ANALYSIS OF FOUNDRY STRESSES IN IRON ALLOY CASTINGS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F21%3A10249177" target="_blank" >RIV/61989100:27360/21:10249177 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

ANALYSIS OF FOUNDRY STRESSES IN IRON ALLOY CASTINGS

Popis výsledku v původním jazyce

The paper analyses the magnitude of foundry stresses in cast iron and steel castings. For the analysis of foundry stresses, a new methodology for measuring the level of residua! stresses on modified test bodies was proposed to test the propensity of iron alloys to hot-cracks and cold-cracks. The magnitude of the residua! stresses is determined based on the measured values of the relative shrinkage between the different bar diameters of the test body. To verify the proposed relative shrinkage measurement methodology, the hot-cracks and cold-cracks test body was compared with its modified version. Relative shrinkage (RS) is defined as the difference of lengths I = RS of bars of different diameter-modules on the modified version of the standard test body. Based on the measured RS values, the magnitude of residua! stress in the test castings was calculated. According to the relative shrinkage rate and the known elastic moduli of the cast alloys, the potential residua! stress in the test castings was calculated. The magnitude of the stresses on castings of graphitic cast irons, non-alloy and alloy steels were evaluated.

Název v anglickém jazyce

ANALYSIS OF FOUNDRY STRESSES IN IRON ALLOY CASTINGS

Popis výsledku anglicky

The paper analyses the magnitude of foundry stresses in cast iron and steel castings. For the analysis of foundry stresses, a new methodology for measuring the level of residua! stresses on modified test bodies was proposed to test the propensity of iron alloys to hot-cracks and cold-cracks. The magnitude of the residua! stresses is determined based on the measured values of the relative shrinkage between the different bar diameters of the test body. To verify the proposed relative shrinkage measurement methodology, the hot-cracks and cold-cracks test body was compared with its modified version. Relative shrinkage (RS) is defined as the difference of lengths I = RS of bars of different diameter-modules on the modified version of the standard test body. Based on the measured RS values, the magnitude of residua! stress in the test castings was calculated. According to the relative shrinkage rate and the known elastic moduli of the cast alloys, the potential residua! stress in the test castings was calculated. The magnitude of the stresses on castings of graphitic cast irons, non-alloy and alloy steels were evaluated.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20500 - Materials engineering

Projekt

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Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

METAL 2021 : conference proceedings : 30th Anniversary International Conference on Metallurgy and Materials : May 26 - 28, 2021, Brno, Czech Republic, EU

ISBN

978-80-87294-99-4

ISSN

2694-9296

e-ISSN

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Počet stran výsledku

7

Strana od-do

27-33

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

26. 5. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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