Strengthening Effect after Disintegration of Stainless Steel Using Pulsating Water Jet

0506868 - ÚGN 2020 RIV HR eng J - Journal Article
Hloch, Sergej - Srivastava, M. - Królczyk, J. B. - Chattopadhyaya, S. - Lehocká, D. - Simkulet, V. - Krolczyk, G.
Strengthening Effect after Disintegration of Stainless Steel Using Pulsating Water Jet.
Technicki vjesnik - Technical Gazette. Roč. 25, č. 4 (2018), s. 1075-1079. ISSN 1330-3651. E-ISSN 1848-6339
R&D Projects: GA MŠMT(CZ) LO1406
Institutional support: RVO:68145535
Keywords : deformation * microhardness * pulsating water jet
OECD category: Mechanical engineering
Impact factor: 0.644, year: 2018
Method of publishing: Open access
https://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=300933

The article deals with the measurement of micro-hardness of the track by the action of ultrasonic excitation of pulsating water jet. The cumulative effect of liquid matter in the form of droplets concentrated in waveform measurements was provided in horizontal and vertical direction to material core (AISI 304). The material was subjected to pressures of p = 40, 50 and 60 MPa with the actuator working at a frequency of 20,14 kHz and traverse speed v = 1,1 mm/s, v = 0,80 mm/s and v = 0,30 mm/s respectively. The micro hardness measurement was carried out after machining it by pulsating water jet. The values were recorded in the zone located transversally under the trace to the depth of 1,5 mm with 0,1 mm distance between successive points. It was found that the deformation of material was ascertained from the boundary to the outer environment created by pulsating water jet to the inner core of the material. The results indicate that the pressure was the most influential parameter, which was responsible for the deformation strengthening of the material.
Permanent Link: http://hdl.handle.net/11104/0298002