Preparation of Cr17Mn11Mo3N powders by high-pressure gas atomization and the nitrogen increasing mechanism

Ni, Guolong; Wang, Shuhuan; Li, Qun; Zhao, Ding Guo; Song, Chunyan; Li, Chenxiao

doi:10.1016/j.powtec.2021.03.025

Cited by 11 publications

(2 citation statements)

References 42 publications

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“…Nevertheless, several researchers have explored the possibility of producing steel powders with nitrogen content surpassing equilibrium levels. In a study by the authors [25], the impact of various factors -such as atmosphere composition, chamber pressure, and gas jet pressure -during atomization on the nitrogen content in Cr17Mn11Mo3N alloy powder was investigated. The research demonstrated that the nitrogen proportion in atomized powders escalates as the pressure in the chamber increases during the melting and spraying process.…”

Section: Introduction Introductionmentioning

confidence: 99%

Mechanical properties of high-nitrogen steel produced via selective laser melting using mechanically alloyed and spheroidized powders

Ozerskoi,

Razumov,

Silin

et al. 2024

Izv. VUZ. Poroshk. Met.

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In recent years, the development of additive technologies has been one of the priority tasks in the sector. Primarily, additive technologies enable the effective implementation of various design and engineering ideas in high-tech industries, such as the aircraft industry, engine technology, and rocket engineering. The expanded range of standardized materials for additive technologies will facilitate their integration into large-scale production. Of significant interest is the potential use of nitrogen-containing heat-resistant powder alloys to produce complex-shaped aircraft parts using additive technologies. This paper describes the complete process of obtaining samples from powders of alloys with superequilibrium nitrogen content using the selective laser melting (SLM) method. Four different compositions of high-nitrogen steels were obtained through mechanical alloying. Subsequently, the powders of these steels underwent processing using the plasma spheroidization method to be utilized in the SLM process. The SLM method was also employed to produce samples for mechanical tests. Throughout each stage of the process, the powders were thoroughly analyzed. One of the most critical parameters was the nitrogen content in the resulting powders. At each subsequent production stage, its proportion decreased, yet it remained at the superequilibrium content level of 0.13–0.44 wt. %. The mechanical tests confirmed that the alloys fabricated by the SLM method are not inferior in terms of their properties compared to those obtained using classical metallurgical technologies.

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Section: Introduction Introductionmentioning

confidence: 99%

Mechanical properties of high-nitrogen steel produced via selective laser melting using mechanically alloyed and spheroidized powders

Ozerskoi,

Razumov,

Silin

et al. 2024

Izv. VUZ. Poroshk. Met.

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“…The powdered metals, which have good characteristics, can be produced by several techniques including solid-state reduction, atomization, electrolysis and chemical processes but atomization has an advantage in terms of production quantity that came with a sufficient quality of the fabricated powders. Several researches were carried out over a decade in order to extend a capability of this process especially in terms of the quality of the fabricated powders, for example, effect of nozzle shapes in gas atomization processes [5][6][7][8][9], effect of a reduction of the spraying temperature [10,11] and effect of the temperature of cooling media [12]. Nevertheless, several limitations can still be found in this technique.…”

Section: Introductionmentioning

confidence: 99%

Ag Powder Production Using Wire Arc Spray Technique

Sukkee,

Wannasri,

Waewdee

et al. 2023

KEM

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The purpose of this research is to identify the optimal condition of the wire arc spray technique equipped with the gas atomization system using central composite design (CCD) of response surface methodology (RSM) in Minitab 18 software. Two independent parameters of the wire arc spray technique were studied, including arc voltage and air pressure. The statistical evaluations showed that both arc voltage and air pressure parameters had effects on the quality of the powder in terms of particle morphology and particle size distribution. Additionally, the arc voltage had the highest effect on particle circularity, whereas air pressure had the highest effect on particle size distribution. Finally, the optimal condition was the arc voltage and air pressure of 36.7429V and 0.5436 MPa, respectively, achieving a maximum particle circularity of 0.8284 and a targeted particle size distribution of 45 μm with the desirability of 0.7566 and 0.9928, respectively.

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Fabrication of Spherical Steel Powder with Superequilibrium Nitrogen Content for Laser Powder Bed Fusion Additive Manufacturing

Ozerskoi,

Razumov,

Silin

et al. 2024

JOM

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Preparation of Cr17Mn11Mo3N powders by high-pressure gas atomization and the nitrogen increasing mechanism

Cited by 11 publications

References 42 publications

Mechanical properties of high-nitrogen steel produced via selective laser melting using mechanically alloyed and spheroidized powders

Mechanical properties of high-nitrogen steel produced via selective laser melting using mechanically alloyed and spheroidized powders

Ag Powder Production Using Wire Arc Spray Technique

Fabrication of Spherical Steel Powder with Superequilibrium Nitrogen Content for Laser Powder Bed Fusion Additive Manufacturing

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