Collaboration Tasks on Physical and Fundamental Properties of Plasma Sprayed Thermal Barrier Coatings in Japan Society of Materials Science

Kazuhiro Ogawa

doi:10.4028/www.scientific.net/KEM.353-358.1806

Paper Titles

CrN Coating on Magnesium Alloy AZ91 by Arc-Glow Plasma Depositing Process
p.1789

Electrochemical Corrosion Behaviors of Ti₂AlNb with Double Glow Plasma Surface Molybdenized
p.1793

Research on Surface Low Alloy HSS by Plasma Surface Metallographic W, MO, C Alloying
p.1798

Some Problems on Evaluating Elastic Modulus of APSed Ceramic Top Coat for TBCs by Indentation Method
p.1802

Collaboration Tasks on Physical and Fundamental Properties of Plasma Sprayed Thermal Barrier Coatings in Japan Society of Materials Science
p.1806

Mechanical Properties of 316L Stainless Steel with Nanostructure Surface Layer Induced by Surface Mechanical Attrition Treatment
p.1810

Evaluation of Silica Content on Fracture Toughness of PI/SiO₂ Hybrid Films
p.1814

Oxidation Resistance of Ti-6Al-4V by Plasma Niobium Surface Alloying
p.1818

The Processing of Anti-Rust Boronizing Layer on Steel Surface
p.1822

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Collaboration Tasks on Physical and Fundamental Properties of Plasma Sprayed Thermal Barrier Coatings in Japan Society of Materials Science

Abstract:

The subcommittee on superalloys and coatings, The Society for Materials and Science, Japan (JSMS) was established in 1997. As second stage of the committee, we investigated a fundamental study on thermal plasma sprayed thermal barrier coatings (TBCs). Especially, relationships between spray conditions and coating properties are discussed. It was used 4 spraying conditions such as 1) standard condition, 2) larger particle used and lower velocity, 3) normal particle used and lower velocity, and 4) standard condition and heating up the substrate to 473K. As a round robin test, porosity ratio, residual stress, and bonding strength were evaluated by several techniques for the specimens, which were sprayed by above 4 conditions. As a result, Young’s modulus, and tensile strength increased with decreasing porosity ratio. In case of tests for residual stress evaluation, as-sprayed specimens have small tensile residual stresses. After thermal exposure, residual stresses shifted to compressive.