TY - JOUR
T1 - Initial Degradation Process of Heat-resistant Materials Based on the Change of Crystallinity of Grains and Grain Boundaries
AU - Murakoshi, Takuya
AU - Shinozaki, Taichi
AU - Suzuki, Ken
AU - Miura, Hideo
N1 - Funding Information:
This research activity has been supported partially by Japanese special coordination funds for promoting science and technology, and Tohoku University.
Publisher Copyright:
Copyright © 2016 The Authors. Published by Elsevier B.V.
PY - 2016
Y1 - 2016
N2 - Initial strengthened micro textures of heat-resistant materials have been found to disappear under operating conditions due to the increase of operating temperature and mechanical loading for improving the thermal efficiency of various power and chemical plantsClick here and insert your abstract text. The change of the micro textures was observed from the viewpoint of the change of the order of atom arrangement by using electron back-scatter diffraction analysis. The change of the order of atom arrangement was investigated by analyzing the change of the sharpness of the measured diffraction pattern obtained from the area irradiated by a focused electron beam. The degradation process of the quality of grains and grain boundaries was measured quantitatively in plural materials and the strain-induced anisotropic diffusion of component elements was the dominant factor of the degradation process.
AB - Initial strengthened micro textures of heat-resistant materials have been found to disappear under operating conditions due to the increase of operating temperature and mechanical loading for improving the thermal efficiency of various power and chemical plantsClick here and insert your abstract text. The change of the micro textures was observed from the viewpoint of the change of the order of atom arrangement by using electron back-scatter diffraction analysis. The change of the order of atom arrangement was investigated by analyzing the change of the sharpness of the measured diffraction pattern obtained from the area irradiated by a focused electron beam. The degradation process of the quality of grains and grain boundaries was measured quantitatively in plural materials and the strain-induced anisotropic diffusion of component elements was the dominant factor of the degradation process.
KW - EBSD analysis
KW - Heat-resistant materials
KW - High temperature damage
KW - Order of atom arrangement
KW - Strain-induced diffusion
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U2 - 10.1016/j.prostr.2016.06.176
DO - 10.1016/j.prostr.2016.06.176
M3 - Article
AN - SCOPUS:85065795677
VL - 2
SP - 1383
EP - 1390
JO - Procedia Structural Integrity
JF - Procedia Structural Integrity
SN - 2452-3216
ER -