Characterization of Impurities and Inclusions in Ferrochrome Alloy and Their Effects on the Inclusion Characteristics in Stainless Steels

9 Pages Posted: 22 Sep 2021

See all articles by Yong Wang

Yong Wang

KTH Royal Institute of Technology

Andrey Karasev

KTH Royal Institute of Technology

Wangzhong Mu

KTH Royal Institute of Technology

Joo Hyun Park

Hanyang University - Division of Materials Science and Engineering

Pär G Jönsson

KTH Royal Institute of Technology

Date Written: September 12, 2021

Abstract

Laboratory scale alloying experiments were carried out by the addition of a commercial low carbon ferrochrome (LCFeCr) alloy to 430-grade ferritic stainless steel. The inclusions in FeCr alloys as well as in the steel samples before and after alloy addition were investigated using an electrolytic extraction (EE) technique. The results show that the Ti content decreases after the FeCr alloy addition. MnCr2O4 inclusions from FeCr alloys are transformed into Ti2O3-Cr2O3 based liquid inclusions and Ti2O3-rich solid inclusions. They are formed due to the reactions between MnCr2O4 and either TiN or dissolved Ti, which needs to be further studied. The ratio of Ti/Al in the steel melt has a direct influence on the evolution of the inclusions. The present study aims to contribute for understanding the impurities in FeCr alloys and their effect on the inclusion characteristics for the stainless steel production.

Keywords: FeCr, alloying, non-metallic inclusions, steel cleanliness.

Suggested Citation

Wang, Yong and Karasev, Andrey and Mu, Wangzhong and Park, Joo Hyun and Jönsson, Pär G, Characterization of Impurities and Inclusions in Ferrochrome Alloy and Their Effects on the Inclusion Characteristics in Stainless Steels (September 12, 2021). Proceedings of the 16th International Ferro-Alloys Congress (INFACON XVI) 2021, Available at SSRN: https://ssrn.com/abstract=3926688 or http://dx.doi.org/10.2139/ssrn.3926688

Yong Wang (Contact Author)

KTH Royal Institute of Technology ( email )

Sweden

Andrey Karasev

KTH Royal Institute of Technology ( email )

Sweden

Wangzhong Mu

KTH Royal Institute of Technology ( email )

Sweden

Joo Hyun Park

Hanyang University - Division of Materials Science and Engineering ( email )

Seoul, 04763
Korea, Republic of (South Korea)

Pär G Jönsson

KTH Royal Institute of Technology ( email )

Sweden

Do you have a job opening that you would like to promote on SSRN?

Paper statistics

Downloads
113
Abstract Views
280
rank
347,486
PlumX Metrics