The effect of B and C addition on structure and properties of sintered Mn-Cr-Mo steels

• Autorzy: Szewczyk-Nykiel A. , Nykiel M.
• Języki publikacji: EN

Abstrakty

EN

The effect of boron and/or carbon additions on the microstructure and properties of sintered manganese steels was investigated. These steels were produced based on following powders: pre-alloyed Astaloy CrL and ferromanganese. Sintering was carried out at 1150^oC and 1250^oC in hydrogen atmosphere. The density, hardness and microstructure were investigated. The main objective of this work was to find correlation between sintering temperature and chemical composition of steel and theirs properties. It was shown that both alloying elements and sintering temperature influence the microstructure and properties of sintered manganese steels. When boron or graphite was added, density and also hardness of the Fe-Mn-Cr-Mo steels were increased. Significant change in hardness were related to changes in the microstructure. Boron has a beneficial effect on the densification process, due to faster and more efficient sintering kinetics. In general, it can be observed that by sintering at higher temperature the microstructure and properties were improved.

Słowa kluczowe

EN

powder metallurgy; sintered manganese steels; Astaloy CrL; alloying elements; properties

PL

metalurgia proszków; spiekane stale manganowe; Astaloy CrL; pierwiastki stopowe

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 3 spec.
• Strony: 241--244
• Opis fizyczny: Bilbiogr. 14 poz., il., wykr.

Twórcy

autor

Szewczyk-Nykiel A.

• Cracow University of Technology, Faculty of Mechanical Engineering, Institute of Materials Engineering, Al. Jana Pawła II 37, 31-864, Krakow, Poland

autor

Nykiel M.

• Cracow University of Technology, Faculty of Mechanical Engineering, Institute of Materials Engineering, Al. Jana Pawła II 37, 31-864, Krakow, Poland

Bibliografia

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