In Situ Deformation at 850°C of Standard and Rafted Microstructures of Nickel Base Superalloys-Reference-Cited by-同舟云学术

In Situ Deformation at 850°C of Standard and Rafted Microstructures of Nickel Base Superalloys

Published:2006-03 Issue: Volume:509 Page:57-62
ISSN:1662-9752
Container-title:Materials Science Forum
language:
Short-container-title:MSF

Author:

Clément Nicole¹,Benyoucef Mustafa²,Legros M.³,Caron Pierre⁴,Coujou Armand¹

Affiliation:

1. CEMES-CNRS

2. Faculte Des Sciences et Techniques Guéliz

3. Ecole National Supérieure des Mines de Nancy

4. ONERA

Abstract

An in situ study of the plastic deformation of <001> single crystals of an industrial superalloy has been performed at 850 °C in a TEM to observe directly the micromechanisms which control the deformation under the actual temperature and stress conditions experienced by this material in aeroengines. A comparison between the creation and propagation modes of moving dislocations in the standard microstructure after annealing and the rafted microstructure after 20 h of creep at 1050°C evidence the important role of the width of the γ channels as well as the strength of the γ/γ’ interface in controlling the shearing events of γ’ channels.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.scientific.net/MSF.509.57.pdf

Reference9 articles.

1. P. Caron and T. Khan: Third Generation Superalloys for Single Crystal Blades", in Materials 200 nm 200 nm (a) (b) Fig. 6 : In situ dynamic sequence at 850 °C of a rafted microstructure. Successive crossing of a γ'/γ and a γ/γ, interface by a pile-up of dissociated superdislocations. The first one is easily overcome while the second stops part of the pile-up. for Advanced Power Engineering 1998 - Part II, J. Lecomte-Beckers, F. Schubert and P.J. Ennis, eds, (Forschungzentrum Jülich Gmbh, Germany 1998), p.897.

2. M. Benyoucef, N. Clément and A. Coujou: Mater. Sci. Eng. Vol. A164 (1993), p.401.

3. A. Coujou, M. Benyoucef and N. Clément: Solid State Phenomena Vol. 35-36 (1994), p.455.

4. M. Benyoucef, N. Clément and A. Coujou: Phil. Mag. Vol. A72 (1995), p.1043.

5. T. M. Pollock and A. S. Argon: Acta Metall. Mater. Vol. 42 (1994), p.1859.

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