Diagnostics of Laser remelting of HVOF sprayed stellite coatings using an infrared camera

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F17%3A43932395" target="_blank" >RIV/49777513:23640/17:43932395 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.surfcoat.2016.12.118" target="_blank" >http://dx.doi.org/10.1016/j.surfcoat.2016.12.118</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.surfcoat.2016.12.118" target="_blank" >10.1016/j.surfcoat.2016.12.118</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Diagnostics of Laser remelting of HVOF sprayed stellite coatings using an infrared camera

Popis výsledku v původním jazyce

Thermally sprayed coatings can be remelted to improve their microstructure and functional properties. Among other remelting technologies, laser remelting has the advantage of precise control of the remelting process by suitably chosen parameters. It enables the remelting of thewhole thickness of the coating and creation of ametallurgical bonding with the substrate or remelting of the coating only to a certain depth and maintaining the advantage of thermally sprayed coatings&apos; lamellar microstructure. In this study, HVOF sprayed Stellite coatings on a steel substrate were remelted by a high power diode laser. The experiment was designed to evaluate the role of the process speed on the depth of remelting, comparing cases of a different coatings and sample thicknesses using Near-infrared (NIR) camera. The temperature field in the melting area was evaluated and related to the achieved depth of remelting. The study shows that the IRmeasurement can be used for prediction of the achieved depth of remelting during a laser remelting, regardless of the coating/substrate thickness ratio.

Název v anglickém jazyce

Diagnostics of Laser remelting of HVOF sprayed stellite coatings using an infrared camera

Popis výsledku anglicky

Thermally sprayed coatings can be remelted to improve their microstructure and functional properties. Among other remelting technologies, laser remelting has the advantage of precise control of the remelting process by suitably chosen parameters. It enables the remelting of thewhole thickness of the coating and creation of ametallurgical bonding with the substrate or remelting of the coating only to a certain depth and maintaining the advantage of thermally sprayed coatings&apos; lamellar microstructure. In this study, HVOF sprayed Stellite coatings on a steel substrate were remelted by a high power diode laser. The experiment was designed to evaluate the role of the process speed on the depth of remelting, comparing cases of a different coatings and sample thicknesses using Near-infrared (NIR) camera. The temperature field in the melting area was evaluated and related to the achieved depth of remelting. The study shows that the IRmeasurement can be used for prediction of the achieved depth of remelting during a laser remelting, regardless of the coating/substrate thickness ratio.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/ED2.1.00%2F03.0088" target="_blank" >ED2.1.00/03.0088: Centrum nových technologií a materiálů (CENTEM)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Surface and Coatings Technology

ISSN

0257-8972

e-ISSN

—

Svazek periodika

318

Číslo periodika v rámci svazku

MAY 25 2017

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

5

Strana od-do

360-364

Kód UT WoS článku

000402356100043

EID výsledku v databázi Scopus

2-s2.0-85009517317