Effects of Sintering Conditions on Structures and Properties of Sintered Tungsten Heavy Alloy release_4g6vegc24fbc7owtmgthka6beq

by Lenka Kunčická, Radim Kocich, Zuzana Klečková

Published in Materials by MDPI AG.

2020   Volume 13, Issue 10, p2338

Abstract

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 °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.
In application/xml+jats format

Archived Files and Locations

application/pdf  5.0 MB
file_4b6hpgns7zh2ti4mbpjrowh6xu
res.mdpi.com (publisher)
web.archive.org (webarchive)

Web Captures

https://www.mdpi.com/1996-1944/13/10/2338/htm
2022-05-02 07:46:33 | 53 resources
webcapture_q7sqn3cwznhunkow7bm6664mci
web.archive.org (webarchive)
Read Archived PDF
Preserved and Accessible
Type  article-journal
Stage   published
Date   2020-05-19
Language   en ?
DOI  10.3390/ma13102338
PubMed  32438710
Container Metadata
Open Access Publication
In DOAJ
In ISSN ROAD
In Keepers Registry
ISSN-L:  1996-1944
Work Entity
access all versions, variants, and formats of this works (eg, pre-prints)
Catalog Record
Revision: 7db7b787-bbb1-4a9c-85c6-6b7795088fda
API URL: JSON