Investigation into the Influence of Jet Cavitation Impact on Changes in Characteristics of the Surface of Structural Steel 30L and 20GL

Tkhabisimov, A. B.; Zilova, O. S.; Skobelev, K. D.; Kalakutskaya, O V

doi:10.1134/s0040601522060076

Cited by 1 publication

(2 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In comparison with earlier studies of solid particle erosion resistance for 20 GL steel with boriding [102], this work revealed a significant increase in the wear intensity for 30 L steel samples with boriding. This may be due to an increased percentage (%) of carbon C: 30 L steel (0.27-0.35) and 20 GL steel (0.15-0.25) [101] and/or a decrease in the percentage (%) of manganese Mn: 30 L steel (0.4-0.9) and 20 GL steel (1.2-1.6) [101]. A decrease in the percentage content of the alloying element manganese led to an increase in the diffusion of boron atoms into the main lattice of the material and, as a consequence, to an increase in the microhardness of the surface: 30 L steel-2100-2200 HV0.01, 20 GL steel-1800-1900 HV0.01, which led to additional embrittlement and the appearance of transverse cracks, which intensified the wear process.…”

Section: Resultsmentioning

confidence: 99%

“…Earlier, a team of authors conducted studies of the cavitation resistance of 20 GL and 30 L steel samples [101], widely used for the production of hull and flow parts of hydraulic turbines operating under static and dynamic loads. The studies were carried out using an experimental jet-type cavitation rig in accordance with the ASTM G134-17 standard with the following parameters: a nozzle with a diameter of 0.85 mm, a distance to the nozzle of 15 mm, pressure in front of the nozzle of 18 MPa, and the number of cavitations at 0.0055.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Studies of the Solid Particle Erosion Resistance of 30 L Steel with Different Types of Surface Modification

Tkhabisimov,

Mednikov,

Zilova

2023

Metals

View full text Add to dashboard Cite

Earlier studies have shown that 30 L steel, used for the manufacture of hydraulic machinery equipment elements, has greater resistance to cavitation wear than 20 GL steel. This paper presents the results of experimental studies of the solid particle erosion resistance of 30 L structural steel samples with different surface modifications based on nitriding and boriding processes. The characteristics of the modified near-surface layers were determined. The results of the solid particle erosion resistance tests carried out according to the ASTM G76-13 standard are presented. The research results demonstrated that boriding processes worsen the solid particle erosion resistance of 30 L steel at flow impact angles of 30° and 90°. All the considered variants of surface nitriding at an impact angle of 90° do not worsen the solid particle erosion resistance of 30 L steel samples, while at an impact angle of 30°, they increase the solid particle erosion resistance by at least 10–20%.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%