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
收藏
页码：363 / 367
页数：5
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