Evaluation of Microstructure and Tribological Properties of GX120Mn13 and GX120MnCr18-2 Cast Steels

• Autorzy: Kalandyk B. , Zapała R. , Kasińska J. , Madej M.

Identyfikatory

DOI

10.24425/afe.2021.138681

• Języki publikacji: EN

Abstrakty

EN

The results of microstructure examinations and hardness measurements carried out on two selected grades of high-manganese cast steel with an austenitic matrix, i.e. GX120Mn13 and GX120MnCr18-2, are presented. The examinations of the cast steel microstructure have revealed that the matrix of the GX120MnCr18-2 cast steel contains the precipitates of complex carbides enriched in Cr and Mn with two different morphologies. The presence of these precipitates leads to an increase in hardness by approx. 30 HB compared to the GX120Mn13 cast steel. Samples cut out from the tested materials were loaded (10 strokes) with an energy of 53 J, and then a ball-on-disc tribological test was performed. The test was carried out in reciprocating motion under technically dry friction conditions. While analyzing the obtained results of the microstructure, hardness, and abrasion tests, it was found that the presence of the hard carbide precipitates in the plastic matrix of the tested GX120MnCr18-2 cast steel promoted an increase in hardness, but also led to chipping of these particles from the alloy matrix, thus contributing to micro-cutting during friction.

Słowa kluczowe

EN

high manganese cast steel; microstructure; hardness; wear resistance

PL

staliwo wysokomanganowe; mikrostruktura; twardość; odporność na zużycie

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2021
• Tom: Vol. 21, iss. 4
• Strony: 77--81
• Opis fizyczny: Bibliogr. 25 poz., fot., tab.

Twórcy

autor

Kalandyk B.

• AGH University of Science and Technology, Department of Cast Alloys and Composites Engineering, Faculty of Foundry Engineering, Krakow, Poland

autor

Zapała R.

• AGH University of Science and Technology, Department of Cast Alloys and Composites Engineering, Faculty of Foundry Engineering, Krakow, Poland

autor

Kasińska J.

• Kielce University of Technology, Poland

autor

Madej M.

• Kielce University of Technology, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).