Influence of different layer microstructures induced by different gas compositions on corrosion behavior of plasma nitrided stainless steel

Amiri, Saeid; Moradshahi, M.

doi:10.1016/j.surfcoat.2007.02.006

Cited by 16 publications

(7 citation statements)

References 35 publications

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“…From the surface micrograph of nitrided samples, the grain boundaries and slip bands are clearly visible because of ion sputtering or nitrogen dissolved in austenite. These features are often observed on the surface of austenitic stainless steels nitrided at lower temperatures [8,21,26,32]. The content of nitrogen in the surface region is about 27 at.…”

Section: Resultsmentioning

confidence: 92%

“…The 480-N sample showed the relative low corrosion resistance because the Cr-N compound began to precipitate at such higher temperature. Obviously, the corrosion resistance of austenitic stainless steels can be improved evidently by forming the nitrided layer without CrN precipitates [8,21,25,26,29,33,34].…”

Section: Resultsmentioning

confidence: 99%

“…NH 3 and N 2 -H 2 at different ratios are commonly used to generate active nitrogen atoms for nitriding [16][17][18][19][20][21][22][23][24]. Researchers have reported the effect of the ratio of N 2 and H 2 on the plasma nitriding of austenitic stainless steels [25][26][27][28][29]. The previous work demonstrated that mixture of nitrogen (N 2 ) and ammonia (NH 3 ) with proper ratio could enhance the rate of plasma nitriding [30].…”

Section: Introductionmentioning

confidence: 99%

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Effect of nitriding temperature and its effects on the corrosion and wear resistance of 304 austenitic stainless steel

Peng,

Wang

2023

Surf. Topogr.: Metrol. Prop.

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Rapid plasma nitriding of AISI 304 austenitic stainless steel (304SS) was carried out at 440, 460 °C and 480 °C for 1 h in a mixture of NH3 and N2 with a ratio of 1:2. The phase composition, thickness of nitrided layer and properties of wear, and corrosion resistance were evaluated. After nitriding at 480 °C for 1 h, a 6.3 μm the thick nitrided layer was achieved. The influence of the nitriding process on the microstructure, morphology, hardness, corrosion, and wear resistance of the nitrided layers were also studied. Compared with unnitrided 304SS, the wear and corrosion resistances were substantially improved.

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Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of nitriding temperature and its effects on the corrosion and wear resistance of 304 austenitic stainless steel

Peng,

Wang

2023

Surf. Topogr.: Metrol. Prop.

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“…Plasma treatment has been used for decades as a means of modification and functionalization of polymers, and current applications range from manufacturing of microelectronics 1, improvement of scratch 2 and corrosion 3 resistance, enhancement of the adhesive properties of polymers 4, to treatment of materials within the textile 5 and cellulose industries 6. Plasma treatment is also used to improve the biocompatibility of medical polymeric products such as contact lenses 7 and porous polymer membranes 8, as well as skin treatment, wound healing, and tissue regeneration 9.…”

Section: Introductionmentioning

confidence: 99%

Plasma brominated polymer particles as grafting substrate for thiol‐terminated telomers

Byström

Nordborg

Limé

et al. 2010

J of Separation Science

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A combined surface activation and "grafting to" strategy was developed to convert divinylbenzene particles into weak cation exchangers suitable for protein separation. The initial activation step was based on plasma modification with bromoform, which rendered the particles amenable to further reaction with nucleophiles by introducing Br to a surface content of 11.2 atom-%, as determined by X-ray photoelectron spectroscopy. Grafting of thiol-terminated glydicyl methacrylate telomers to freshly plasma activated surfaces was accomplished without the use of added initiator, and the grafting was verified both by reduction in bromine content and the appearance of sulfur-carbon linkages, showing that the surface grafts were covalently bonded. Following grafting the attached glydicyl methacrylate telomer tentacles were further modified by a two-step procedure involving hydrolysis to 2,3-hydroxypropyl groups and conversion of hydroxyl groups to carboxylate functionality by succinic anhydride. The final material was capable of baseline separating four model proteins in 3 min by gradient cation exchange chromatography in a fully aqueous eluent.

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“…Nitriding is one of the major industrial surface modification technologies to improve hardness [1,2], wear [3], fatigue [4] and corrosion resistance [5] of steels. The ionic implantation technique has been quoted to improve both the mechanical [6] and the corrosion [7,8] resistance but the implanted depth is too shallow to be applied for long term applications [3] compared to gas and plasma nitriding. Gas nitriding usually brings about precipitation of metallic nitrides, depending on the N 2 :H 2 gas ratio [9,10].…”

Section: Introductionmentioning

confidence: 99%

Graded Nitrogen Ingress in FCC Metallic Structures and the Related Microstructures and High Temperature Oxidation Behaviour

Pedraza

Grosseau-Poussard

Dinhut

et al. 2009

DDF

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Nitriding by low energy high flux processing has been carried out at about 400°C in fcc metal substrates (pure Ni, Ni-20Cr model alloy and a conventional AISI 304L stainless steel). The gradual ingress of this element into the structures will be shown to depend markedly on the chemical composition of the substrate. The associated expansion of the fcc lattices and surface roughness will be discussed in this work with the support of X-ray diffraction, atomic force, scanning and transmission electron microscopy techniques. In light of the resulting composition, microstructures and thickness of nitrided layers, some preliminary results of their behaviour under isothermal oxidation conditions at high temperatures will be discussed. The high temperatures will provoke decomposition of the expanded austenite into a conventional gamma phase and some chromium nitrides. Trapping of chromium therefore shall explain a reduction of the high temperature oxidation resistance against the untreated substrates.

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Influence of different layer microstructures induced by different gas compositions on corrosion behavior of plasma nitrided stainless steel

Cited by 16 publications

References 35 publications

Effect of nitriding temperature and its effects on the corrosion and wear resistance of 304 austenitic stainless steel

Effect of nitriding temperature and its effects on the corrosion and wear resistance of 304 austenitic stainless steel

Plasma brominated polymer particles as grafting substrate for thiol‐terminated telomers

Graded Nitrogen Ingress in FCC Metallic Structures and the Related Microstructures and High Temperature Oxidation Behaviour

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