Materials Engineering Analysis of 26NiCrMoV14-5 Steel For Machinery Component Manufacture

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25870807%3A_____%2F16%3AN0000017" target="_blank" >RIV/25870807:_____/16:N0000017 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/16:86099880

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Materials Engineering Analysis of 26NiCrMoV14-5 Steel For Machinery Component Manufacture

Popis výsledku v původním jazyce

In connection with requirements for improving the mechanical properties of structural steels for machinery component manufacture, it is necessary to take into account higher requirements for their metallurgical cleanliness. Metallurgical cleanliness is a significant factor affecting the steel quality. Based on the knowledge of chemical composition, we can use two critical criteria for evaluating the metallurgical cleanliness: J-factor or more precise Bruscato X-factor that selectively evaluates effect of various harmful additions. These factors evaluate steels exposed to superposition stress intensity at high temperatures in the long term. Contamination of steel by excessive presence of inclusions is a major cause leading to occurrence of degradation processes and thus to product deterioration. It is common knowledge that formation and composition of inclusions depends on chemical composition of steel and its deoxidizing and alloying method. Oxygen content and modification of inclusions in steel processing outside the furnace using calcium also have a significant impact on inclusion type and character. In order to ensure the required steel cleanliness, it is necessary to follow correct technological production method. Occurrence of breakdowns of the respective equipment in course of steel production and processing impair the steel cleanliness and quality, thus causing and developing degradation processes. The materials engineering analysis was conducted with a damaged rotor forging made of 26NiCrMoV14-5“V“steel, an ingot with a weight of 70 tons.

Název v anglickém jazyce

Materials Engineering Analysis of 26NiCrMoV14-5 Steel For Machinery Component Manufacture

Popis výsledku anglicky

In connection with requirements for improving the mechanical properties of structural steels for machinery component manufacture, it is necessary to take into account higher requirements for their metallurgical cleanliness. Metallurgical cleanliness is a significant factor affecting the steel quality. Based on the knowledge of chemical composition, we can use two critical criteria for evaluating the metallurgical cleanliness: J-factor or more precise Bruscato X-factor that selectively evaluates effect of various harmful additions. These factors evaluate steels exposed to superposition stress intensity at high temperatures in the long term. Contamination of steel by excessive presence of inclusions is a major cause leading to occurrence of degradation processes and thus to product deterioration. It is common knowledge that formation and composition of inclusions depends on chemical composition of steel and its deoxidizing and alloying method. Oxygen content and modification of inclusions in steel processing outside the furnace using calcium also have a significant impact on inclusion type and character. In order to ensure the required steel cleanliness, it is necessary to follow correct technological production method. Occurrence of breakdowns of the respective equipment in course of steel production and processing impair the steel cleanliness and quality, thus causing and developing degradation processes. The materials engineering analysis was conducted with a damaged rotor forging made of 26NiCrMoV14-5“V“steel, an ingot with a weight of 70 tons.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/LO1203" target="_blank" >LO1203: Regionální materiálově technologické výzkumné centrum - Program udržitelnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

33th Inter. Colloquium: Advanced Manufacturing and Repair Technologies in Vehicle Industry

ISBN

978-80-554-1214-6

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

37-40

Název nakladatele

Faculty of Mechanical Engineering, University of Žilina, Slovakia

Místo vydání

Žilina

Místo konání akce

Zuberec

Datum konání akce

1. 1. 2016

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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