Recent Results Concerning Properties of High-Performance Cast Martensitic Stainless Steels: The 17Cr-4Ni Low-Carbon Steels

The structure of low-carbon steels after saturation by nitrogen and carbon in the mode of electrolytic-plasma nitriding and carbonitriding on the surface structure of austenitic stainless steel 12Cr18Ni10Ti has been studied. Optimum modes of electrolytic-plasma nitriding and carbonitriding are determined ensuring the maximum saturation of nitrogen and carbon, the microhardness of the surface. It is established, that after electrolyte-plasma processing microstructure of steel 12Cr18Ni10Ti has martensite structure. As a result of the research it is revealed that steel 12Cr18Ni10Ti after the electrolyte-plasma processing has high hardness.

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A Thermodynamic Database for Fe-Cr-Mn-Ni-Ti-S-C-N System

Materials Science Forum ◽

10.4028/www.scientific.net/msf.500-501.711 ◽

2005 ◽

Vol 500-501 ◽

pp. 711-718 ◽

Cited By ~ 8

Author(s):

Katsunari Oikawa ◽

Hajime Mitsui ◽

Kiyohito Ishida

Keyword(s):

Complex System ◽

Experimental Data ◽

Phase Diagram ◽

Thermodynamic Properties ◽

Stainless Steels ◽

Carbon Steels ◽

Thermodynamic Database ◽

Low Carbon ◽

Low Carbon Steels ◽

Good Agreement

A database for thermodynamic information of sulfides and carbo-sulfide in steels has been developed, where the thermodynamic properties of the relevant constituting sub-system of the complex system have been assessed by the CALPHAD (Calculation of Phase Diagrams) approach. The utility of this database is demonstrated in examples of phase diagram calculations of low carbon steels and stainless steels. The calculated results are in good agreement with experimental data. The developed thermodynamic database would be useful in predicting the formation of sulfides and carbo-sulfides in the commercial steels.

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Simulating the Topology of Recrystallization in Stabilized Ferritic Stainless Steels

Materials Science Forum ◽

10.4028/www.scientific.net/msf.467-470.671 ◽

2004 ◽

Vol 467-470 ◽

pp. 671-676 ◽

Cited By ~ 2

Author(s):

Chad W. Sinclair ◽

D. Weygand ◽

J. Lépinoux ◽

Yves Bréchet

Keyword(s):

Stainless Steels ◽

Carbon Steels ◽

Ferritic Steels ◽

Two Dimensional ◽

Low Carbon ◽

Microstructural Characteristics ◽

Ferritic Stainless Steels ◽

Low Carbon Steels ◽

Cold Rolled ◽

Key Features

The observation of inhomogeneous, ‘sluggish’ recrystallization in ferritic steels has been extensively documented and discussed, particularly with reference to low carbon steels. Stabilized ferritic stainless steels are also prone to this phenomenon and, in many cases, exhibit the effect more strongly than their carbon counterparts. The situation for stainless steels is exacerbated in part by the topology of the cold rolled microstructure, which is composed of highly elongated and layered grains. In this work an attempt has been made to probe the key features of this process by means of a two-dimensional vertex simulation. Key microstructural characteristics such as subgrain and grain size, topology, misorientation and energy are varied in these simulations in an attempt to elucidate the mechanisms responsible for the final recrystallization. These simulations are compared and contrasted with experimental observations from the recrystallization of an AISI409 stainless steel.

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Nitriding and Carbonitriding Influence on Stainless Steels Surface Layers Changes

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.379.105 ◽

2013 ◽

Vol 379 ◽

pp. 105-109 ◽

Cited By ~ 1

Author(s):

Маzhyn Skakov ◽

Sherzod Kurbanbekov ◽

Yerkezhan Tabieva ◽

Erkin Zamanbekuly

Keyword(s):

Stainless Steel ◽

Stainless Steels ◽

Plasma Nitriding ◽

Plasma Processing ◽

High Hardness ◽

Carbon Steels ◽

Low Carbon ◽

Surface Layers ◽

Low Carbon Steels ◽

Martensite Structure

The structure of low-carbon steels after saturation by nitrogen and carbon in the mode of electrolytic-plasma nitriding and carbonitriding on the surface structure of austenitic stainless steel 12Cr18Ni10Ti has been studied. Optimum modes of electrolytic-plasma nitriding and carbonitriding are determined ensuring the maximum saturation of nitrogen and carbon, the microhardness of the surface. It is established, that after electrolyte-plasma processing microstructure of steel 12Cr18Ni10Ti has martensite structure. As a result of the research it is revealed that steel 12Cr18Ni10Ti after the electrolyte-plasma processing has high hardness.

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