2024-03-28T18:30:00Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00007483
2023-01-16T03:52:58Z
320:321:322
熱遮へいジルコニアコーティングのX線的弾性定数と残留応力分布
X-Ray Elastic Constants and Residual Stress Distributions of Zirconia Thermal Barrier Coating
鈴木, 賢治
SUZUKI, Kenji
町屋, 修太郎
MACHIYA, Shutaro
田中, 啓介
TANAKA, Keisuke
坂井田, 喜久
SAKAIDA, Yoshihisa
open access
日本機械学会
本文データは学協会の許諾に基づきCiNiiから複製したものである。
Experimental Stress Analytis
X-Ray Stress Measurement
Material Testing
Elastic Constant
Residual Stress
Ceramics
Thermal Barrier Coating
Accurate values of X-ray elastic constants are required for a reliable stress measurement of thermal barrier coating films (TBC films). In this paper, atmosphere and pressureless plasma sprayed TBC films were removed from substrates, then X-ray elastic constants of both TBC films were determained by using newly developed tensile jig. For the atmosphere plasma sprayed film, the value of the mechanical elastic constant was much smaller than the X-ray elastic constant owing to cracks or pores existing in the films. The X-ray elastic constant of the atomosphere plasma sprayed TBC film was nearly equal to that of the pressureless plasma sprayed film. This means that the X-ray elastic constants are little influenced by cracks or pores. Residual stress distributions in both films coated on the substrates were obtained. In the surface region with the depth up 60 μm, residual stresses of both films showed a drastic variation. This variation of the residual stresses was build up during rapid quenching and solidifying of the molten droplet. In deeper regions, residual stresses were nearly constant. These constant values of residual stresses are caused by the thermal strain mismatch between the TBC film and the substrate.
日本機械学会
2001-03
jpn
journal article
VoR
http://hdl.handle.net/2237/9167
https://nagoya.repo.nii.ac.jp/records/7483
http://ci.nii.ac.jp/naid/110002369802/
0387-5008
日本機械学會論文集 A編
67
655
417
423
https://nagoya.repo.nii.ac.jp/record/7483/files/JsMecEngA_67-655-417.pdf
application/pdf
645.4 kB
2018-02-19