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

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

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