The influence of the dendritic structure on the γ/γ′-lattice misfit in the single-crystal nickel-base super-alloy CMSX-4

被引：68

作者：

Bruckner, U

Epishin, A

Link, T ^{[1
]}

Dressel, K

机构：

[1] Tech Univ Berlin, D-10623 Berlin, Germany

[2] Bundesanstalt Mat Forsch Prufung, D-12205 Berlin, Germany

[3] Russian Inst Aviat Mat, Moscow 107005, Russia

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1998年 / 247卷 / 1-2期

关键词：

superalloy; misfit; X-ray diffraction;

D O I：

10.1016/S0921-5093(97)00856-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The gamma/gamma'-lattice misfit was measured locally by X-ray diffraction in the rhenium-containing single-crystal nickel-base superalloy CMSX-4. Different sections of a single crystal casting and positions in the dendritic structure have been analyzed. A remarkable difference of the misfit caused by segregation of refractory elements was found between the dendrite center and periphery. Problems of measurement and characterization of the gamma/gamma'-lattice misfit in superalloys of new generations with a high refractory element level are discussed. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：23 / 31

页数：9

共 19 条

[1] High-temperature measurements of lattice parameters and internal stresses of a creep-deformed monocrystalline nickel-base superalloy [J].