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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GBP108%2F12%2FG043" target="_blank" >GBP108/12/G043: Mikro- a nanokrystalické materiály s vysokým podílem rozhraní pro moderní strukturní aplikace, biodegradabilní implantáty a uchovávání vodíku</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials &amp; Design

ISSN

0264-1275

e-ISSN

—

Svazek periodika

132

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

459-466

Kód UT WoS článku

000408688300050

EID výsledku v databázi Scopus

2-s2.0-85024874836