Wide - ranging influence of mischmetal on properties of GP240GH cast steel

• Autorzy: Kasińska J. , Gajewski M.
• Języki publikacji: EN

Abstrakty

EN

This paper presents influence of rare earth metals (REM) on the properties of GP240GH cast carbon steel. The research has been performed on successive industrial melts. Each time ca 2000 kg of liquid metal was modified. The rare earth metals were put into the ladle during tapping of heat melt from the furnace. Because of this the amount of sulphur in the cast steel was decreased and the non-metallic inclusion morphology was significantly changed. It was found that non metallic inclusions the cracking mechanism of Charpy specimens and the impact strength were all changed. The following properties were tested: mechanical properties [...], plastic properties (necking, elongation) and impact strength (SCI). In the three-point bend test the KJC stress intensity factor was evaluated.

Słowa kluczowe

EN

cast carbon steel; REM; mechanical properties; non-metallic inclusions

PL

staliwo węglowe; REM; właściwości mechaniczne; wtrącenia niemetaliczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2012
• Tom: Vol. 12, iss. 4
• Strony: 85--94
• Opis fizyczny: Bibliogr. 11 poz., rys., tab., wykr.

Twórcy

autor

Kasińska J.

autor

Gajewski M.

• Department of Metal Science and Materials Technology, Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, Poland,

Bibliografia

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• [2] Luniov V. V. (2003): Non metallic inclusions and properties of cast steels (in Polish), Przegląd Odlewnictwa, vol.53, No 9, pp.299-304.
• [3] Blicharski M. (2004): Materials engineering (in Polish). Stal. Wydawnictwo Naukowo - Techniczne, Warszawa.
• [4] Lis T., Różański P. (2005): Engineering of non metallic inclusions in liquid steel (in Polish), Hutnik - Wiadomości hutnicze, No5, pp, 259-264.
• [5] Long - Mei Wang, i in. (2008): Study of application of rare elements in advanced low alloy steels. Journal of Alloys and Compounds, No 451, pp.534-537.
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• [8] ASTM E 1737-96 Standard Test Method for J-Integral Characterization of Fracture Toughness American Society for Testing and Materials (ASTM), Pensylwania.
• [9] PN 88/H-04336 Method of testing crack resistance by determining the critical value of J, JC integral, Polish Committee For Standarization (1988), (in Polish).
• [10] Heon Young Ha, ChanJin Park, HyukSang Kwon (2006): Effect of misch metal on the formation of non - metallic inclusions in 25% Cr duplex stainless steels, Scripta Materialia, vol.55, 991-994.
• [11] Zhenfeng Zhan, Gaoyong Lin, Shenghua Zhang, Jia Zhou (2007): Effect of Ce on microstructure and mechanical properties of pure copper, Materials Science and Engineering A, vol.457, 313-318.