Effects of Sintering Conditions on Structures and Properties of Sintered Tungsten Heavy Alloy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F20%3A10245898" target="_blank" >RIV/61989100:27360/20:10245898 - isvavai.cz</a>

Result on the web

<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>

Result language

angličtina

Original language name

Effects of Sintering Conditions on Structures and Properties of Sintered Tungsten Heavy Alloy

Original language description

Probably the most advantageous fabrication technology of tungsten heavy alloys enabling the achievement of required performance combines methods of powder metallurgy and processing by intensive plastic deformation. Since the selected processing conditions applied for each individual processing step affect the final structures and properties of the alloys, their optimization is of the utmost importance. This study deals with thorough investigations of the effects of sintering temperature, sintering time, and subsequent quenching in water on the structures and mechanical properties of a 93W6Ni1Co tungsten heavy alloy. The results showed that sintering at temperatures of or above 1525 degrees C leads to formation of structures featuring W agglomerates surrounded by the NiCo matrix. The sintering time has non-negligible effects on the microhardness of the sintered samples as it affects the diffusion and structure softening phenomena. Implementation of quenching to the processing technology results in excellent plasticity of the green sintered and quenched pieces of almost 20%, while maintaining the strength of more than 1000 MPa.

Czech name

—

Czech description

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Type

J_imp - 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

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2020

Confidentiality

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

Name of the periodical

Materials

ISSN

1996-1944

e-ISSN

—

Volume of the periodical

13

Issue of the periodical within the volume

10

Country of publishing house

CH - SWITZERLAND

Number of pages

11

Pages from-to

2338

UT code for WoS article

000539277000130

EID of the result in the Scopus database

2-s2.0-85085591315