Creep induced evolution of internal stresses and structure in a single crystal nickel-base superalloy

被引：0

作者：

Brückner, U ^{[1
]}

Epishin, A

Link, T

Portella, P

机构：

[1] BAM, Fed Inst Mat Res & Testing, DE-12205 Berlin, Germany

[2] Russian Acad Aviat Mat, RU-107005 Moscow, Russia

[3] Tech Univ Berlin, DE-10623 Berlin, Germany

来源：

ECRS 5: PROCEEDINGS OF THE FIFTH EUROPEAN CONFERENCE ON RESIDUAL STRESSES | 2000年 / 347-3卷

关键词：

creep; dendrite; misfit; segregation; superalloys;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Changes in the structure of single-crystal (SC) superalloy SRR99 during creep at 980 degreesC and 200 MPa were investigated. Geometrical. parameters of the gamma/gamma ' -microstructure, gamma/gamma ' -misfit, stresses in the phases and local misorientation of the structure were determined at defined points of the dendritic structure by use of X-ray diffraction (XRD), wavelength dispersive X-ray spectroscopy (WDXS), scanning (SEM) and transmission (TEM) electron microscopy. Correlation of the microstructural period and local misorientation of the structure with creep strain were found.

引用

页码：363 / 367

页数：5

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