Effects of Sintering Conditions on Structures andnProperties of Sintered Tungsten Heavy Alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F20%3A00524654" target="_blank" >RIV/68081723:_____/20:00524654 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/1996-1944/13/10/2338" target="_blank" >https://www.mdpi.com/1996-1944/13/10/2338</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma13102338" target="_blank" >10.3390/ma13102338</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of Sintering Conditions on Structures andnProperties of Sintered Tungsten Heavy Alloy

Popis výsledku v původním jazyce

Probably the most advantageous fabrication technology of tungsten heavy alloys enablingnthe achievement of required performance combines methods of powder metallurgy and processingnby intensive plastic deformation. Since the selected processing conditions applied for each individualnprocessing step a ect the final structures and properties of the alloys, their optimization is of the utmostnimportance. This study deals with thorough investigations of the e ects of sintering temperature,nsintering time, and subsequent quenching in water on the structures and mechanical properties ofna 93W6Ni1Co tungsten heavy alloy. The results showed that sintering at temperatures of or aboven1525 C leads to formation of structures featuringWagglomerates surrounded by the NiCo matrix.nThe sintering time has non-negligible e ects on the microhardness of the sintered samples as it a ectsnthe di usion and structure softening phenomena. Implementation of quenching to the processingntechnology results in excellent plasticity of the green sintered and quenched pieces of almost 20%,nwhile maintaining the strength of more than 1000 MPa.

Název v anglickém jazyce

Effects of Sintering Conditions on Structures andnProperties of Sintered Tungsten Heavy Alloy

Popis výsledku anglicky

Probably the most advantageous fabrication technology of tungsten heavy alloys enablingnthe achievement of required performance combines methods of powder metallurgy and processingnby intensive plastic deformation. Since the selected processing conditions applied for each individualnprocessing step a ect the final structures and properties of the alloys, their optimization is of the utmostnimportance. This study deals with thorough investigations of the e ects of sintering temperature,nsintering time, and subsequent quenching in water on the structures and mechanical properties ofna 93W6Ni1Co tungsten heavy alloy. The results showed that sintering at temperatures of or aboven1525 C leads to formation of structures featuringWagglomerates surrounded by the NiCo matrix.nThe sintering time has non-negligible e ects on the microhardness of the sintered samples as it a ectsnthe di usion and structure softening phenomena. Implementation of quenching to the processingntechnology results in excellent plasticity of the green sintered and quenched pieces of almost 20%,nwhile maintaining the strength of more than 1000 MPa.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Materials

ISSN

1996-1944

e-ISSN

—

Svazek periodika

13

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

11

Strana od-do

2338

Kód UT WoS článku

000539277000130

EID výsledku v databázi Scopus

2-s2.0-85085591315