Effect of building direction and heat treatment on mechanical properties of Inconel 939 prepared by additive manufacturing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F23%3A00563991" target="_blank" >RIV/68081723:_____/23:00563991 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s12206-022-2101-7" target="_blank" >https://link.springer.com/article/10.1007/s12206-022-2101-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12206-022-2101-7" target="_blank" >10.1007/s12206-022-2101-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of building direction and heat treatment on mechanical properties of Inconel 939 prepared by additive manufacturing

Popis výsledku v původním jazyce

This study investigated the effect of building direction (BD) and three-step heat treatment on the microstructure and mechanical properties of a nickel-based superalloy Inconel 939 produced by additive manufacturing (AM), and it revealed the differences to the conventional cast superalloy. Tensile specimens were printed in horizontal and vertical BDs, and tensile tests were performed at room temperature, 700 °C and 800 °C. Thorough microstructural scrutiny conducted through light and electron microscopy revealed microstructural differences between AM and cast Inconel 939. The columnar grain structure with a preferential orientation of <001> was typical for AM alloy, whereas polyhedral grain without any specific orientation was typical for cast alloy. Experiments showed that the AM material had much better mechanical properties than the cast material. Heat treatment resulted in a formation of a fine dispersion of spherical γ′ nanoprecipitates, triggering a considerable increase in tensile strength and a drop in ductility.

Název v anglickém jazyce

Effect of building direction and heat treatment on mechanical properties of Inconel 939 prepared by additive manufacturing

Popis výsledku anglicky

This study investigated the effect of building direction (BD) and three-step heat treatment on the microstructure and mechanical properties of a nickel-based superalloy Inconel 939 produced by additive manufacturing (AM), and it revealed the differences to the conventional cast superalloy. Tensile specimens were printed in horizontal and vertical BDs, and tensile tests were performed at room temperature, 700 °C and 800 °C. Thorough microstructural scrutiny conducted through light and electron microscopy revealed microstructural differences between AM and cast Inconel 939. The columnar grain structure with a preferential orientation of <001> was typical for AM alloy, whereas polyhedral grain without any specific orientation was typical for cast alloy. Experiments showed that the AM material had much better mechanical properties than the cast material. Heat treatment resulted in a formation of a fine dispersion of spherical γ′ nanoprecipitates, triggering a considerable increase in tensile strength and a drop in ductility.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of Mechanical Science and Technology

ISSN

1738-494X

e-ISSN

1976-3824

Svazek periodika

37

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

KR - Korejská republika

Počet stran výsledku

6

Strana od-do

1071-1076

Kód UT WoS článku

000881936000003

EID výsledku v databázi Scopus

2-s2.0-85141749377