Microstructure of a nickel insert, a special copper alloy, and a cast joint between them-Reference-Cited by-同舟云学术

Microstructure of a nickel insert, a special copper alloy, and a cast joint between them

Published:2022-10-01 Issue:0 Volume:0 Page:
ISSN:1854-7400
Container-title:Materials and Geoenvironment
language:en
Short-container-title:

Author:

Naglič Iztok¹,Kresnik Žan²,Resnik Andrej²,Markoli Boštjan¹

Affiliation:

1. University of Ljubljana , Faculty of Natural Sciences and Engineering , Aškerčeva cesta 12 , Ljubljana , Slovenia

2. OMCO Metals Slovenia d.o.o. , Cesta Žalskega tabora 10 , Žalec , Slovenia

Abstract

Abstract This work deals with the characterisation of the micro-structure of a nickel insert, a special copper alloy and the cast joint between them after their use as a glass manufacturing mould. The microstructure was characterised by optical microscopy, scanning electron microscopy and microanalysis by energy dispersive X-ray spectroscopy. It was found that the nickel insert contained 7 at. % Si and 0.3 at. % Fe. The special copper alloy contains undesirable phases or compounds, including lead, aluminium-based oxides and borides. The borides are either iron-, iron-chromium- or chromium-based with different stoichiometries between metal components and boron. The cast joint between the nickel insert and the special copper alloy has evidence of mixing the two alloys, while only in some areas porosity and oxides prevented the formation of a suitable cast joint. Aluminium-based oxides and some borides could be the cause of the formation of cracks due to their morphology.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics

Link

https://www.sciendo.com/pdf/10.2478/rmzmag-2021-0016

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