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Microstructure and mechanical properties of forged and rolled rings made from X20Cr13 steel

J. Lulkiewicz orcid id orcid.org/0000-0003-2703-6970 ; Poznań Institute of Technology, Center of Metal Forming, Research Group of Bulk Forming and Automation, Poznań, Poland
A. Kawałek ; Czestochowa University of Technology, Faculty of Production Engineering and Materials Technology, Czestochowa, Poland
B. Pachutko ; Poznań Institute of Technology, Center of Metal Forming, Research Group of Bulk Forming and Automation, Poznań, Poland
T. Bajor ; Czestochowa University of Technology, Faculty of Production Engineering and Materials Technology, Czestochowa, Poland
S. Szkudelski ; Poznań Institute of Technology, Center of Metal Forming, Research Group of Bulk Forming and Automation, Poznań, Poland


Puni tekst: engleski pdf 349 Kb

str. 379-382

preuzimanja: 316

citiraj


Sažetak

The article describes the results of microstructure and mechanical properties tests (according to PN-EN ISO 6892- 1:2016-09 and PN-EN ISO 6507-1:2007), which were obtained on specimens taken from a fragment of a ring rolled in the temperature range from 1220 °C to 950 °C, with dimensions ø965/803 x 164 mm, annealed and heat-treated: quenching at the temperature of 1 030 ± 10 °C in oil and tempering at a temperature of 650 °C. The starting material for rolling was a forging with an opening of ø560/230 x 180 mm. Comparative hardness tests were also performed on specimens taken from the ring after rolling and softening annealing. The Rm>/sub>, Rp0.2 and A indices of the ring fragment after heat treatment, as assumed, were respectively: 942 MPa, 763 MPa and 17 %.

Ključne riječi

X20Cr13 steel; forged and rolled rings; mechanical properties; microstructure

Hrčak ID:

300996

URI

https://hrcak.srce.hr/300996

Datum izdavanja:

3.7.2023.

Posjeta: 897 *