Corrosion and tribotechnical properties of materials based on Kh18N15 stainless steels with MoS2 and Cr3C2 additives

Napara-Volgina, S. G.; Orlova, L. N.; Скуратовський, А. К.

doi:10.1007/bf02675884

Powder Metall Met Ceram

1999

DOI: 10.1007/bf02675884

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Corrosion and tribotechnical properties of materials based on Kh18N15 stainless steels with MoS2 and Cr3C2 additives

S. G. Napara-Volgina¹,

L. N. Orlova²,

А. К. Скуратовський³

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Cited by 8 publications

(2 citation statements)

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“…The standard was steel of the same grade without additions. Choice of objects was based on the results of work in [6][7][8]. …”

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confidence: 99%

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Hot-forged wear-resistant powder meterials based on stainless steels of the austenitic class

Maslyuk

Napara-Volgina

Orlova

et al. 2006

Powder Metall Met Ceram

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The microstructure, tribological and physicomechanical properties of hot-forged composites based on stainless steel of the austenitic class with additions of carbon, Cr 3 C 2 and MoS 2 are studied. The possibility is established of using these composites for powder structural articles resistant to wear and corrosion.Information about the preparation of dense wear-resistant materials based on stainless steels is very limited and it mainly concerns steels of the martensitic class, for whose preparation powder alloys of the corresponding composition or a mixture of iron powder with chromium-and carbon-containing components are used. As these components it is possible to use fine powders of chromium or chromium carbide and graphite [1,2]. Materials have also been studied [3-5] based on stainless steels of the austenitic class whose wear resistance is created by introducing solid additions to the charge (predominantly carbide additions) or by simultaneous use of carbide-forming elements and graphite. Typical for these materials is use during their preparation of fine (not more than 3-5 μm) additions of carbides or carbide-forming elements, and also of the method of single-stage compaction and sintering.We have prepared by single-stage compaction and sintering [6] composites resistant to wear and corrosion based on stainless steels of the austenitic class also containing inclusions of chromium carbide that markedly increase their wear resistance compared with known materials. In addition, apart from chromium carbide, within the composition of these materials there was some percentage of molybdenum disulfide that improves their tribological characteristics, in particular it reduces the friction coefficient especially in the absence of a lubricant.A disadvantage of the materials developed is their relatively low physicomechanical properties caused by porosity. In addition, porosity makes heat treatment difficult that is necessary in order to improve the physicomechanical and tribological properties of materials. In view of this a study was made of the possibility of preparing wear-resistant composites based on stainless steels by hot forging of porous billets. Thus, the aim of this research is to study structure formation during hot forging and heat treatment of wear-and corrosion-resistant materials based on stainless steel of the austenitic class grade Kh18N15 with different additions, and also to study the physicomechanical and tribological properties of composites.Composites based on steel Kh18N15 were studied with additions of 15% chromium carbide, 5% molybdenum disulfide, and 0.6% carbon, and also with additions of carbon alone (up to 1.4%). The standard was steel of the same grade without additions. Choice of objects was based on the results of work in [6][7][8].

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“…The standard was steel of the same grade without additions. Choice of objects was based on the results of work in [6][7][8]. …”

mentioning

confidence: 99%

“…Tests were performed by the procedure in [8] under dry friction conditions and friction with a lubricant. Specimens with a size of 7 × 5 × 20 mm were pressed to a flat surface with a force of 98 N (10 kg) on a rotating roller 40 mm in diameter made of steel 45 and having a hardness of 40-42 HRC.…”

mentioning

confidence: 99%

Hot-forged wear-resistant powder meterials based on stainless steels of the austenitic class

Maslyuk

Napara-Volgina

Orlova

et al. 2006

Powder Metall Met Ceram

Self Cite

View full text Add to dashboard Cite

show abstract

Wear-resistant and corrosion-resistant carbide-steel-type materials having different matrices

Maslyuk¹,

Napara-Volgina²

1999

Powder Metall Met Ceram

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The structurization and properties of Fe–Cr–C alloys with a liquid phase vanishing during sintering

Brodnikovskii

Михайлов

Mazur

et al. 2013

Powder Metall Met Ceram

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Corrosion and tribotechnical properties of materials based on Kh18N15 stainless steels with MoS2 and Cr3C2 additives

Cited by 8 publications

References 3 publications

Hot-forged wear-resistant powder meterials based on stainless steels of the austenitic class

Hot-forged wear-resistant powder meterials based on stainless steels of the austenitic class

Wear-resistant and corrosion-resistant carbide-steel-type materials having different matrices

The structurization and properties of Fe–Cr–C alloys with a liquid phase vanishing during sintering

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