Notch Sensitivity, Mechanical, and Microstructural Characteristics of TD-NiCr at Elevated Temperatures

1 April 1974

journal article
Published by ASME International in Journal of Engineering Materials and Technology

Vol. 96 (2) , 109-114
https://doi.org/10.1115/1.3443191

Abstract

Tensile and creep-rupture tests were conducted for smooth and sharp edge-notched specimens of 0.015-in. (0.38 mm) thick TD-NiCr sheet at 1000 to 1800 deg F (538–982 deg C). The dislocation mechanisms operative were in good agreement with theoretical concepts. Time-dependent notch sensitivity was not observed. The notched specimen behavior correlated with the same mechanical characteristics and microstructural features as previously established for Waspaloy and Inconel 718 which are strengthened by coherent precipitates.

Keywords

CREEP
TEMPERATURE
MECHANICAL PROPERTIES
DISLOCATIONS
RUPTURE
MECHANISMS

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