Influence of thermal loading on adhesive strength of thermal barrier coating applied to super high temperature gas turbin

2014 Fiscal Year Final Research Report

• Project/Area Number: 23560098
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Materials/Mechanics of materials
• Research Institution: Tokyo University of Science
• Principal Investigator: KANEKO Kenji 東京理科大学, 工学部, 教授 (40016803)
• Project Period (FY): 2011-04-28 – 2015-03-31
• Keywords: 遮熱被膜 / はく離強度 / せん断はく離 / 疲労はく離 / はく離基準 / 組合わせ応力

Outline of Final Research Achievements

The torsion-tension pin-test method was established to measure adhesive strength of thermal barrier coating (TBC) under combined shear and tensile loading. Using the new test method, adhesive strength of TBC after thermal loading, and adhesive fatigue strength SN curves) of WC-Co sprayed coating were investigated. Furthermore, stress distributions analyses around the interface edge using the finite element method were performed and the delamination conditions were presented for both TBC and WC-Co coating.

Free Research Field

材料力学・材料加工