Boronized Stainless Steels with Zirconia Coatings

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F15%3A00327764" target="_blank" >RIV/68407700:21610/15:00327764 - isvavai.cz</a>

Result on the web

<a href="http://konsys2.tanger.cz/files/proceedings/21/papers/3979.pdf" target="_blank" >http://konsys2.tanger.cz/files/proceedings/21/papers/3979.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Boronized Stainless Steels with Zirconia Coatings

Original language description

The abstract is describing results of characteristics studies of ceramic coatings made from corundumbaddeleyite ceramics, on deposit, boronized corrosion-proof steel AISI 303. Boronizing of steel surface is a technology known for tenths of years. In addition to higher surface strength leading to abrasion resistence some versions of boronisation may contribute also to corrosion-proof protection of the steel. Benefits of these applications can be multiplied by formation of ceramic coatings with higher strength, fire resistence and lower surface porosity. Borides in such a case form on the steel interlayers with suitable coefficient of linear thermal expansion to ceramic coatings which are applied by the method of thermal spraying or plasma spraying. Conditions of boronizing by the method of reactive fusion of boron from boron carbide and lanthanum hexaboride are described so the formation of Fe2B is preferred to FeB, which is more fragile and the structure of which does not comply with conditions for perfect adhesion of modified zirconium ceramics. Perfect adhesion connection of needle-like anchored interlayers of Fe2B in corrosion-proof steel AISI 303 prepared by reactive diffusion of boronizing media without activating agents under temperature 1000 °C and with exposure 2 – 4 hours is proving during pin-off tests values of the bond strength 20 MPa – 25 MPa. Ceramic coatings made from Eucor Al2O3-ZrO2 formed on these interlayers have bond strength value 9 MPa – 13 MPa. Thermic cycling in the interval 100°C – 600 °C confirmed good bond strength of coatings with the base steel. The static cycling under higher temperatures (600-1000 °C) proved already higher number of failures of bond strength and mechanical destructions of coatings.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20402 - Chemical process engineering

Project

<a href="/en/project/GA15-22670S" target="_blank" >GA15-22670S: Experimental and numerical analysis of bond behaviour between steel reinforcement and Ultra High Performance Concrete (UHPC)</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

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

Article name in the collection

METAL 2015 - 24th International Conference on Metallurgy and Materials

ISBN

978-80-87294-62-8

ISSN

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e-ISSN

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Number of pages

6

Pages from-to

1069-1074

Publisher name

Tanger

Place of publication

Ostrava

Event location

Brno

Event date

Jun 3, 2015

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000374706100172