Influence of the thermal history on the phase composition of laser directed energy deposited Ti-8.5 wt% Mo alloy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F22%3AN0000024" target="_blank" >RIV/26316919:_____/22:N0000024 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/22:10446613
Result on the web
<a href="https://doi.org/10.1016/j.matdes.2022.111049" target="_blank" >https://doi.org/10.1016/j.matdes.2022.111049</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matdes.2022.111049" target="_blank" >10.1016/j.matdes.2022.111049</a>
Alternative languages
Result language
angličtina
Original language name
Influence of the thermal history on the phase composition of laser directed energy deposited Ti-8.5 wt% Mo alloy
Original language description
Ti-8.5Mo (wt%) alloy was prepared by laser directed energy deposition (L-DED) from the mixture of cp-Ti and Ti-15Mo powder in the ratio of 50:50 using constant laser power of 600 W. Microstructure of as -printed material was characterized by microhardness mapping, light and scanning electron microscopy employing EDS technique and local X-ray diffraction measurements. In particular, the influence of the baseplate preheating to 500 ? on microstructure evolution was determined. The microstructure of the as-deposited samples consists of columnar grains orientated parallel to the building direction. Volume fraction of alpha, beta and omega phases, and consequently also microhardness, vary for different positions within the sample due to different thermal history during the printing process. Bottom part of the sample contains increased fraction of alpha phase due to longer exposure to temperatures favorable for alpha phase precipitation. Preheating of the baseplate provides additional thermodynamic stabilization of the alpha phase. Numerical model, predicting the temperature evolution in each layer of the sample during deposition and consequently the ultimate phase composition, was developed. The results obtained from the model are consistent with the experimentally observed phase transformations. CO 2022 The Author(s). Published by Elsevier Ltd.
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
20501 - Materials engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
MATERIALS & DESIGN
ISSN
0264-1275
e-ISSN
1873-4197
Volume of the periodical
222
Issue of the periodical within the volume
OCTOBER 2022
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
nestránkováno
UT code for WoS article
000863299700001
EID of the result in the Scopus database
2-s2.0-85136456402