ScholarLens Back to search
2014•Unpublished venueRequires access

PREDICTION, FORMATION AND ANALYSIS OF MICROSTRUCTURE OF HIGH CHROMIUM-ALLOYED PM STAINLESS STEEL SINTERED IN DIFFERENT ATMOSPHERES

Ruslan Shvab, Eduard Hryha, Petro Shykula, Ola Bergman, Sven Bengtsson, Eva Dudrová

Open publisher page 2 citations

Abstract

Analysis of the microstructure of high chromium alloyed PM stainless steel was performed in several stages. The equilibrium phase diagrams and mass fractions of phases for alloy Fe-20%Cr-17%(Ni,Si,Mn)-C were calculated using Thermo-Calc and JMatPro software. All calculations were done for two nitrogen content levels, which correspond to compositions of material sintered in N2-H2 and atmosphere without nitrogen (pure H2 and argon), respectively. According to calculations, austenite and chromium carbides are in equilibrium if sintering is an in atmosphere without nitrogen, and austenite with chromium carbonitrides and carbides for material sintered in N2-H2 atmosphere. The microstructure of the materials is affected by the sintering atmosphere, especially at the surface. The influence of sintering atmospheres on microstructure was analyzed. The results showed that the predicted microstructure is in good agreement with observed real microstructure.

About this research paper

What this paper is about

Analysis of the microstructure of high chromium alloyed PM stainless steel was performed in several stages. The equilibrium phase diagrams and mass fractions of phases for alloy Fe-20%Cr-17%(Ni,Si,Mn)-C were calculated using Thermo-Calc and JMatPro software. All calculations were done for two nitrogen content levels, which correspond to compositions of material sintered in N2-H2 and atmosphere without nitrogen (pure H2 and argon), respectively. According to calculations, austenite and chromium carbides are in equilibrium if sintering is an in atmosphere without nitrogen, and austenite with chromium carbonitrides and carbides for material sintered in N2-H2 atmosphere. The microstructure of the materials is affected by the sintering atmosphere, especially at the surface. The influence of sintering atmospheres on microstructure was analyzed. The results showed that the predicted microstructure is in good agreement with observed real microstructure.

Why it matters

OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Analysis of the microstructure of high chromium alloyed PM stainless steel was performed in several stages. The equilibrium phase diagrams and mass fractions of phases for alloy Fe-20%Cr-17%(Ni,Si,Mn)-C were calculated using Thermo-Calc and JMatPro software. All calculations were done for two nitrogen content levels, which correspond to compositions of material sintered in N2-H2 and atmosphere without nitrogen (pure H2 and argon), respectively. According to calculations, austenite and chromium carbides are in equilibrium if sintering is an in atmosphere without nitrogen, and austenite with chromium carbonitrides and carbides for material sintered in N2-H2 atmosphere. The microstructure of the materials is affected by the sintering atmosphere, especially at the surface. The influence of sintering atmospheres on microstructure was analyzed. The results showed that the predicted microstructure is in good agreement with observed real microstructure.

Key concepts: Microstructure, Materials science, Metallurgy, Chromium, Sintering, Austenite, Carbide, Atmosphere (unit)

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
PREDICTION, FORMATION AND ANALYSIS OF MICROSTRUCTURE OF HIGH CHROMIUM-ALLOYED PM STAINLESS STEEL SINTERED IN DIFFERENT ATMOSPHERES — Research Paper | ScholarLens