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Internal Strains Of A Creep Deformed Single Crystal Nickel-Based Superalloy

Published online by Cambridge University Press:  22 February 2011

Uwe Glatzel  and
Andreas MÜller
Uwe Glatzel
Affiliation:
Mikrostrukturanalyse, Sekr. BH 18, Technische Universität Berlin, D-10623 Berlin, Germany
Andreas MÜller
Affiliation:
Strukturforschung, Hahn-Meitner-Institut, Glienickerstr. 100, D-14109 Berlin, Germany
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Abstract

Neutron scattering experiments have been carried out with undeformed and creep deformed samples of the superalloy CMSX-4. From the measured constrained misfit data, obtained from different reflecting planes with respect to the external load axis, two strain tensors for horizontal and vertical matrix plates can be extracted.

A careful data analysis is necessary since the technical manufactured single crystals show a mosaic spreading of 0.5° and the wavelength spreading of the incident neutron beam, Δλ/λ is about 410-3 This is in the same range as the unknown constrained misfit quantities δc. A method has been developed which allows a calculated intensity distribution to be fitted to the measured one.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 376: Symposium BB – Neutron Scattering in Materials Science , 1994 , 397
Copyright
Copyright © Materials Research Society 1995

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References

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