Hot corrosion of ceria-Yttria stabilized zirconia plasma sprayed thermal barrier coating by eutectic vandiumpentaoxide-sodium sulfate
Other Title(s)
التآكل الساخن لطبقات الرش بالبلازما للحواجز الحرارية للسيريا-ياتريا المثبتة للزركونيا بالاويتكتيك لخماسي أوكسيد-الفناديوم-كبريتات الصوديوم
Joint Authors
Bash, Ali
Abd al-Azim, Maryam
Kazim, Muhammad Jasim
Hafiz, Muhammad Hliyil
Source
The Iraqi Journal for Mechanical and Materials Engineering
Issue
Vol. 18, Issue 1 (31 Mar. 2018), pp.183-193, 11 p.
Publisher
University of Babylon College of Engineering
Publication Date
2018-03-31
Country of Publication
Iraq
No. of Pages
11
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
The high temperature corrosion behavior of thermal barrier coating (TBC) system consisting of IN-738 LC superalloy substrate, air plasma sprayed Ni24.5Cr6Al0.4Y (wt%) bond coat and air plasma sprayed ZrO2-20 wt% ceria-3.6 wt% yttria (CYSZ) ceramic coat were characterized.
The upper surfaces of CYSZ covered with 30 mg/cm2 , mixed 45 wt% Na2SO4-55 wt% V2O5 salt were exposed at different temperatures from 800 to 1000 oC and interaction times from 1 up to 8 h.
The upper surface plan view of the coatings were identified for topography, roughness, chemical composition, phases and reaction products using scanning electron microscopy, energy dispersive spectroscopy, talysurf, and X-ray diffraction.
XRD analyses of the plasma sprayed coatings after hot corrosion confirmed the phase transformation of nontransformable tetragonal (t') into monoclinic phase, presence of YVO4 and CeVO4 products.
Analysis of the hot corrosion CYSZ coating confirmed the formation of high volume fraction of YVO4, with low volume fractions of CeOV4 and CeO2.
The formation of these compounds were combined with formation of monoclinic phase (m) from transformation of nontransformable tetragonal phase (t').
American Psychological Association (APA)
Kazim, Muhammad Jasim& Hafiz, Muhammad Hliyil& Abd al-Azim, Maryam& Bash, Ali. 2018. Hot corrosion of ceria-Yttria stabilized zirconia plasma sprayed thermal barrier coating by eutectic vandiumpentaoxide-sodium sulfate. The Iraqi Journal for Mechanical and Materials Engineering،Vol. 18, no. 1, pp.183-193.
https://search.emarefa.net/detail/BIM-835381
Modern Language Association (MLA)
Kazim, Muhammad Jasim…[et al.]. Hot corrosion of ceria-Yttria stabilized zirconia plasma sprayed thermal barrier coating by eutectic vandiumpentaoxide-sodium sulfate. The Iraqi Journal for Mechanical and Materials Engineering Vol. 18, no. 1 (Mar. 2018), pp.183-193.
https://search.emarefa.net/detail/BIM-835381
American Medical Association (AMA)
Kazim, Muhammad Jasim& Hafiz, Muhammad Hliyil& Abd al-Azim, Maryam& Bash, Ali. Hot corrosion of ceria-Yttria stabilized zirconia plasma sprayed thermal barrier coating by eutectic vandiumpentaoxide-sodium sulfate. The Iraqi Journal for Mechanical and Materials Engineering. 2018. Vol. 18, no. 1, pp.183-193.
https://search.emarefa.net/detail/BIM-835381
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 191-193
Record ID
BIM-835381