Microstructural instability of L-PBF Co-28Cr-6Mo alloy at elevated temperatures
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00546266" target="_blank" >RIV/68378271:_____/21:00546266 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/21:43922824
Result on the web
<a href="https://doi.org/10.1016/j.addma.2021.102025" target="_blank" >https://doi.org/10.1016/j.addma.2021.102025</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.addma.2021.102025" target="_blank" >10.1016/j.addma.2021.102025</a>
Alternative languages
Result language
angličtina
Original language name
Microstructural instability of L-PBF Co-28Cr-6Mo alloy at elevated temperatures
Original language description
So far, little is known about the thermal stability of Co-28Cr-6Mo alloy when produced by laser powder bed fusion (L-PBF), one of the mostly used AM technologies. In the present study, we reveal the instability of this material already at temperatures above 673 K. Material hardening accompanied with a significant loss of plasticity is caused by the breakdown of fine cellular microstructure with intercellular Mo segregation, precipitation of σ-phase and phase transformation of the matrix. Detail characterization by transmission electron microscopy was carried out for the maximum hardness state obtained after annealing the alloy at 1173 K for 5 h. The important findings of this study, representing an operational risk for L-PBF Co-28Cr-6Mo alloy, call for subsequent research into suitable heat treatment that would induce the stability of the material.
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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/LM2018110" target="_blank" >LM2018110: CzechNanoLab research infrastructure</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Additive Manufacturing
ISSN
2214-8604
e-ISSN
2214-7810
Volume of the periodical
44
Issue of the periodical within the volume
Aug.
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
16
Pages from-to
102025
UT code for WoS article
000674619700002
EID of the result in the Scopus database
2-s2.0-85104508245