Selective Laser Melting of Corrosion-Resistant Steel

Ratkevich, G. V.; Жданов, А. В.; Belyaev, Leonid; Yugov, V. I.; Afanas’eva, L. E.

doi:10.1134/s0036029519130305

Cited by 1 publication

(1 citation statement)

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“…Additionally, presence of large amount of expensive chromium in corrosion-resistant steels is considered as one of the main problems of their recycling [15][16][17]. This problem can be solved via comminution of wastes and their secondary use.…”

Section: Introductionmentioning

confidence: 99%

Structure and properties of sintered corrosion-resistant steel manufactured from electroerosive powders

Агеев¹,

Агеева²,

Khardikov³

2021

cisisr

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This work solves the problem of saving expensive chrome. This problem is proposed to be solved by grinding their waste of corrosion-resistant steels and reusing them. One of the most promising and industrially non-applicable methods for grinding any electrically conductive material is the electroerosion method. Comprehensive theoretical and experimental research is required to develop technologies for the reuse of electroerosive powders and evaluate the effectiveness of their use. The purpose of this work was to study the structure and properties of sintered samples from electroerosive corrosionresistant powders obtained in butyl alcohol. To perform the planned studies, Kh13 steel waste was selected as the dispersible material. Waste steel Kh13 was processed at a voltage on the electrodes of 100-110 V; the capacity of the discharge capacitors is 45 UF and the pulse repetition rate is 65-75 Hz. Butyl alcohol was used as the working fluid. The resulting powder was consolidated by spark plasma sintering (SPS) using the SPS 25-10 spark plasma sintering system. Based on the conducted experimental studies aimed at studying the structure and properties of sintered samples from electroerosive corrosion-resistant powders obtained in butyl alcohol, the high efficiency of the spark plasma sintering technology is shown, which provides a uniform heat distribution over the sample, controlled porosity and high physical and mechanical properties with a short working cycle time and grain growth suppression.

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Section: Introductionmentioning

confidence: 99%