Isothermal oxidation behavior of experimental Ti-Al-Si alloys at 700 °C in air

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F17%3APU121345" target="_blank" >RIV/00216305:26620/17:PU121345 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.jallcom.2016.10.044" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2016.10.044</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2016.10.044" target="_blank" >10.1016/j.jallcom.2016.10.044</a>

Result language

angličtina

Original language name

Isothermal oxidation behavior of experimental Ti-Al-Si alloys at 700 °C in air

Original language description

In the present work the oxidation kinetics of a series of experimental TiAlSi based alloys, additionally alloyed by zirconium and tin, was studied upon isothermal exposure at 700 C in ambient air and compared with that of a commercially available Ti6242 alloy. Examinations of the oxide scale microstructure, its phase composition and crystal morphology along with the measurements of the alpha-case thickness were performed in order to elucidate the oxidation mechanism of TiAlSi based alloys. The oxidation rates of the experimental alloys obeyed a parabolic relationship and were 1.5e2 times lower than those of the reference Ti6242 alloy. The alloying of the base Ti6Al1.4Si alloy with zirconium strongly reduced its oxidation rate, while the effect of tin addition appeared to be slightly deleterious. The zirconium addition reduced the thickness of the oxide scale and hindered recrystallization of the rutile crystals in the surface oxide layer. At the same time, the additional alloying with tin had practically no effect on the size of rutile crystals. The thickness of alpha-case was found to depend on the oxidation dwell time and followed a parabolic relationship. The most noticeable effect in reducing the alpha-case thickness was provided by zirconium addition, while the effect of additional alloying with tin on alphacase was slightly unfavorable.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20506 - Coating and films

Project

<a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>

Continuities

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

Publication year

2017

Confidentiality

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

Name of the periodical

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

1873-4669

Volume of the periodical

694

Issue of the periodical within the volume

1

Country of publishing house

CH - SWITZERLAND

Number of pages

10

Pages from-to

1098-1108

UT code for WoS article

000390622900142

EID of the result in the Scopus database

2-s2.0-84993123060