Preliminary communication

Investigation of boron segregation in low carbon steel

J. Lis ; Department of Production Management and Logistic, Czêstochowa University of Technology
A. Lis ; Institute of Materials Engineering, Czêstochowa University of Technology, Czêstochowa, Poland
C. Kolan ; Institute of Materials Engineering, Czêstochowa University of Technology, Czêstochowa, Poland

Abstract

Traces of born in the range 0,002-0,009 % are usually added to many grades of steel. The effect of boron on phase transformations and hardenability of low carbon low alloy steels depends on the form of its behavior in solid solution either in segregations or in precipitations. Temperature and cooling rate determine the existence of boron segregations on grain boundaries. In present paper simulations of boron concentrations were calculated with computer programme DICTRA for low carbon 0,08 %C steel with 0,006 % boron. Investigations were carried out for temperature 1300 – 700°C and cooling rates from 1°C/s to 100°C/s. The changes of boron concentrations in austenite and ferrite after commencement of γ→α phase transformation were established.

Keywords

Low carbon manganese steel; boron segregation; austenite grain size

Hrčak ID:

62731

URI

https://hrcak.srce.hr/62731

Publication date:

1.4.2011.

Article data in other languages: croatian

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