Comparison of the corrosion resistance of different steel grades nitrided, coated and duplex treated

Dingremont, N.; Bergmann, E.; Hans, Marcus; Collignon, P.

doi:10.1016/0257-8972(95)02578-2

Cited by 28 publications

(5 citation statements)

References 8 publications

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“…They showed that the duplex treatments improved the corrosion resistance of construction and hot working steel impressively when compared with nitriding or PVD coating. It has been reported that in certain corrosive environments, the service life of TiN coating could be increased by reducing pinhole-type defects [11,13]. Park et al [14] studied corrosion performance of layered coatings produced by physical vapor deposition.…”

Section: Introductionmentioning

confidence: 99%

Laser Assisted Nitriding of Ti-6Al-4V Alloy: Metallurgical and Electrochemical Properties

Yilbaş

Khalid

Shuja³

1999

Chem. Eng. Technol.

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The surface properties of Ti-6Al-4Valloy, such as wear resistance, are inadequate for many applications. To improve the surface properties of the alloy, many techniques have been considered. One of the promising techniques is to form a nitride layer on the surface of the workpiece by a laser beam. In the present study, laser assisted nitriding of the Ti-6Al-4Valloy surface is carried out under a nitrogen gas flow environment. A CO 2 laser is used to irradiate the Ti-6Al-4Valloy surface while nitrogen is introduced co-axially with the laser beam onto the workpiece surface. The resulting surface cross section is examined metallurgically. SEM and XRD were carried out for material characterization. The study is extended to include the electrochemical response of the resulting surfaces. The surface morphology of the electrochemically treated workpieces are examined. It is found that in the laser treated region dendritic structures occur and TiN forms in the surface vicinity. The density of pit formation at the surface of the treated region reduces considerably.

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Section: Introductionmentioning

confidence: 99%

Laser Assisted Nitriding of Ti-6Al-4V Alloy: Metallurgical and Electrochemical Properties

Yilbaş

Khalid

Shuja³

1999

Chem. Eng. Technol.

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“…The possibility of applying low-temperature nitriding to martensitic and ferritic stainless steels has been neglected in consideration. In the same period, many studies reported nitriding treatments carried out at temperatures comparable to those used for low alloy steels, i.e., at temperature of 500 • C or higher [25][26][27][28][29][30][31][32]. Lower temperatures were used in a few studies, but the formation of "expanded" phases was hardly recognized [25,29,33].…”

Section: Introductionmentioning

confidence: 99%

The “Expanded” Phases in the Low-Temperature Treated Stainless Steels: A Review

Borgioli

2022

Metals

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Low-temperature treatments have become a valuable method for improving the surface hardness of stainless steels, and thus their tribological properties, without impairing their corrosion resistance. By using treatment temperatures lower than those usually employed for nitriding or carburizing of low alloy steels or tool steels, it is possible to obtain a fairly fast (interstitial) diffusion of nitrogen and/or carbon atoms; on the contrary, the diffusion of substitutional atoms, as chromium atoms, has significantly slowed down, therefore the formation of chromium compounds is hindered, and corrosion resistance can be maintained. As a consequence, nitrogen and carbon atoms can be retained in solid solutions in an iron lattice well beyond their maximum solubility, and supersaturated solid solutions are produced. Depending on the iron lattice structure present in the stainless steel, the so-called “expanded austenite” or “S-phase”, “expanded ferrite”, and “expanded martensite” have been reported to be formed. This review summarizes the main studies on the characteristics and properties of these “expanded” phases and of the modified surface layers in which these phases form by using low-temperature treatments. A particular focus is on expanded martensite and expanded ferrite. Expanded austenite–S-phase is also discussed, with particular reference to the most recent studies.

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“…Duplex coatings, consisting of a nitrided load support layer and a hard coating top layer, are now available on a mass production scale [1,2], and are in use, or being considered for use, in a wide range of applications [3][4][5][6][7][8][9]. Various factors that influence the functioning of this type of coating system have been suggested, such as an unfavorable stress state with the nitrided layer [10,11], extra precipitations along the hard coating-prenitriding layer [12][13][14], or black layer formation by denitriding [1,15,16].…”

Section: Introductionmentioning

confidence: 99%

In-service performance of components treated with plasma nitriding and arc ion plating duplex coatings

Lien

Wang

Chang

et al. 2007

Journal of Materials Processing Technology

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Comparison of the corrosion resistance of different steel grades nitrided, coated and duplex treated

Cited by 28 publications

References 8 publications

Laser Assisted Nitriding of Ti-6Al-4V Alloy: Metallurgical and Electrochemical Properties

Laser Assisted Nitriding of Ti-6Al-4V Alloy: Metallurgical and Electrochemical Properties

The “Expanded” Phases in the Low-Temperature Treated Stainless Steels: A Review

In-service performance of components treated with plasma nitriding and arc ion plating duplex coatings

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