Microstructure and Properties of Active Screen Plasma Nitrided Duplex Stainless Steel

Chiu, Liu Ho; Yang, Sen; Chen, F. S.; Chang, Hsin Hsin

doi:10.1080/10426911003748020

Cited by 36 publications

(19 citation statements)

References 7 publications

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“…This was attributed to the presence of expanded austenite phase [13]. In spite of the austenite and ferrite phasesbeing present in duplex stainless steel it was observed by Blawert et althat after low-temperature plasma nitriding of duplex stainless steel by plasma immersion ion implantation method, the incorporation of nitrogen led to the transformation of ferrite into an expanded austenitephase [14].Contrary to this observation, Bielawski et aland Chiu et alreported the formation of expanded ferrite and expanded austenite in both ferrite and austenite phases of UNS S31803 duplex stainless steel by gas nitriding and active screen nitriding process respectively [15,16]. Studies on the effect of carbon on phase transition in SAF 2205 duplex stainless steel by gas nitriding, active screen and plasma nitrocarburizing processeshave also been done.…”

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confidence: 72%

Study of plasma nitriding and nitrocarburizing for higher corrosion resistance and hardness of 2205 duplex stainless steel

2015

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mentioning

confidence: 72%

Study of plasma nitriding and nitrocarburizing for higher corrosion resistance and hardness of 2205 duplex stainless steel

2015

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“…Christiansen et al [8], instead, reported the formation of a thick layer of expanded austenite on both ferrite and austenite grains of the matrix in a SAF 2507 superduplex stainless steel. Chiu et al [9] reported the formation of expanded ferrite and expanded austenite on ferrite and austenite stringers of an UNS S31803 duplex, respectively.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Development and microstructure characterization of single and duplex nitriding of UNS S31803 duplex stainless steel

Tschiptschin

Varela

Pinedo³

et al. 2017

Surface and Coatings Technology

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“…A large amount of research has been carried out into the S-phase surface engineering of stainless steel and Co-Cr alloys [5][6][7][8][9][10]. However, limited work has been conducted on the low-temperature plasma nitriding of duplex stainless steels, particularly the lean DSS [11][12][13]. The reported research mainly investigated the surface layer structure, hardness and corrosion resistance of duplex stainless steels after plasma nitriding.…”

Section: Introductionmentioning

confidence: 99%

Combating the Tribo-Corrosion of LDX2404 Lean Duplex Stainless Steel by Low Temperature Plasma Nitriding

Dou

Tian

et al. 2018

Lubricants

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A lean duplex stainless steel, LDX2404, was DC plasma nitrided under a range of treatment conditions. The microstructure characterisation evaluation of the treated samples revealed that a dense, super-hard surface layer can be produced by low-temperature (<450 °C) plasma treatments. The original austenite phase became S-phase and the ferrite phase was supersaturated with nitrogen and ε-Fe3N nitride precipitated from it. When plasma nitriding was carried out at above 450 °C, chromium nitrides precipitated in the surface nitrided layer. Compared to the untreated samples, the surface hardness of the lean duplex stainless steel (DSS) is increased up to four times. The dry wear resistance increased when increasing the treatment temperature. In contrast, the low-temperature treated samples showed the best performance in the electrochemical corrosion and corrosion-wear tests; the performance of the high temperature (>450 °C) plasma nitrided samples was found to be significantly worse than that of the untreated material.

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Microstructure and Properties of Active Screen Plasma Nitrided Duplex Stainless Steel

Cited by 36 publications

References 7 publications

Study of plasma nitriding and nitrocarburizing for higher corrosion resistance and hardness of 2205 duplex stainless steel

Study of plasma nitriding and nitrocarburizing for higher corrosion resistance and hardness of 2205 duplex stainless steel

Development and microstructure characterization of single and duplex nitriding of UNS S31803 duplex stainless steel

Combating the Tribo-Corrosion of LDX2404 Lean Duplex Stainless Steel by Low Temperature Plasma Nitriding

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