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

Ivannikov A., Fedorov V., Abramov A., Penyaz M., Bachurina D., Uhlig T., Suchkov A., Wagner G., Morokhov P., Sevryukov O.
Тип документаJournal Article
Дата публикации2021-12-01
Название журналаMetals
ИздательMultidisciplinary Digital Publishing Institute (MDPI)
КвартильQ1
ISSN20754701
  • Metals and Alloys
  • General Materials Science
Краткое описание
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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1. Ivannikov A. и др. Development of Rapidly-Quenched Al-Ge-Si Filler Alloys for the Joining of Stainless Steel AISI 304 and Aluminum Alloy AA6082 // Metals. 2021. Т. 11. № 12. С. 1926.
RIS |
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TY - JOUR

DO - 10.3390/met11121926

UR - http://dx.doi.org/10.3390/met11121926

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 - Fedorov, Vasilii

AU - Abramov, Anton

AU - Penyaz, Milena

AU - Bachurina, Diana

AU - Uhlig, Thomas

AU - Suchkov, Alexey

AU - Wagner, Guntram

AU - Morokhov, Pavel

AU - Sevryukov, Oleg

PY - 2021

DA - 2021/11/29

PB - MDPI AG

SP - 1926

IS - 12

VL - 11

SN - 2075-4701

ER -

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@article{Ivannikov_2021,

doi = {10.3390/met11121926},

url = {https://doi.org/10.3390%2Fmet11121926},

year = 2021,

month = {nov},

publisher = {{MDPI} {AG}},

volume = {11},

number = {12},

pages = {1926},

author = {Alexander Ivannikov and Vasilii Fedorov and Anton Abramov and Milena Penyaz and Diana Bachurina and Thomas Uhlig and Alexey Suchkov and Guntram Wagner and Pavel Morokhov and Oleg Sevryukov},

title = {Development of Rapidly-Quenched Al-Ge-Si Filler Alloys for the Joining of Stainless Steel {AISI} 304 and Aluminum Alloy {AA}6082},

journal = {Metals}

}

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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. Crossref, https://doi.org/10.3390/met11121926.