Use of plasma nitriding to improve the wear and corrosion resistance of 18Ni-300 maraging steel manufactured by selective laser melting

Godec, Matjaž; Podgornik, Bojan; Kocijan, Aleksandra; Donik, Črtomir; Balantič, Danijela A. Skobir

doi:10.1038/s41598-021-82572-y

Cited by 25 publications

(4 citation statements)

References 51 publications

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“…Nitriding, a process involving surface hardening through nitrogen diffusion under certain temperature conditions, has been known to enhance the mechanical properties of stainless steel, as well as its antibacterial properties, for instance, 316 L stainless steel, 18Ni-300 [6], and 718 alloys martensitic stainless steel, and 718 alloys. Additionally, surface nano crystallization has been observed to have a high chemical activity due to the enhancement of atomic diffusion.…”

Section: Introductionmentioning

confidence: 99%

Surface nano crystallization and nitriding on microstructure and properties of 304J1 stainless steel

Lian,

Zhang,

Wang

et al. 2024

J. Phys.: Conf. Ser.

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To improve the mechanical and antibacterial properties of 304J1 stainless steel, hybrid surface treatments, which include nitriding combined with shot peening operations, are used. Shot peening with different sizes of steel balls makes the material’s surface nanocrystalline, providing more diffusion channels for subsequent nitrogenating, and the nitriding efficiency is improved. Nitrogen cannot only improve the antibacterial property but also significantly enhance the strength of 304J1. The experimental results show that within a certain depth, the surface of 304J1 can be nanosized by shot peening for 20 min with a projectile diameter of 0.2 mm. The depth of the nitriding layer reaches 0.6 um, the surface hardness increases from 560 HV to 1100 HV, and the antibacterial property against Escherichia coli increases from 10% to 85%.

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Section: Introductionmentioning

confidence: 99%

Surface nano crystallization and nitriding on microstructure and properties of 304J1 stainless steel

Lian,

Zhang,

Wang

et al. 2024

J. Phys.: Conf. Ser.

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“…While aging precipitation treatments improve the mechanical properties of additive-manufactured maraging steels, several authors have also reported that these treatments tend to worsen their corrosion resistance [34,35]. From a practical application standpoint, the poor corrosion resistance of M300 steels compared to other tool steels or stainless steels represents a major challenge for SLM-processed martensitic aged steel parts [36]. As in the mechanical behavior of the material, corrosion resistance in martensitic steels is influenced by both the formation of precipitates and the presence of reversed austenite [37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Analysis of a Double Aging Process in a Maraging 300 Steel Fabricated by Selective Laser Melting, Using the Design of Experiments Technique

Pérez-Gonzalo,

González-Pociño,

Alvarez-Antolin

et al. 2023

Metals

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This study aims to optimize the aging treatment of a maraging 300 steel, without prior austenitizing, manufactured by the selective laser melting (SLM) technique. The study includes the analysis of a double aging process. In addition, the impact of the aging treatment on corrosion resistance in 3.5 wt.% NaCl solution was analyzed. The research technique followed was a factorial design of experiments with three factors and two levels, performing one replicate of each experiment. The results show that excellent mechanical properties can be achieved by omitting the solubilization treatment prior to aging. The highest hardness and tensile strength were achieved by performing a double aging at 460 °C for 8 h. Under these conditions, the maximum hardness exceeded 615 HV and the tensile strength was over 2140 MPa. Aging at 520 °C caused the formation of reverse austenite. The aging temperature was the only factor that had a significant effect on the formation of reverse austenite. It should be noted that the holding time at this temperature did not have a significant effect. The corrosion resistance, in 3.5 wt.% NaCl aqueous solution, increased in the aged samples compared to the as-printed sample. Samples overaged at 520 °C showed the best corrosion resistance. It can be concluded that the predominant cathodic reaction taking place is the reduction of oxygen dissolved in the electrolyte.

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“…Kurz [18] describes nitriding using nitriding powder and an activator, resulting in a signi cant reduction of nitriding time, achieving similar properties of the nitriding layer as those formed in a salt bath. Several authors present the use of nitriding to improve the properties of primary layers produced by various technologies [19][20][21]. Orečný et al [22] signi cantly increased wear resistance by nitriding high-temperature tempered tool steel.…”

Section: Introductionmentioning

confidence: 99%

Creation of wear-resistant layers on steels using TIG electric arc surface remelting process with applying CaCN2-based nitriding powder

Kováč¹,

Mikuš

Žarnovský³

et al. 2022

Preprint

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Tungsten inert gas (TIG) electric arc welding process was used for surface remelting of nitriding powder applied on selected steel grades. The influence of remelting on the chemical composition and microstructure changes in the remelted area of selected steels (25CrMo4, 30CrMoV9, 41CrAlMo7) with different content of nitride-forming elements (Al, V) was investigated to improve hardness and abrasion wear resistance. Nitriding powder Pulnierpulver based on calcium cyanamide (CaCN2) was used in remelting. Hardness measurements and determination of abrasive wear resistance on an abrasive cloth with Al2O3 particles were performed. The microstructures of the remelted layers, as well as the worn areas, were observed by SEM. The presence of nitrogen in the remelted layers was proved by EDX analysis. A significant increase of hardness and abrasive wear resistance was achieved up to a depth of 1–1.5 mm from the surface in the case of all steels through remelting process. These results obtained can be attributed to the significant effect of nitrogen on the hardenability increasing of remelted layers and alloying martensite with nitrogen. The most significant growths of both parameters investigated were achieved in 25CrMo4 steel, for which the most significant nitrogen enrichment was found. The presented process of TIG surface remelting with powders containing a particular element represents a cheap, affordable, and fast way of forming surface layers with improved hardness and wear resistance.

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Use of plasma nitriding to improve the wear and corrosion resistance of 18Ni-300 maraging steel manufactured by selective laser melting

Cited by 25 publications

References 51 publications

Surface nano crystallization and nitriding on microstructure and properties of 304J1 stainless steel

Surface nano crystallization and nitriding on microstructure and properties of 304J1 stainless steel

Analysis of a Double Aging Process in a Maraging 300 Steel Fabricated by Selective Laser Melting, Using the Design of Experiments Technique

Creation of wear-resistant layers on steels using TIG electric arc surface remelting process with applying CaCN2-based nitriding powder

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