Structural, mechanical, and tribological properties of AISI 304 and AISI 316L steels submitted to nitrogen–carbon glow discharge

Nascimento, Fabiana Cristina; Lepienski, C.M.; Foerster, C.E.; Assmann, André; Silva, S. L. R. da; Siqueira, C.J. de M.; Chinelatto, Adilson Luiz

doi:10.1007/s10853-008-3211-z

Cited by 35 publications

(21 citation statements)

References 33 publications

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“…The hardness at depths higher than 2000 nm (bulk) is not shown in Figure 2 as it was evaluated in a previous study [11] in which it presented value close to 2.8 GPa. This region was compared to the hardness of a commercial austenitic stainless steel AISI 304 [12] which presented hardness (bulk) around 3.5 GPa. It can be seen from Figure 2 that the values present a significant dispersion band in regions very close to the surface.…”

Section: Resultsmentioning

confidence: 99%

Mechanical, structural and tribological properties of superaustenitic stainless steel submitted at solution heat treatment

Borges¹,

Oliveira²,

Kublitski³

2015

Matéria (Rio J.)

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RESUMOO aço inoxidável superasutenítico apresenta diversas aplicações tecnológicas, principalmente em ambientes corrosivos. A precipitação de diferentes fases pode alterar algumas de suas propriedades mecânicas. Tais alterações afetam vários fatores, incluindo a vida útil do material diante de condições de trabalho adversas. Neste estudo, medidas de Indentação Instrumentada, Tribologia e Difração de Raios X (DRX) foram utilizadas para avaliar possíveis alterações em regiões próximas à superfície em amostras tratadas termicamente. Os parâmetros analisados foram: dureza e módulo de elasticidade, coeficiente de atrito e alterações estruturais na célula unitária nas fases identificadas. Os resultados foram comparados com aço austenítico comum da famí-lia AISI 304. A presença das fases  (grupo espacial P42mnm) e austenita- (grupo espacial Fm3m) foram detectadas. Os dados analisados indicaram que a presença da fase intermetálica  contribuiu para pequenas alterações na dureza em regiões próximas à superfície e no coeficiente de atrito. Para regiões mais profundas (bulk) as propriedades analisadas foram semelhantes aos aços inoxidáveis comerciais.Palavras-chave: aço austenítico, aço superaustenitico, refinamento Rietveld. ABSTRACTThe superaustenitic stainless steel presents several technological applications, mainly in corrosive environments. The different phase precipitation might alter some of its mechanical properties. Such alterations affect several factors, including the working life of the material under adverse working conditions. In this study, Instrumented Indentation techniques, Tribology and X-ray diffraction (XRD) were used to evaluate alterations in regions close to the surface. The parameters analyzed were: hardness and elastic modulus (instrumented indentation), friction coefficient (tribology) and structural alterations of the unit cell of the identified phases (XRD -Rietveld Refinement). All properties analyzed were compared with those of common austenitic steel. The presence of -phase (space group P42mnm) and -austenite (space group Fm3m) were detected. Data analyzed indicated that the presence of -phase caused small alteration in properties such as hardness in regions close to the surface. In the regions farther from the surface (material bulk) data can be compared to that of conventional austenitic steel.

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Section: Resultsmentioning

confidence: 99%

Mechanical, structural and tribological properties of superaustenitic stainless steel submitted at solution heat treatment

Borges¹,

Oliveira²,

Kublitski³

2015

Matéria (Rio J.)

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“…As previously commented GD working temperature higher than 400°C yields can produce high roughness degree [8,9,26,27]. The roughness resulting from the nitrocarburizing at 300°C is in an acceptable range (lower than 100 nm in high - Fig.…”

Section: Tribological Featuresmentioning

confidence: 96%

“…Previous studies about nitrocarburizing by GD on AISI 304 and AISI 316l stainless steels [27] showed that working temperatures higher than 300°C reduces the wear up to a factor of five in comparing to untreated condition. In order to better understand nitrocarburizing processes by GD on the mechanical and tribological properties of steels, we subjected AISI 304 stainless steel to nitrocarburizing at low carbon concentration at the temperature of 300°C.…”

Section: Introductionmentioning

confidence: 92%

AISI 304 nitrocarburized at low temperature: Mechanical and tribological properties

Foerster

Assmann

Silva

et al. 2010

Surface and Coatings Technology

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“…At working temperatures higher than 400°C, roughness increased and wear was limited to asperity compaction. Wear was reduced by up to a factor of 5 in treated steels [19]. NiCrBSi has been deposited onto 0Cr13Ni5Mo stainless steel using the activated combustion high velocity air fuel (AC-HVAF) technique.…”

Section: Introductionmentioning

confidence: 99%

Improvement of High Temperature Wear Resistance of AISI 316 ASS through NiCrBSiCFe Plasma Spray Coating

Parthasarathi¹,

Duraiselvam²

2010

JMMCE

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Structural, mechanical, and tribological properties of AISI 304 and AISI 316L steels submitted to nitrogen–carbon glow discharge

Cited by 35 publications

References 33 publications

Mechanical, structural and tribological properties of superaustenitic stainless steel submitted at solution heat treatment

Mechanical, structural and tribological properties of superaustenitic stainless steel submitted at solution heat treatment

AISI 304 nitrocarburized at low temperature: Mechanical and tribological properties

Improvement of High Temperature Wear Resistance of AISI 316 ASS through NiCrBSiCFe Plasma Spray Coating

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