Dec 14 2012
Topics Covered
Introduction
Chemical Composition
Applications
Introduction
Master alloys are semi-finished products that control oxygen in an alloy and stabilize metals that usually oxidize in the atmosphere. These alloys are used to obtain a specific chemical specification by changing the liquid metal’s composition and also used to determine a metal’s microstructure during solidification and casting.
Master alloys are used more frequently than pure alloys because they are more economical. Under lower temperatures master alloys dissolve faster, thus saving production time and energy.
Copper-based master alloys also include copper-zirconium, copper-iron, copper-boron and copper-manganese. In comparison with pure metals copper-based master alloys have better dissolving capacity.
The following datasheet provides an overview of copper-arsenic master alloy.
Chemical Composition
The chemical composition of copper-arsenic master alloy is outlined in the following table.
|
Element |
Content (%) |
|
Copper, Cu |
79-81 |
|
Arsenic, As |
19-21 |
Applications
Copper-arsenic master alloys are used as dezincification inhibitor in brass and improving corrosion resistance of copper-aluminum alloys and mechanical properties of low alloyed copper alloys.