Homogenization of the interfacial bonding of compound-cast AA7075/6060 bilayer billets by co-extrusion

Hui Chen; Danai Giannopoulou; Thomas  Greß; Jonas Isakovic; Tim  Mittler; Wolfram  Volk; Noomane Ben Khalifa

doi:10.1007/s12289-021-01626-8

Homogenization of the interfacial bonding of compound-cast AA7075/6060 bilayer billets by co-extrusion

Hui Chen
, Danai Giannopoulou
, Thomas Greß
, Jonas Isakovic
, Tim Mittler
, Wolfram Volk
, Noomane Ben Khalifa

Professorship of Manufacturing – Innovative Manufacturing

Research output: Journal contributions › Journal articles › Research › peer-review

5 Citations (Scopus)

Abstract

A process chain of compound casting and co-extrusion of AA7075/6060 bilayer billets is introduced to manufacture hybrid components with strength in the core and good corrosion-resistance in the shell. Using optimized compound casting parameter, metallurgical bonding between the shell AA6060 and the core AA7075 can be achieved through remelting and recrystallization of the substrate AA7075. The locally unequal thermal conditions at the interface induces partially weak bonding. The bonding strength in greater distance from the casting gate is generally lower. Hot extrusion is applied to improve the interfacial bonding. Comparisons of the microstructure and the shear strength between as-cast billet and extrudate present the homogenization of the interfacial bonding through the process chain.

Original language	English
Journal	International Journal of Material Forming
Volume	14
Issue number	5
Pages (from-to)	1109-1119
Number of pages	11
ISSN	1960-6206
DOIs	https://doi.org/10.1007/s12289-021-01626-8
Publication status	Published - 09.2021

Bibliographical note

Open Access funding enabled and organized by Projekt DEAL. This study was funded by the German Research Foundation (DFG) [grant number BE5196/11 − 1].

Research areas and keywords

Engineering
compound casting
co-extrusion
bond strength

ASJC Scopus Subject Areas

Materials Science(all)

Access to Document

10.1007/s12289-021-01626-8Licence: CC BY

DownloadFinal published version, 4.07 MBLicence: CC BY

1 Finished

Determination and control of bonding properties in aluminum composites in the combination of compound casting and forming
Ben Khalifa, N. (Project manager, academic), Volk, W. (Project manager, academic) & Chen, H. (Project staff)
German Research Foundation
15.06.18 → 31.07.20
Project: Research

5 Citations
3 Journal articles

Production of aluminum AA7075/6060 compounds by die casting and hot extrusion
Greß, T., Mittler, T., Chen, H., Stahl, J., Schmid, S., Ben Khalifa, N. & Volk, W., 01.06.2020, In: Journal of Materials Processing Technology. 280, 12 p., 116594.
Research output: Journal contributions › Journal articles › Research › peer-review
21 Citations (Scopus)
Mechanical characterization of as-cast AA7075/6060 and CuSn6/Cu99.5 compounds using an experimental and numerical push-out test
Greß, T., Stahl, J., Mittler, T., Spano, L., Chen, H., Ben Khalifa, N. & Volk, W., 28.03.2019, In: Materials Science & Engineering A. 751, p. 214-225 12 p.
Research output: Journal contributions › Journal articles › Research › peer-review
14 Citations (Scopus)
Thermal Analysis and Production of As-Cast Al 7075/6060 Bilayer Billets
Greß, T., Mittler, T., Schmid, S., Chen, H., Ben Khalifa, N. & Volk, W., 01.10.2019, In: International Journal of Metalcasting. 13, 4, p. 817-829 13 p.
Research output: Journal contributions › Journal articles › Research › peer-review
11 Citations (Scopus)

