High Temperature Stability of an Al–Zr–Ti Alloy Prepared using Gas Atomization and Spark Plasma Sintering Technology

Kód výsledku v IS VaVaI

RIV/61389021:_____/18:00503772 - isvavai.cz

Výsledek na webu

http://przyrbwn.icm.edu.pl/APP/PDF/134/app134z3p59.pdf

DOI - Digital Object Identifier

10.12693/APhysPolA.134.876

Jazyk výsledku

angličtina

Název v původním jazyce

High Temperature Stability of an Al–Zr–Ti Alloy Prepared using Gas Atomization and Spark Plasma Sintering Technology

Popis výsledku v původním jazyce

The aim of this study was to prepare an aluminium alloy with high temperature stability using the powder metallurgical route. Gas atomized powder of the Al–Zr–Ti alloy was consolidated by the spark plasma sintering (SPS) technology. The fine grained structure (grain size between 2 and 3 µm) observed in the gas atomized powder was retained after sintering both at 425◦C and 550◦C. The microhardness of 49 HV observed in the gas atomized powder was increased up to about 100 HV in the SPS compacts. Precipitation of the Al3(Zr,Ti) phase during sintering can explain this strengthening. The materials stability was tested by annealing at temperatures above 450◦C. The grain size remained stable even after 10 h of annealing. A decrease in microhardness by about 20% can be attributed especially to the formation of the stable modification of the Al3(Zr,Ti) phase.

Název v anglickém jazyce

High Temperature Stability of an Al–Zr–Ti Alloy Prepared using Gas Atomization and Spark Plasma Sintering Technology

Popis výsledku anglicky

The aim of this study was to prepare an aluminium alloy with high temperature stability using the powder metallurgical route. Gas atomized powder of the Al–Zr–Ti alloy was consolidated by the spark plasma sintering (SPS) technology. The fine grained structure (grain size between 2 and 3 µm) observed in the gas atomized powder was retained after sintering both at 425◦C and 550◦C. The microhardness of 49 HV observed in the gas atomized powder was increased up to about 100 HV in the SPS compacts. Precipitation of the Al3(Zr,Ti) phase during sintering can explain this strengthening. The materials stability was tested by annealing at temperatures above 450◦C. The grain size remained stable even after 10 h of annealing. A decrease in microhardness by about 20% can be attributed especially to the formation of the stable modification of the Al3(Zr,Ti) phase.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

GA15-15609S: Ultra-jemnozrnné a nanokrystalické kovové materiály s vysokou pevností připravené slinovaním pulzním elektrickým proudem

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Acta Physica Polonica A

ISSN

1898-794X

e-ISSN

—

Svazek periodika

134

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

5

Strana od-do

876-880

Kód UT WoS článku

000453257500060

EID výsledku v databázi Scopus

2-s2.0-85058939133