Microstructure and Mechanical Properties of AA 6082/AISI 304 Joints Brazed Using Al-Ge-Si Filler Metal
Abstract
:1. Introduction
2. Materials and Experimental Procedure
2.1. Materials
2.2. Experimental Procedure
3. Results
3.1. Microstructure of the AA 6082/AISI 304 Brazed Joints
3.2. Nanoindentation Results
3.3. Tensile Shear Strength of the AA 6082/AISI 304 Brazed Joints
3.4. Fatigue Behavior of the AA 6082/AISI 304 Brazed Joints
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Alloy | Element Content (wt.%) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Al | Fe | Ge | Cr | Ni | Si | Mn | Mg | C | Other | |
AA 6082 | bal. | 0.5 | - | 0.25 | - | 0.8 | 1 | 1 | - | 0.4 |
AISI 304 | - | bal. | - | 18 | 8 | 0.4 | 1.4 | - | 0.08 | 0.3 |
Al-Ge-Si | bal. | - | 40 | - | - | 3.4 | - | - | - | - |
Brazing Process | Brazing Temperature [°C] | Holding Time [s] | |
---|---|---|---|
Induction brazing | 530 | 0 | 10 |
Vacuum furnace brazing | 530 | 600 | 1800 |
Measurement Points | Element Content (at.%) | Microstructural Constituents | ||||
---|---|---|---|---|---|---|
Al | Ge | Si | Fe | Cr | ||
Braze Metal | ||||||
1 | 97 | 3 | - | - | - | (Al) |
2 | - | 45 | 55 | - | - | (SiGe) |
3 | 70 | - | 11 | 18 | 1 | Al7Fe2Si |
4 | 5 | 95 | - | - | - | (Ge) |
Reaction Zone | ||||||
5 | - | 41 | 59 | - | - | (SiGe) |
6 | 65 | - | 9 | 18 | 5 | Al7Fe2(Si,Cr) |
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Fedorov, V.; Uhlig, T.; Wagner, G. Microstructure and Mechanical Properties of AA 6082/AISI 304 Joints Brazed Using Al-Ge-Si Filler Metal. Metals 2023, 13, 1574. https://doi.org/10.3390/met13091574
Fedorov V, Uhlig T, Wagner G. Microstructure and Mechanical Properties of AA 6082/AISI 304 Joints Brazed Using Al-Ge-Si Filler Metal. Metals. 2023; 13(9):1574. https://doi.org/10.3390/met13091574
Chicago/Turabian StyleFedorov, Vasilii, Thomas Uhlig, and Guntram Wagner. 2023. "Microstructure and Mechanical Properties of AA 6082/AISI 304 Joints Brazed Using Al-Ge-Si Filler Metal" Metals 13, no. 9: 1574. https://doi.org/10.3390/met13091574