Nitriding behaviour of maraging steel: experiments and modelling

Selg, H.; Meka, Sai Ramudu; Kachel, M.; Schacherl, R. E.; Waldenmaier, T.; Mittemeijer, E. J.

doi:10.1007/s10853-013-7248-2

Cited by 19 publications

(7 citation statements)

References 34 publications

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“…Thermo-chemical treatment is based on the diffusion change of the chemical composition of SL in order to obtain the required functional properties of tools. SL modification processes include nitriding and sulfonitriding (Baranowska et al 2007), (Lesz et al 2010), (Małdziński et al 2010), (Ratajski et al 2009), (Cernan et al 2012), (Sato et al 2012), (Selg et al 2013). Two variants of mechanical processes combined with sulfonitriding treatment were-grinding or hard turning and slide burnishing with 130 N force, respectively.…”

Section: Tool Steelsmentioning

confidence: 99%

Surface Treatment for Improving Selected Physical and Functional Properties of Tools and Machine Parts—A Review

Toboła¹,

Kalisz²,

Czechowski³

et al. 2020

J. Appl. Mater. Eng.

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Wear resistance, which is one of the main technological quality features of machine parts and tools, is determined by the properties of their surface layer. The demand for high-quality products forces manufacturers to use modern structural and tooling materials as well as efficient and cost-effective methods of their treatment. The paper presents the results of research on selected properties of tools made of tool steels and sintered carbides, as well as parts made of aluminum alloy subjected to selected surface treatment processes, such as mechanical (grinding, turning, milling, burnishing) and thermo-chemical (nitriding, sulfonitriding) processes, and physical vapor deposition (PVD) of coatings. The presented results, including analyses of the surface geometric structure, microstructure, and microhardness, as well as tribological and machining properties of selected materials, indicate the possibility of improving the functional quality of tools and machine parts.

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Section: Tool Steelsmentioning

confidence: 99%

Surface Treatment for Improving Selected Physical and Functional Properties of Tools and Machine Parts—A Review

Toboła¹,

Kalisz²,

Czechowski³

et al. 2020

J. Appl. Mater. Eng.

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“…A number of studies have previously employed denitriding in flowing H 2 -atmosphere of nitrided ferritic specimens. 17,25,41,45–47 In most of these investigations, higher prenitriding temperatures and longer prenitriding times than in the current study were employed, e.g. prenitriding at 580 °C for 24 h with a nitriding potential of 0.104 atm −½ in Hosmani et al 45 .…”

Section: Resultsmentioning

confidence: 98%

“…This includes the excess nitrogen dissolved in the ferrite matrix due to the expansion of the ferrite matrix by the precipitate-strain field, the so-called mobile excess nitrogen; 37,38 (iii) adsorbed/segregated nitrogen: due to the usually nano-sized nature of the nitride precipitates and the corresponding, very large, coherent precipitate/matrix interfacial area, considerable nitrogen can be adsorbed at the precipitate–matrix interfaces; this is the so-called immobile excess nitrogen. 37,38 In order to quantitatively describe the nitriding process (see, e.g., Schacherl et al , 38 Meijering, 39 van Landeghem et al , 40 Selg et al , 41 and Jung et al 42 ), knowledge of the respective amounts of excess nitrogen is required. Previous analyses of absorbed nitrogen of types (i–iii) have been performed in Hosmani et al , 17 Podgurski et al , 22 Biglari et al , 25 Jack, 43 Podgurski and Davis, 44 Hosmani et al , 45 Hosmani et al , 46 Jung et al 47 .…”

Section: Introductionmentioning

confidence: 99%

Alloying element nitride stability in iron-based alloys; denitriding of nitrided Fe–V alloys

Steiner

Meka

Göhring

et al. 2016

Materials Science and Technology

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Recognising the various types of absorbed nitrogen in nitrided iron-based alloys and the lack of accuracy in local composition analysis of the individual nano-sized nitride precipitates (e.g. by atom probe tomography), precise determination of the nitride composition requires so-called denitriding treatments. This study proposes two routes to determine the nanonitride stoichiometry, which are demonstrated by experimental analysis of the denitriding behaviour in hydrogen gas of nitrided, model Fe-V alloys. The minimal nitrogen activity to stabilise the alloying element nitrides MeN in Fe-Me-N alloys is calculated. A strategy is offered to stabilise the alloying element nitrides and to determine the nitrogen content strongly bonded in the nitrides.

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“…The large volumetric misfit of nitride precipitates and ferrite matrix (see Table 1) leads to a considerable tendency for the nitrided zone to expand. However, as the nitride zone is constrained by its adherence to the (rigid) unnitrided core, high compressive (residual) macrostress is present parallel to the surface in the surface adjacent region ( Ref 24,48,78,79). Upon relaxation of the nitrided zone, e.g., by DC (Ref 24), the compressive macrostress at the surface relaxes, and may even turn to a tensile macrostress, if the relaxed region is ''on top'' of a ''freshly nitrided'' region [see Fig.…”

Section: Macro-and Microstresses/strains In the Nitrided Microstructurementioning

confidence: 99%

Alloying Element Nitride Development in Ferritic Fe-Based Materials Upon Nitriding: A Review

Steiner

Mittemeijer

2016

J. of Materi Eng and Perform

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With the aim of achieving a better understanding of the nitriding process of iron-based components (steels), as applied in engineering practice, the theoretical background and experimental observations currently available on the crystallographic, morphological, and compositional properties of the nitride precipitates in nitrided model binary and ternary, ferritic Fe-based alloys are summarily presented. Thermodynamic and kinetic considerations are employed in order to highlight their importance for the nitriding reaction and the resulting properties of the nitrided zone, thereby providing a more fundamental understanding of the nitriding process.

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Nitriding behaviour of maraging steel: experiments and modelling

Cited by 19 publications

References 34 publications

Surface Treatment for Improving Selected Physical and Functional Properties of Tools and Machine Parts—A Review

Surface Treatment for Improving Selected Physical and Functional Properties of Tools and Machine Parts—A Review

Alloying element nitride stability in iron-based alloys; denitriding of nitrided Fe–V alloys

Alloying Element Nitride Development in Ferritic Fe-Based Materials Upon Nitriding: A Review

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