Metallurgy, Vol. 61 No. 1, 2022.
Original scientific paper
Modifier effect on mechanical properties of low-chromium cast iron
A. A. Аkberdin
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
A. Z. Issagulov
; Karaganda Technical University, Karaganda, Kazakhstan
S. S. Kvon
; Karaganda Technical University, Karaganda, Kazakhstan
Ye. P. Chsherbakova
; Karaganda Technical University, Karaganda, Kazakhstan
D. R. Аubakirov
; Karaganda Technical University, Karaganda, Kazakhstan
G. H. Adamova
; Karaganda Technical University, Karaganda, Kazakhstan
Abstract
The results of studying the properties of prototypes obtained at the production site of the QazCarbon LLP (Karaganda, Republic of Kazakhstan) are presented. Grinding balls were smelted of low-chromium cast iron treated with modifiers of various nature. Boron-barium-containing materials were used as modifiers. It was found that the use of boron-barium-containing additives as modifiers qualitatively and quantitatively changes the structure of the alloy under study. After modification, the structure becomes more dispersed, the quantitative ratio between the main structural components:ledeburite, pearlite and carbide phase, changes. Such changing the structure has a positive effect on the impact resistance of the samples.
Keywords
chromium cast iron; boron-barium-containing additives; modification; wear resistance; structure
Hrčak ID:
262407
URI
Publication date:
3.1.2022.
Visits: 778 *