Heat treatment of cast steel using normalization and intercritical annealing

• Autorzy: Golański G. , Stachura S. , Kupczyk J. , Kucharska-Gajda B.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the influence of heat treatment, normalization with subsequent ([alpha]+[gamma]) annealing on the structure and properties of G21CrMoV4-6 (L21HMF) cast steel, long term serviced at the temp. of 540 oC. Applying of heat treatment ensures obtaining of regenerated ferritic – pearlitic structure with pearlite precipitations mainly on grain boundaries. such a structure formed after slow cooling at two-phase range, ensures a significant impact energy growth with mechanical properties similar to the properties after service. It has also been proved that tempering at temperatures recommended by the norm does not always allow to obtain the required minimum impact energy.

Słowa kluczowe

EN

heat treatment; cast steel; ductility

PL

obróbka cieplna; staliwo; plastyczność

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2007
• Tom: Vol. 7, iss. 1
• Strony: 123--126
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Golański G.

autor

Stachura S.

autor

Kupczyk J.

autor

Kucharska-Gajda B.

• Institute of Materials Engineering, Czestochowa University of Technology,

Bibliografia

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• [4] Stachura S., Stradomski Z., Golański G., - Phosphorus in ferroalloys, Hutnik - Wiadomości Hutnicze, 5, 2001, 184 - 193 (in Polish)
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• [8] Golański G., Stachura S., Gajda B., Kupczyk J., - Influence of the cooling rate on structure and mechanical properties of L21HMF cast steel after regenerative heat treatment, Archives of Foundary, 6,21, 2006, 143 - 150 (in Polish)
• [9] Stachura S., Golanski G., Kupczyk J. - not published
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• [14] PN - 89/ H - 83157 - Steel castings creep resistant at elevated temperatures. Grades ( in Polish)
• [15] Golański G., Kupczyk J., Stachura S., Gajda B., - Regenerative heat treatment of Cr - Mo - V cast steel after long term serviced, Materials Science and Engineering", 3, 2006, 147 - 150 (in Polish).