Microstructure evaluation of new ODS alloys with Fe-Al matrix and Al2O3 particles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F17%3A43953397" target="_blank" >RIV/49777513:23210/17:43953397 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081723:_____/17:00511061

Výsledek na webu

<a href="https://dl.acm.org/citation.cfm?id=3178273" target="_blank" >https://dl.acm.org/citation.cfm?id=3178273</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1145/3178264.3178273" target="_blank" >10.1145/3178264.3178273</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Microstructure evaluation of new ODS alloys with Fe-Al matrix and Al2O3 particles

Popis výsledku v původním jazyce

ODS steels are used for their very good mechanical properties at high temperature and low-cost production in comparison with other super alloys (ex. nickel super alloys). The paper describes a new group of Fe-Al Oxide Dispersion Strengthened (ODS) alloys with fine Al2O3 precipitates. ODS ferritic steels are high temperature creep resistant materials, which are intended to be applied more in the future industry. The steel was prepared by powder metallurgy under mechanical alloying and hot consolidation. To describe the stability of this material, annealing with different temperatures and holding times were carried out. The results show that the fine-grained microstructure is stable during long-term annealing up to 800 °C. At temperatures over 1000 °C, the grain structure coarsens by abnormal grain growth by keeping the size of oxides unchanged. Besides, the grain structure of the material is improved by differing the annealing time and temperature. The obtained structures were analyzed by optical and scanning electron microscopy. The mechanical properties and hardness were measured by tensile test at different temperatures.

Název v anglickém jazyce

Microstructure evaluation of new ODS alloys with Fe-Al matrix and Al2O3 particles

Popis výsledku anglicky

ODS steels are used for their very good mechanical properties at high temperature and low-cost production in comparison with other super alloys (ex. nickel super alloys). The paper describes a new group of Fe-Al Oxide Dispersion Strengthened (ODS) alloys with fine Al2O3 precipitates. ODS ferritic steels are high temperature creep resistant materials, which are intended to be applied more in the future industry. The steel was prepared by powder metallurgy under mechanical alloying and hot consolidation. To describe the stability of this material, annealing with different temperatures and holding times were carried out. The results show that the fine-grained microstructure is stable during long-term annealing up to 800 °C. At temperatures over 1000 °C, the grain structure coarsens by abnormal grain growth by keeping the size of oxides unchanged. Besides, the grain structure of the material is improved by differing the annealing time and temperature. The obtained structures were analyzed by optical and scanning electron microscopy. The mechanical properties and hardness were measured by tensile test at different temperatures.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA17-01641S" target="_blank" >GA17-01641S: Zlepšení vlastností a komplexní charakterizace nové generace oxidy precipitačně vytvrzených ocelí na bázi Fe-Al-O</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of International Conference on Industrial Design Engineering, ICIDE 2017

ISBN

978-1-4503-4866-9

ISSN

—

e-ISSN

—

Počet stran výsledku

5

Strana od-do

11-15

Název nakladatele

Association for Computing Machinery

Místo vydání

New York

Místo konání akce

Dubai, SAE

Datum konání akce

29. 12. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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