Brazing of Different Metal Alloys with Highly-Silver Flux Addition and Microstructure Investigation

Year 2023, Volume: 7 Issue: 1, 25 - 29, 01.04.2023

Bünyamin Çiçek

https://doi.org/10.30939/ijastech..1239678

Abstract

In this study, it was investigated that two different metal alloys can be soldered with the help of industrial flux. Thus, the soldered state of two different metals used in areas such as defense, automotive, and battery was examined. A low-carbon steel alloy and a GBZ20 grade bronze material were used for brazing. An industrial flux was used as an intermediate material. Flux contains high levels of silver (Ag), as well as Cu, Zn, Pb, and Ni elements. A design is prepared between the two materials during soldering. With the flame heating method, the sample temperature was increased to approximately 800°C. After the experiment, rapid cooling was done in water. Inspection of the solder intermediate zone was examined with the help of a scanning electron microscope (SEM). Chemical analyzes of the materials were followed. Thus, two different metals are combined with a flux-assisted soldering process.

Keywords

Brazing, steel, bronze, flux, microstructure

References

• Mandal S, Rao V, Ray AK. Characterization of the brazed joint interface between Al 2 O 3 and (Ag-Cu-Ti). Jour-nal of Materials Science. 2004;39(16-17):5587-90.
• Shabtay Y, Ainali M, Lea A. New brazing processes using anneal-resistant copper and brass alloys. Materials & De-sign. 2004;25(1):83-9.
• Klimpel A, Górka J, Czupryński A, Kik T, Nowak B. Technology of braze welding absorber tubes to copper foil in solar collectors by the GTA method. Welding International. 2009;23(2):91-9.
• Okuroğullari Y, Çavuşoğlu O, Tutar M, Aydin H. Investigation of the Mechanical Properties of St52 and S460MC Steels by Gas Welding. International Journal of Automotive Science and Technology. 2022;6(3):221-5.
• Roulin M, Luster J, Karadeniz G, Mortensen A. Strength and structure of furnace-brazed joints between aluminum and stainless steel. Welding Journal-New York. 1999;78:151.
• Roberts P. Industrial brazing practice. Roberts P, editor. Boca Raton: CRC Press; 2003.
• Achitei DC, Vizureanu P, Minciuna MG, Sandu AV, Buzaianu A, Dana DI. Obtaining of New Flux Coated Elec-trodes used for Welding-brazing Operations. Materiale Plastice. 2015;52(2):165-7.
• Ahmad I, Nazeri MFM, Salleh NA, Kheawhom S, Erer AM, Kurt A, et al. Selective electrochemical etching of the Sn-3Ag-0.5 Cu/0.07 wt% graphene nanoparticle composite solder. Arabian Journal of Chemistry. 2021;14(10):103392.
• Gültekin E, Yahşi M. Investigation of lattice structures for the battery pack protection. International Journal of Auto-motive Science and Technology. 2021;5(4):331-8.
• Şafak G, İrizalp S, Köroğlu BK. Ag içeren dolgu met-alleri ile elde edilen bakır/pirinç lehim bağlantısının mikroyapısı ve mekanik performansı üzerine çalışma. Dokuz Eylül Üniver-sitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi. 2022;24(72):1033-47.
• Bridges D, Ma C, Palmer Z, Wang S, Feng Z, Hu A. Laser brazing of Inconel® 718 using Ag and Cu-Ag nanopastes as brazing materials. Journal of Materials Processing Technolo-gy. 2017;249:313-24.
• Long F, He P, Sekulic DP. Research and development of powder brazing filler metals for diamond tools: A review. Metals. 2018;8(5):315.
• Tomków J, Haras J. Types of surface impurities ver-sus the quality of brazed joints. Biuletyn Instytutu Spawalnic-twa w Gliwicach. 2018;62(4):53-8.
• Hong WS, Kim MS, Oh C. Low-pressure silver sinter-ing of automobile power modules with a silicon-carbide device and an active-metal-brazed substrate. Journal of Electronic Ma-terials. 2020;49(1):188-95.
• Koltsov A, Bailly N, Cretteur L. Wetting and laser brazing of Zn-coated steel products by Cu–Si filler metal. Jour-nal of Materials Science. 2010;45(8):2118-25.
• Niu G, Wang D, Yang Z, Wang Y. Microstructure and mechanical properties of Al2O3 ceramic and TiAl alloy joints brazed with Ag–Cu–Ti filler metal. Ceramics International. 2016;42(6):6924-34.
• Erer AM. Effect of bismuth addition on the corrosion dynamics of Sn–3Ag–0.5 Cu solder alloy in Hydrochloric Acid Solution. International Journal of Innovative Engineering Ap-plications. 2021;5(1):40-4.
• Sehirli E, Erer AM, Turan MK. A new approach for measuring the wetting angles of lead-free solder alloys from digital images. Engineering Science and Technology, an Inter-national Journal. 2022;36:101279.
• Madeni J, Liu S. Effect of thermal aging on the inter-facial reactions of tin-based solder alloys and copper substrates and kinetics of formation and growth of intermetallic com-pounds. Soldagem & Inspeção. 2011;16:86-95.
• Wang Z, Shen J, Hu S, Wang T, Bu X. Investigation of welding crack in laser welding-brazing welded TC4/6061 and TC4/2024 dissimilar butt joints. Journal of Manufacturing Processes. 2020;60:54-60.
• Weil KS, Paxton DM, editors. Development of an oxidation resistant ceramic‐to‐metal braze for use in YSZ‐based electrochemical devices. 26th Annual Conference on Compo-sites, Advanced Ceramics, Materials, and Structures: A: Ceram-ic Engineering and Science Proceedings; 2002: Wiley Online Library.
• Kahraman N. Bonding Titanium To Cooper By Fur-nace Brazing Method Using Silver Interlayer And Investigation Of Their Mechanical Properties. Gazi University Journal of Science. 2003;16(3):611-8.
• Lazic V, Arsic D, Djordjevic M, Nikolic R, Hadzima B. Electrical resistance spot brazing of two different alloys. In: Platko MAAaP, editor. Advances and Trends in Engineering Sciences and Technologies. London, UK: CRC Press; 2016.