion (LACE), is presented. In the first step, an analogy test on a forming dilatometer was developed for the experimental investigation of the intermetallic phase formation. The width of the intermetallic phase seam was determined by means of scanning electron microscopy using an image processing tool. Based on the experimental results, a calculation instruction was defined to describe the intermetallic phase thickness as a function of temperature and contact time. The function was implemented in a commercial finite element (FE) software by means of a user-defined subroutine and validated on the basis of experimental data.

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Cite this

Numerical modeling of the development of intermetallic layers between aluminium and steel during co-extrusion. / Behrens, Bernd-Arno; Klose, Christian; Thürer, Susanne Elisabeth et al.
Proceedings of the 22nd International ESAFORM Conference on Material Forming: ESAFORM 2019. ed. / Pedro Arrazola; Eneko Saenz de Argandona; Nagore Otegi; Joseba Mendiguren; Mikel Saez de Buruaga; Aitor Madariaga; Lander Galdos. American Institute of Physics Inc., 2019. 040029 (AIP Conference Proceedings; Vol. 2113, No. 1).

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Behrens, B-A, Klose, C, Thürer, SE, Heimes, N & Uhe, J 2019, Numerical modeling of the development of intermetallic layers between aluminium and steel during co-extrusion. in P Arrazola, E Saenz de Argandona, N Otegi, J Mendiguren, M Saez de Buruaga, A Madariaga & L Galdos (eds), Proceedings of the 22nd International ESAFORM Conference on Material Forming: ESAFORM 2019., 040029, AIP Conference Proceedings, no. 1, vol. 2113, American Institute of Physics Inc., 22nd International ESAFORM Conference on Material Forming, ESAFORM 2019, Vitoria-Gasteiz, Spain, 8 May 2019. https://doi.org/10.1063/1.5112563
Behrens, B.-A., Klose, C., Thürer, S. E., Heimes, N., & Uhe, J. (2019). Numerical modeling of the development of intermetallic layers between aluminium and steel during co-extrusion. In P. Arrazola, E. Saenz de Argandona, N. Otegi, J. Mendiguren, M. Saez de Buruaga, A. Madariaga, & L. Galdos (Eds.), Proceedings of the 22nd International ESAFORM Conference on Material Forming: ESAFORM 2019 Article 040029 (AIP Conference Proceedings; Vol. 2113, No. 1). American Institute of Physics Inc.. https://doi.org/10.1063/1.5112563
Behrens BA, Klose C, Thürer SE, Heimes N, Uhe J. Numerical modeling of the development of intermetallic layers between aluminium and steel during co-extrusion. In Arrazola P, Saenz de Argandona E, Otegi N, Mendiguren J, Saez de Buruaga M, Madariaga A, Galdos L, editors, Proceedings of the 22nd International ESAFORM Conference on Material Forming: ESAFORM 2019. American Institute of Physics Inc. 2019. 040029. (AIP Conference Proceedings; 1). doi: 10.1063/1.5112563
Behrens, Bernd-Arno ; Klose, Christian ; Thürer, Susanne Elisabeth et al. / Numerical modeling of the development of intermetallic layers between aluminium and steel during co-extrusion. Proceedings of the 22nd International ESAFORM Conference on Material Forming: ESAFORM 2019. editor / Pedro Arrazola ; Eneko Saenz de Argandona ; Nagore Otegi ; Joseba Mendiguren ; Mikel Saez de Buruaga ; Aitor Madariaga ; Lander Galdos. American Institute of Physics Inc., 2019. (AIP Conference Proceedings; 1).
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title = "Numerical modeling of the development of intermetallic layers between aluminium and steel during co-extrusion",
abstract = "Undergoing the Tailored Forming process chain, coaxial aluminium-steel profiles joined by co-extrusion are formed into hybrid bearing bushings by die forging. During the joining of aluminium and steel, intermetallic phases may develop. As these phases are very hard and brittle, it is important to be able to predict the width of the resulting intermetallic layer because it is likely to reduce the strength of the compound for the subsequent forging step. In the scope of this paper, a possibility for numerical calculation of the resulting phase thickness during the co-extrusion of aluminium and steel, by means of Lateral Angular Co-Extrusion (LACE), is presented. In the first step, an analogy test on a forming dilatometer was developed for the experimental investigation of the intermetallic phase formation. The width of the intermetallic phase seam was determined by means of scanning electron microscopy using an image processing tool. Based on the experimental results, a calculation instruction was defined to describe the intermetallic phase thickness as a function of temperature and contact time. The function was implemented in a commercial finite element (FE) software by means of a user-defined subroutine and validated on the basis of experimental data.",
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AU - Behrens, Bernd-Arno

AU - Klose, Christian

AU - Thürer, Susanne Elisabeth

AU - Heimes, Norman

AU - Uhe, Johanna

N1 - Funding information: The results presented in this paper were obtained within the Collaborative Research Centre 1153 “Process chain to produce hybrid high performance components by Tailored Forming” in the subproject A1, funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - 252662854. The authors would like to thank the German Research Foundation for the financial support of this project.

PY - 2019/7/2

Y1 - 2019/7/2

N2 - Undergoing the Tailored Forming process chain, coaxial aluminium-steel profiles joined by co-extrusion are formed into hybrid bearing bushings by die forging. During the joining of aluminium and steel, intermetallic phases may develop. As these phases are very hard and brittle, it is important to be able to predict the width of the resulting intermetallic layer because it is likely to reduce the strength of the compound for the subsequent forging step. In the scope of this paper, a possibility for numerical calculation of the resulting phase thickness during the co-extrusion of aluminium and steel, by means of Lateral Angular Co-Extrusion (LACE), is presented. In the first step, an analogy test on a forming dilatometer was developed for the experimental investigation of the intermetallic phase formation. The width of the intermetallic phase seam was determined by means of scanning electron microscopy using an image processing tool. Based on the experimental results, a calculation instruction was defined to describe the intermetallic phase thickness as a function of temperature and contact time. The function was implemented in a commercial finite element (FE) software by means of a user-defined subroutine and validated on the basis of experimental data.

AB - Undergoing the Tailored Forming process chain, coaxial aluminium-steel profiles joined by co-extrusion are formed into hybrid bearing bushings by die forging. During the joining of aluminium and steel, intermetallic phases may develop. As these phases are very hard and brittle, it is important to be able to predict the width of the resulting intermetallic layer because it is likely to reduce the strength of the compound for the subsequent forging step. In the scope of this paper, a possibility for numerical calculation of the resulting phase thickness during the co-extrusion of aluminium and steel, by means of Lateral Angular Co-Extrusion (LACE), is presented. In the first step, an analogy test on a forming dilatometer was developed for the experimental investigation of the intermetallic phase formation. The width of the intermetallic phase seam was determined by means of scanning electron microscopy using an image processing tool. Based on the experimental results, a calculation instruction was defined to describe the intermetallic phase thickness as a function of temperature and contact time. The function was implemented in a commercial finite element (FE) software by means of a user-defined subroutine and validated on the basis of experimental data.

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ER -

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