Cite this

@article{419e6b8ea08e4ac18e4424412291e6b8,

title = "Homogenization of the interfacial bonding of compound-cast AA7075/6060 bilayer billets by co-extrusion",

abstract = "A process chain of compound casting and co-extrusion of AA7075/6060 bilayer billets is introduced to manufacture hybrid components with strength in the core and good corrosion-resistance in the shell. Using optimized compound casting parameter, metallurgical bonding between the shell AA6060 and the core AA7075 can be achieved through remelting and recrystallization of the substrate AA7075. The locally unequal thermal conditions at the interface induces partially weak bonding. The bonding strength in greater distance from the casting gate is generally lower. Hot extrusion is applied to improve the interfacial bonding. Comparisons of the microstructure and the shear strength between as-cast billet and extrudate present the homogenization of the interfacial bonding through the process chain.",

keywords = "Engineering, compound casting, co-extrusion, bond strength",

author = "Hui Chen and Danai Giannopoulou and Thomas Gre{\ss} and Jonas Isakovic and Tim Mittler and Wolfram Volk and \{Ben Khalifa\}, Noomane",

note = "Open Access funding enabled and organized by Projekt DEAL. This study was funded by the German Research Foundation (DFG) [grant number BE5196/11 − 1]. ",

year = "2021",

month = sep,

doi = "10.1007/s12289-021-01626-8",

language = "English",

volume = "14",

pages = "1109--1119",

journal = "International Journal of Material Forming",

issn = "1960-6206",

publisher = "Springer Paris",

number = "5",

}

TY - JOUR

T1 - Homogenization of the interfacial bonding of compound-cast AA7075/6060 bilayer billets by co-extrusion

AU - Chen, Hui

AU - Giannopoulou, Danai

AU - Greß, Thomas

AU - Isakovic, Jonas

AU - Mittler, Tim

AU - Volk, Wolfram

AU - Ben Khalifa, Noomane

N1 - Open Access funding enabled and organized by Projekt DEAL. This study was funded by the German Research Foundation (DFG) [grant number BE5196/11 − 1].

PY - 2021/9

Y1 - 2021/9

N2 - A process chain of compound casting and co-extrusion of AA7075/6060 bilayer billets is introduced to manufacture hybrid components with strength in the core and good corrosion-resistance in the shell. Using optimized compound casting parameter, metallurgical bonding between the shell AA6060 and the core AA7075 can be achieved through remelting and recrystallization of the substrate AA7075. The locally unequal thermal conditions at the interface induces partially weak bonding. The bonding strength in greater distance from the casting gate is generally lower. Hot extrusion is applied to improve the interfacial bonding. Comparisons of the microstructure and the shear strength between as-cast billet and extrudate present the homogenization of the interfacial bonding through the process chain.

AB - A process chain of compound casting and co-extrusion of AA7075/6060 bilayer billets is introduced to manufacture hybrid components with strength in the core and good corrosion-resistance in the shell. Using optimized compound casting parameter, metallurgical bonding between the shell AA6060 and the core AA7075 can be achieved through remelting and recrystallization of the substrate AA7075. The locally unequal thermal conditions at the interface induces partially weak bonding. The bonding strength in greater distance from the casting gate is generally lower. Hot extrusion is applied to improve the interfacial bonding. Comparisons of the microstructure and the shear strength between as-cast billet and extrudate present the homogenization of the interfacial bonding through the process chain.

KW - Engineering

KW - compound casting

KW - co-extrusion

KW - bond strength

UR - https://www.scopus.com/pages/publications/85106015020

U2 - 10.1007/s12289-021-01626-8

DO - 10.1007/s12289-021-01626-8

M3 - Journal articles

SN - 1960-6206

VL - 14

SP - 1109

EP - 1119

JO - International Journal of Material Forming

JF - International Journal of Material Forming

IS - 5

ER -

Homogenization of the interfacial bonding of compound-cast AA7075/6060 bilayer billets by co-extrusion

Abstract

Bibliographical note

Research areas and keywords

ASJC Scopus Subject Areas

Access to Document

Fingerprint

Projects

Determination and control of bonding properties in aluminum composites in the combination of compound casting and forming

Research output

Production of aluminum AA7075/6060 compounds by die casting and hot extrusion

Mechanical characterization of as-cast AA7075/6060 and CuSn6/Cu99.5 compounds using an experimental and numerical push-out test

Thermal Analysis and Production of As-Cast Al 7075/6060 Bilayer Billets

Cite this