Prethodno priopćenje

Investigation of the effect of combined thermomechanical processing on the brass microstructure evolution and the microhardness change

A. Naizabekov ; Rudny Industrial Institute, Rudny, Kazakhstan
S. Lezhnev ; Rudny Industrial Institute, Rudny, Kazakhstan
I. Volokitina ; Karaganda Industrial University, Temirtau, Kazakhstan
E. Panin ; Karaganda Industrial University, Temirtau, Kazakhstan
A. Tolkushkin ; Rudny Industrial Institute, Rudny, Kazakhstan
S. Belsky ; Belarusian State Technological University, Minsk, Belarus
M. Pishchov ; Belarusian State Technological University, Minsk, Belarus

Sažetak

The article investigates the effect of combined thermomechanical processing, including pre-heat treatment and radial-shear rolling on the brass microstructure evolution and the microhardness change. The microstructure analysis of heat-treated samples according to various modes showed that the most optimal heat treatment before radialshear rolling for L63 brass is annealing at a temperature of 500 °C. As a result of combined thermomechanical processing, a gradient structure was obtained, so in the resulting rods with a diameter of 16 mm in the surface layer, a structure with an average grain size of 9 μm was obtained. In rods with a diameter of 12 mm, a fine–grained, equalgrained structure of 3 μm was obtained in the surface layer.

Ključne riječi

brass; radial-shear rolling; heat treatment; microstructure; microhardness

Hrčak ID:

312347

URI

https://hrcak.srce.hr/312347

Datum izdavanja:

1.4.2024.

Posjeta: 180 *