Laser additive manufacturing of iron aluminides strengthened by ordering, borides or coherent Heusler phase
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10370263" target="_blank" >RIV/00216208:11320/17:10370263 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.matdes.2016.12.046" target="_blank" >http://dx.doi.org/10.1016/j.matdes.2016.12.046</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matdes.2016.12.046" target="_blank" >10.1016/j.matdes.2016.12.046</a>
Alternative languages
Result language
angličtina
Original language name
Laser additive manufacturing of iron aluminides strengthened by ordering, borides or coherent Heusler phase
Original language description
Laser Additive Manufacturing (LAM) is a near-net-shape processing technology well-suited for the production of parts from intermetallic alloys. Three different iron aluminide alloys have been processed by Selective Laser Melting (SLM) and Laser Metal Deposition (LMD). The alloys selected for LAM represent three different strategies for strengthening iron aluminides at high temperatures: Increase of the ordering temperature D0(3) <-> B2 (Fe-30Al-10Ti; all compositions in at.%), precipitation of borides (Fe-30Al-5Ti-0.7B) and generation of coherent A2 + L2(1) microstructures (Fe-22Al-5Ti). It is shown that all three alloying strategies established from as-cast alloys can also be realised through both LAM processes, generating defect free and dense (>99.5%) samples. Yield stress and compressive creep strength also match that of the as-cast alloys above 600 degrees C, while at lower temperatures in some cases higher yield stresses are observed. In addition, the yield stress below 600 degrees C may also depend on the building direction and may change after a heat treatment. No general improvement of ductility is observed, specifically in case of Fe-30Al-10Ti, where the grain size in the LAM processed samples is one magnitude lower than in the as-cast alloy. However, depending on building direction and subsequent heat treatment some samples become ductile at quite low temperatures, which at least in some cases may be explained by the internal stresses measured by XRD.
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
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials and Design
ISSN
0264-1275
e-ISSN
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Volume of the periodical
116
Issue of the periodical within the volume
neuveden
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
14
Pages from-to
481-494
UT code for WoS article
000393726600053
EID of the result in the Scopus database
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