2024-03-28T19:21:21Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00002913
2022-12-15T03:36:06Z
154:501:502
453:454
Residual Stress in Zirconia Coating by EB-PVD Method
EB-PVDによる遮熱コーティングの残留応力のX線評価
EB-PVDによる遮熱コーティングの残留応力のX線評価
鈴木, 賢治
39740
和田, 国彦
39741
松原, 秀彰
39742
菖蒲, 敬久
39743
川村, 昌志
39744
田中, 啓介
39745
Thermal barrier coating
Electron beam-physical vapor deposition
X-Ray stress measurement
Residual stress
Zirconia
The Ni-based superalloy IN738LC was used as the substrate material, and CoNiCrAIY powder was pressureless plasma-sprayed on the substrate as the bond coating. Zirconia was coated as the top coating by the electron beam-physical vapor deposition (EB-PVD) method. In the EB-PVD process, the specimens were kept at 1223K and rotated with 5rpm, 10rpm and 20rpm. According to the microscopic observation and the result of the pole figures, the top coalings had a columnar structure, which was made by the piling up of (111) planes. The cross section of the column had a diamond shape, and its diagonal was parallel to the rotation axis. The residual stress on the surface of the top coatings was evaluated by the X-ray diffraction method. Each diffraction profile was separated into the 133 and the 331peak, and the residual stress was measured by the sin^2Ψ method. The measured residual stresses were-76.7MPa for 5rpm, -63.0MPa for 10rpm and -25.1MPa for 20rpm.
journal article
日本材料学会
2007-07
application/pdf
材料
7
56
588
593
材料
AN00096175
05145163
https://niigata-u.repo.nii.ac.jp/record/2913/files/56_588.pdf
jpn