The influence of cooling rate on the hardness of cast iron with nodular and vermicular graphite

• Autorzy: Soiński M. S. , Zatoń B. , Skoczylas A. , Derda A.
• Języki publikacji: EN

Abstrakty

EN

The paper presents hardness changes for cast iron with nodular and vermicular graphite, determined within the separately cast test blocks. Investigation has comprised cast irons with similar ferrite and pearlite fractions in the metal matrix. The hardness measurements have been performed by Brinell method for samples taken both from an edge and from the centre of a Y block (for nodular cast iron) or of a reversed U block (in the case of vermicular cast iron). Investigations have pertained both to the test parts and to the sinkheads of the test blocks. Hardness measurements have been completed with metallographic examination.

Słowa kluczowe

EN

mechanical properties; hardness; cooling rate; nodular cast iron; vermicular cast iron

PL

właściwości mechaniczne; twardość; szybkość chłodzenia; chłodzenie; żeliwo sferoidalne; żeliwo wermikularne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2008
• Tom: Vol. 8, iss. 4
• Strony: 199--204
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Soiński M. S.

autor

Zatoń B.

autor

Skoczylas A.

autor

Derda A.

• Technical University of Częstochowa, Department of Foundry, ul. Armii Krajowej 19, 42-200 Częstochowa, Poland,

Bibliografia

• [1] C. Podrzucki, C. Kalata, Cast iron metallurgy and casting, Śląsk, Katowice (1976) (in Polish).
• [2] T. Warchala, Cast iron metallurgy and casting, Part 1: Cast iron structure and properties, TU Częstochowa (1988) (in Polish).
• [3] S. Błażewski, J. Mikoszewski, The maesurements of the hardness of metals, WNT, Warszawa (1981) (in Polish).
• [4] C. Podrzucki, Cast iron. Structure, properties, applications, vol. 2, ZG STOP, Cracow (1991) (in Polish).
• [5] The Sorelmetal Book of Ductile Iron, Metals & Minerals Sp. z o.o., Warsaw (2006) (in Polish).
• [6] M. S. Soiński, A. Derda, The influence of selected elements on mechanical properties of ferritic ductile iron, Archives of Foundry Engineering, Special Edition, vol. 8, No. 1 (2008) 303-308.
• [7] M. S. Soiński, A. Derda, The influence of selected elements on mechanical properties of ductile iron EN-GJS-500-7, Archives of Foundry Engineering, vol. 8, No. 3 (2008) 149-152.
• [8] M. S. Soiński, R. Muzyka, Impact strength of pearlitic-ferritic nodular cast iron, Archives of Foundry, vol. 6, No. 19 (2006) 295 - 300 (in Polish).
• [9] Polish Standard PN-EN ISO 6506-1, Hardness measuring by Brinell method.
• [10] Engineer Handbook - Casting, vol. II, WNT, Warsaw (1986) (in Polish).
• [11] Polish Standard PN-EN ISO 945, Cast iron. Determining of features of graphite precipitates (in Polish).
• [12] Polish Standard PN-75/H-04661, Grey, nodular, and ductile cast iron. Metallographic examination. Microstructure classification (in Polish).
• [13] S. Ostasiewicz, Z. Rusnak, U. Siedlecka, Statistics. Elements of theory and exercises, Oskar Lange Economic Academy, Wrocław (1998).