On the Deformation of Dendrites During Directional Solidification of a Nickel-Based Superalloy

被引：0

作者：

J. W. Aveson

G. Reinhart

C. J. L. Goddard

H. Nguyen-Thi

N. Mangelinck-Noël

A. Tandjaoui

J. R. Davenport

N. Warnken

F. di Gioacchino

T. A. Lafford

N. D’Souza

B. Billia

H. J. Stone

机构：

[1] University of Cambridge,Department of Materials Science and Metallurgy

[2] Aix Marseille Université & CNRS,Laboratoire de Mécanique de Lille (UMR CNRS 8107)

[3] IM2NP UMR 7334,Department of Metallurgy and Materials

[4] Ecole Centrale de Lille,Department of Metallurgical and Materials Engineering

[5] University of Birmingham,undefined

[6] Colorado School of Mines,undefined

[7] European Synchrotron Radiation Facility,undefined

[8] Rolls-Royce plc,undefined

来源：

Metallurgical and Materials Transactions A | 2019年 / 50卷

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D O I：

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学科分类号：

摘要：

Synchrotron X-ray imaging has been used to examine in situ the deformation of dendrites that takes place during the solidification of a nickel-based superalloy. By combining absorption and diffraction contrast imaging, deformation events could be classified by their localization and permanence. In particular, a deformation mechanism arising from thermal contraction in a temperature gradient was elucidated through digital image correlation. It was concluded that this mechanism may explain the small misorientations typically observed in single crystal castings.

引用

页码：5234 / 5241

页数：7

共 50 条

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