An Al-17Fe alloy with high ductility and excellent thermal stability

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43915417" target="_blank" >RIV/60461373:22310/17:43915417 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.matdes.2017.07.027" target="_blank" >http://dx.doi.org/10.1016/j.matdes.2017.07.027</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matdes.2017.07.027" target="_blank" >10.1016/j.matdes.2017.07.027</a>

Result language
angličtina
Original language name
An Al-17Fe alloy with high ductility and excellent thermal stability
Original language description
In this work, Al-17Fe alloys (wt%) were prepared by a combination of different techniques, including centrifugal atomization and mechanical milling, followed by compaction via hot extrusion or advanced spark plasma sintering. Both alloys exhibited a satisfactory hardness of approximately 120 HV 5, which is almost identical to the reference Al-12Si-1Cu-1Mg-1Ni casting alloy. However, when annealed at 400 degrees C for up to 100 h, the investigated alloys showed excellent thermal stability, which manifested as an almost negligible change in the initial hardness. In comparison, the reference Al-12Si-1Cu-1Mg-1Ni alloy softened considerably, with a decrease in hardness by almost 50% to 63 HV 5. Compressive stress-strain tests of compact samples at laboratory temperature or at an elevated temperature of 400 degrees C in the initial state and after 100 h of annealing at 400 degrees C confirmed similar or superior ultimate compressive and compressive yield strengths for both the Al-17Fe alloys compared to the reference Al-12Si-1Cu-1Mg-1Ni alloy, which softened considerably when annealed at the elevated temperatures. More importantly, the centrifugally atomized and hot-extruded Al-17Fe alloy exhibited outstanding ductility, reaching 34%, even when compressively tested at laboratory temperature.
Czech name
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Czech description
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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

Project
<a href="/en/project/GBP108%2F12%2FG043" target="_blank" >GBP108/12/G043: Interface controlled properties of micro/nanocrystalline materials for advanced structural applications, biodegradable implants and hydrogen storage</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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