Abstract
The microstructure of CuZnMnAlSiNiCr complex alloyed brass was examined. The effect of various chromium content in the range from 0.00 to 0.33 wt.% on the composition and morphology of intermetallic compounds was established, and the amount of chromium-based intermetallic compounds was estimated. Microhardness of intermetallic compounds of various morphology was determined. The effect of chromium content on wear rate of brass samples was estimated. The range of chromium content at which samples wear rate is minimal was estimated.
Highlights
The automotive industry increases at a rapid rate, resulting in increased demand for various special-purpose materials
The purpose of this work is to study the effect of chromium content on the structure and wear rate of CuZnMnAlSiNiCr brass samples
Analysis of the microstructure of obtained ingots showed that the shape and size of intermetallic compounds in the alloy change significantly with increasing amount of chromium added to the melt
Summary
The automotive industry increases at a rapid rate, resulting in increased demand for various special-purpose materials. Such materials include complex alloyed brass, which is widely used in the automotive industry [1,2,3,4,5]. It should be noted that the required level of performance is ever-increasing with increasing requirements for reliability and service life of high-duty products. For this purpose, the effects of various alloying elements on brass properties have been researched [6,7]. There has been increasing interest in copper-based alloys alloyed with chromium [14]
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