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Metals, volume 11, issue 12, pages 1926

Development of rapidly-quenched al-ge-si filler alloys for the joining of stainless steel aisi 304 and aluminum alloy aa6082

Abramov Anton 1
Penyaz Milena 1
Uhlig Thomas 2
Suchkov Alexey 1
Morokhov Pavel 1
2
 
Group of Composites and Material Compounds, Institute of Materials Science and Engineering, Chemnitz University of Technology, 09111 Chemnitz, Germany
Publication typeJournal Article
Publication date2021-11-29
Journal: Metals
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor2.9
ISSN20754701
Metals and Alloys
General Materials Science
Abstract

Aluminum alloys based on the Al-Ge-Si system with a germanium content of up to 40 wt.%, promising for the brazing of aluminum alloy AA6082 with the stainless steel AISI 304, were studied. The temperature characteristics and microstructural and mechanical properties of the filler alloys were systematically investigated. Differential scanning calorimetry showed that with an increase in the germanium content from 28.0 to 40.0 wt.%, the liquidus temperature of the filler alloys decreased from 514.8 to 474.3 °C. X-ray diffraction analysis and electron microscopy data showed that the foil of the filler alloys reveals a homogeneous structure. The ingots of the alloys contain two eutectics, the first of which consists of a solid solution of (Al, Ge) with a solid solution of (Ge, Si), and the second consists of a solid solution of (Al, Ge) with a solid solution based on (Ge). When the content of germanium increases from 28.0 to 40.0 wt.%, a separation of the faceted solid solution particles (Ge, Si) and an increase in their number could be observed. Nanohardness measurements showed that the (Ge, Si) and (Ge) solid solutions had similar nanohardness, with values of 11.6 and 10.2 GPa, respectively. Simultaneously, the Al solid solution and the intermetallic Al7Ge2Fe phase exhibited significantly lower nanohardness values of 0.7 and 6.7 GPa, respectively. Brinell hardness measurements showed that the ingots of the filler alloys were sufficiently ductile and had a hardness comparable to that of AA6082, which is used for brazing with AISI 304 stainless steel. The obtained results for the studied ingots and the rapidly quenched foils can be used to predict the forming structure of the seam after brazing and adjusted for diffusion processes occurring between the brazed materials and the studied filler alloys.

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Metals
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Multidisciplinary Digital Publishing Institute (MDPI)
Multidisciplinary Digital Publishing Institute (MDPI), 3, 100%
Multidisciplinary Digital Publishing Institute (MDPI)
3 publications, 100%
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Ivannikov A. et al. Development of rapidly-quenched al-ge-si filler alloys for the joining of stainless steel aisi 304 and aluminum alloy aa6082 // Metals. 2021. Vol. 11. No. 12. p. 1926.
GOST all authors (up to 50) Copy
Ivannikov A., Fedorov V., Abramov A., Penyaz M., Bachurina D., Uhlig T., Suchkov A., Wagner G., Morokhov P., Sevryukov O. Development of rapidly-quenched al-ge-si filler alloys for the joining of stainless steel aisi 304 and aluminum alloy aa6082 // Metals. 2021. Vol. 11. No. 12. p. 1926.
RIS |
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TY - JOUR
DO - 10.3390/met11121926
UR - https://doi.org/10.3390%2Fmet11121926
TI - Development of rapidly-quenched al-ge-si filler alloys for the joining of stainless steel aisi 304 and aluminum alloy aa6082
T2 - Metals
AU - Ivannikov, Alexander
AU - Abramov, Anton
AU - Bachurina, Diana
AU - Uhlig, Thomas
AU - Suchkov, Alexey
AU - Morokhov, Pavel
AU - Sevryukov, Oleg
AU - Penyaz, Milena
AU - Fedorov, Vasilii
AU - Wagner, Guntram
PY - 2021
DA - 2021/11/29 00:00:00
PB - Multidisciplinary Digital Publishing Institute (MDPI)
SP - 1926
IS - 12
VL - 11
SN - 2075-4701
ER -
BibTex |
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@article{2021_Ivannikov,
author = {Alexander Ivannikov and Anton Abramov and Diana Bachurina and Thomas Uhlig and Alexey Suchkov and Pavel Morokhov and Oleg Sevryukov and Milena Penyaz and Vasilii Fedorov and Guntram Wagner},
title = {Development of rapidly-quenched al-ge-si filler alloys for the joining of stainless steel aisi 304 and aluminum alloy aa6082},
journal = {Metals},
year = {2021},
volume = {11},
publisher = {Multidisciplinary Digital Publishing Institute (MDPI)},
month = {nov},
url = {https://doi.org/10.3390%2Fmet11121926},
number = {12},
pages = {1926},
doi = {10.3390/met11121926}
}
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Ivannikov, Alexander, et al. “Development of rapidly-quenched al-ge-si filler alloys for the joining of stainless steel aisi 304 and aluminum alloy aa6082.” Metals, vol. 11, no. 12, Nov. 2021, p. 1926. https://doi.org/10.3390%2Fmet11121926.
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