Influence of milling time on the microstructure of immiscible Cu-Fe-Co-W alloy prepared by powder metallurgy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F20%3APU138142" target="_blank" >RIV/00216305:26210/20:PU138142 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.confer.cz/metal/2020/3613-influence-of-milling-time-on-the-microstructure-of-immiscible-cu-fe-co-w-alloy-prepared-by-powder-metallurgy" target="_blank" >https://www.confer.cz/metal/2020/3613-influence-of-milling-time-on-the-microstructure-of-immiscible-cu-fe-co-w-alloy-prepared-by-powder-metallurgy</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/metal.2020.3613" target="_blank" >10.37904/metal.2020.3613</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of milling time on the microstructure of immiscible Cu-Fe-Co-W alloy prepared by powder metallurgy

Popis výsledku v původním jazyce

The immiscible Cu-Fe system is often used as a base for new advanced alloys. In the current study, three batches of the same immiscible (Cu70Fe15Co15)89W11 alloy were prepared by mechanical alloying with different milling time and subsequent SPS consolidation. The effect of milling time on the microstructure and the properties of the powder and bulk samples was subject to study. The microstructure of the milled powder samples consists of FCC Cu-based supersaturated solid solution and particles of pure W, which did dissolve only partially. During the SPS consolidation, Cu-based supersaturated solid solution partially decomposed and (Fe, Co)-based solid solution, (Fe, Co)7W6 phase, and pure Cu phase were formed. Increasing the milling time results in the finer microstructure of the consolidated samples and in the enhancement of their hardness. The maximum hardness achieved is 395HV1. The longer milling time has a negative effect of decrease in relative density of consolidated samples, caused by larger size of the milled powders

Název v anglickém jazyce

Influence of milling time on the microstructure of immiscible Cu-Fe-Co-W alloy prepared by powder metallurgy

Popis výsledku anglicky

The immiscible Cu-Fe system is often used as a base for new advanced alloys. In the current study, three batches of the same immiscible (Cu70Fe15Co15)89W11 alloy were prepared by mechanical alloying with different milling time and subsequent SPS consolidation. The effect of milling time on the microstructure and the properties of the powder and bulk samples was subject to study. The microstructure of the milled powder samples consists of FCC Cu-based supersaturated solid solution and particles of pure W, which did dissolve only partially. During the SPS consolidation, Cu-based supersaturated solid solution partially decomposed and (Fe, Co)-based solid solution, (Fe, Co)7W6 phase, and pure Cu phase were formed. Increasing the milling time results in the finer microstructure of the consolidated samples and in the enhancement of their hardness. The maximum hardness achieved is 395HV1. The longer milling time has a negative effect of decrease in relative density of consolidated samples, caused by larger size of the milled powders

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

Metal 2020

ISBN

978-80-87294-97-0

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

1092-1097

Název nakladatele

TANGER Ltd.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

23. 6. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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