The Influence of Heat Treatment and Chemical Composition on the Structure and Mechanical Properties of Thick-walled Ductile Iron Castings

• Autorzy: Trepczyńska-Łent M.

Identyfikatory

DOI

10.24425/afe.2018.125171

• Języki publikacji: EN

Abstrakty

EN

In this work, the effects of 75 mm thick cast iron, (casting mould YIV) composition (Cu) and heat treatment were investigated on the microstructure and mechanical properties (hardness, elongation, tensile strength, yield strength) of ductile iron castings. As a result of adding Cu, the amount of pearlite is at 80% reduces of amount of ferrite. Normalizing of non-alloy cast iron increases the amount of pearlite to 70%. It also, increases tensile strength (659 MPa) and hardness (248 HB). Studied metallographic crossections were made from the grip sections of the tensile specimens. The structure composition and the characteristics of graphite were determined by computer image analysis. Measurements of graphite of non-alloy cast iron after normalizing and in cooper cast iron indicate the approximate amount of precipitates of graphite and their approximate average diameters. The applied normalizing and the additive alloy (Cu) were established to give comparable mechanical properties and structure of matrix in thick-walled castings.

Słowa kluczowe

EN

thick walled casting; cast iron; casting structure; mechanical properties

PL

odlew grubościenny; żeliwo; struktura stopu; właściwości mechaniczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 4
• Strony: 71--76
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wykr.

Twórcy

autor

Trepczyńska-Łent M.

• Department of Materials Science and Engineering, Mechanical Engineering Faculty, UTP University of Science and Technology, al. prof. S. Kaliskiego 7, 85-796 Bydgoszcz, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).