Effect of heat treatment and hot isostatic pressing on the structure and mechanical properties of Inconel 939 manufactured via casting and LPBF
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F26%3A0197922" target="_blank" >RIV/00216305:26210/26:0197922 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27230/25:10259212
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S152661252500502X" target="_blank" >https://www.sciencedirect.com/science/article/pii/S152661252500502X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jmapro.2025.04.082" target="_blank" >10.1016/j.jmapro.2025.04.082</a>
Alternative languages
Result language
angličtina
Original language name
Effect of heat treatment and hot isostatic pressing on the structure and mechanical properties of Inconel 939 manufactured via casting and LPBF
Original language description
The powder bed fusion method is one of the metal additive technologies, which can be used for the fabrication of difficult-to-process materials, such as cobalt and nickel superalloys. Inconel 939 is an example of a nickel superalloy widely used in constructions subjected to high temperatures such as industrial gas turbines. The current paper studies the effect of heat treatment and Hot Isostatic Pressing (HIP) on the structure and mechanical properties of additively manufactured (AM) Inconel 939. Mechanical properties i.e., tensile yield strength, ultimate tensile strength, and creep resistance were observed after the heat treatment (comprised of annealing and subsequent aging), HIP, and compared to the conventionally casted material. HIP post-process caused an increase of 5.73 % and 3.81 % in ultimate tensile strength at the room temperature as well as at the elevated temperature. A detailed analysis of the microstructure of AM and casting samples via light and electron microscopy was performed. The maximum grain sizes in AM samples were similar (122.9 μm and 127.2 μm in the axis and periphery, respectively), while the grain size in casting samples exhibited a mean equivalent circle diameter of 440 μm in the axial region and 398 μm in the vicinity of the peripheral region.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Manufacturing Processes
ISSN
1526-6125
e-ISSN
2212-4616
Volume of the periodical
145
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
556-570
UT code for WoS article
001494057600001
EID of the result in the Scopus database
2-s2.0-105003799879