Analysis of the defects occurrence on the functional surfaces of individual mould segments for the tyre production from AlSi7Mg0.3Sr

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13420%2F20%3A43895792" target="_blank" >RIV/44555601:13420/20:43895792 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26620/20:PU140096

Result on the web

<a href="https://journals.sagepub.com/doi/full/10.1177/0954406220916479" target="_blank" >https://journals.sagepub.com/doi/full/10.1177/0954406220916479</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/0954406220916479" target="_blank" >10.1177/0954406220916479</a>

Result language

angličtina

Original language name

Analysis of the defects occurrence on the functional surfaces of individual mould segments for the tyre production from AlSi7Mg0.3Sr

Original language description

The basic prerequisite for obtaining a quality casting according to the requirements and specifics of the customer is the production of the mould (in our case using low-pressure die-casting) without the occurrence of surface defects in the form of cracks, scabs, microshrinkages and local depressions. In this case, the mould segments for the tyre production are those which show tiny cracks or scabs on the functional surface of the castings that define the surface quality of the resulting product. It is necessary to analyse these defects in order to eliminate the causes of their formation in the casting process. For this reason, a new alloy of eutectic silumin AlSi9 alloyed with Mg, Mn and modified Sr was prepared in order to improve the fluidity and maintain the mechanical properties of the material up to 250?oC The subject of the study was the analysis of the surface defects of the mould, including the analysis of the chemical composition (energy-dispersive X-ray) and microstructure in the defect area. In order to investigate the subsurface layer of defects, metallographic specimens of cross-sections were prepared by means of mould, which were examined by light and electron microscopy. The detailed microstructural characterization of individual elements was performed on lamellas of the mould studied using transmission electron microscopy. An X-ray diffraction analysis was performed to investigate the residual stress at the defects area very closely. It has been found that a smaller number of defects on the functional surfaces can be obtained by changing the mould position during casting.

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

—

OECD FORD branch

20301 - Mechanical engineering

Project

<a href="/en/project/EF18_069%2F0010045" target="_blank" >EF18_069/0010045: Development of new nano-coatings and micro- coatings on the surface of selected metallic materials? NANOTECH ITI II</a><br>

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

Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science

ISSN

0954-4062

e-ISSN

—

Volume of the periodical

234

Issue of the periodical within the volume

17

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

3474-3483

UT code for WoS article

000524431900001

EID of the result in the Scopus database

2-s2.0-85083266327