ON THE CONTRIBUTION OF INTERNAL MISMATCH STRESSES TO THE HIGH-TEMPERATURE BROADENING OF GAMMA-RAY DIFFRACTION PEAKS IN A NI-BASED SINGLE-CRYSTAL

被引：17

作者：

HAZOTTE, A ^{[1
]}

BELLET, D ^{[1
]}

GANGHOFFER, JF ^{[1
]}

DENIS, S ^{[1
]}

BASTIE, P ^{[1
]}

SIMON, A ^{[1
]}

机构：

[1] UNIV GRENOBLE 1,CNRS,URA 08,SPECTROMETRIE PHYS LAB,F-38402 ST MARTIN DHERES,FRANCE

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1992年 / 66卷 / 04期

关键词：

D O I：

10.1080/09500839208219032

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recent results of a two-dimensional finite-element modelling of the elastic distortions resulting from the lattice mismatch between gamma- and gamma'-phases have been used to estimate the relative contribution of internal stresses to the broadening of gamma-ray diffraction peaks, which has been observed at high temperatures in the case of some nickel-based superalloy single crystals. In the case of CMSX-2 alloy, it is found that the magnitude of the broadening of {220} and {200} peaks calculated when taking the elastic distortions into account is in good agreement with the experimental observations.

引用

页码：189 / 196

页数：8

共 15 条

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