Izvorni znanstveni članak

Effect of asymmetric rolling with cone-shaped rolls on microstructure of low-carbon steel

A. D. Mekhtiev ; Karaganda State Technical University, Karaganda, Kazakhstan
E. M. Azbanbayev ; Karaganda State Technical University, Karaganda, Kazakhstan
A. Z. Isagulov ; Karaganda State Technical University, Karaganda, Kazakhstan
A. R. Karipbayeva ; Karaganda State Industrial University, Temirtau, Kazakhstan
Sv. S. Kvon ; Karaganda State Technical University, Karaganda, Kazakhstan
N. B. Zakariya ; Karaganda State Technical University, Karaganda, Kazakhstan
N. Z. Yermaganbetov ; Karaganda State Technical University, Karaganda, Kazakhstan

Sažetak

Effect of asymmetric rolling with cone-shaped rolls (ARCSR) on the evolution of microstructure of low-carbon steel was investigated. Steel containing 0,15 % C (wt. %) billet with initial grain size of 60 μm was deformed up to thickness of 5 mm with diameters ratio of 1,5, as well as in cylindrical rolls. Rolling was conducted at three different temperatures: 900 °C, 1 000 °C and 1 100 °C. Final thickness is obtained through four passes of ARCSR with total reduction of 61,7 %. It has been shown during ARCSR at 900 °C grain size is relatively smaller (0,092 μm – surface layer and 0,112 μm – middle layer).

Ključne riječi

rolling; steel; microstructure; properties; asymmetric

Hrčak ID:

138271

URI

https://hrcak.srce.hr/138271

Datum izdavanja:

1.10.2015.

Posjeta: 1.533 *