Structure Formation of Polycarbide-Based TiC-VC(NbC)-WC/nano WC Hard Alloys-Reference-Cited by-同舟云学术

Structure Formation of Polycarbide-Based TiC-VC(NbC)-WC/nano WC Hard Alloys

Published:2019-01-18 Issue: Volume:57 Page:35-40
ISSN:2255-9132
Container-title:Boundary Field Problems and Computer Simulation
language:
Short-container-title:BFPCS

Author:

Bodrova Liudmyla,Kramar Halyna,Kovalchuk Yaroslav,Marynenko Sergiy,Koval Ihor

Abstract

The process of structure formation in the alloys of the system TiC-VC(NbC)-NiCr with the alloying additions of the fine or nano WC, depending on the chemical composition and sintering temperature using the optical microscopy, SEM and XRD analysis, is investigated in this paper. The core/rim structure alloys were found irrespective of the amount of tungsten carbide additions. The research suggests that the adding of nano WC causes decrease in carbide grains, redistribution of the elements in the core and rim, and decrease in sintering temperature by 50–100 °С. Tika pētīts struktūru veidošanas process sakausējumos TiC-VC(NbC)-NiCr ar smalku vai nano WC sakausējuma papildinājumiem atkarībā no ķīmiskā sastāva un saķepināšanas temperatūras, izmantojot optisko mikroskopiju, SEM un XRD analīzi. Centru/aptvērumu struktūras sakausējumi tika konstatēti neatkarīgi no volframa karbīda piedevu daudzuma. Pētījums liecina, ka nano WC pievienošana samazina karbīda graudus, elementu pārdali centros un aptvērumos, kā arī notiek saķepināšanās temperatūras samazināšanās par 50–100° С.

Publisher

Riga Technical University

Subject

Materials Science (miscellaneous)

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