Obtaining of High Cr Content Cast Iron Materials

International Conference on Innovative Research - ICIR Euroinvent 2017

Florea, C.^1 ; Bejinariu, C.^1 ; Carcea, I.^1 ; Cimpoesu, N.^1 ; Chicet, D.L.^1 ; Savin, C.^1

Gheorghe Asachi Technical University of Iasi, Strada Prof. dr. doc. D. Mangeron nr. 41, Iasi

700050, Romania^1

关键词: Alloy compositions;    Cast iron materials;    Casting process;    Experimental alloys;    High Cr content;    Induction furnace;    Residual austenite;    Wear condition;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/209/1/012046/pdf
DOI  :  10.1088/1757-899X/209/1/012046

来源: IOP

【 摘 要 】

We have obtained, through the classic casting process, 3 highly chromium-based experimental alloys proposed for replacing the FC 250 classical cast iron in braking applications. Casting was carried out in an induction furnace and cast into moulds made of KALHARTZ 8500 resin casting mixture and HARTER hardener at SC RanCon SRL Iasi. It is known that the microstructure of the cast iron is a combination of martensite with a small amount of residual austenite after the heat treatment of the ingot. In the case of high-alloy chromium alloys, the performance of the material is due to the presence of M7C3 carbides distributed in the iron matrix Resistance to machining and deformation is based on alloy composition and microstructure, while abrasion resistance will depend on properties and wear conditions.