Journal Published Online: 24 August 2011
Volume 39, Issue 6

Test System for Elevated Temperature Characterization of Thin Metallic Sheets



Thin gage Ni-based superalloy materials are being targeted for hypersonic applications up to 1100 °C. To achieve an optimized system design, standard mechanical behavior data on these materials are needed under a range of loading conditions such as tensile, creep, and fatigue at representative temperatures. These tests require direct measurements of displacements on specimens. In order to meet this need, a test system has been developed as part of a comprehensive in-house program to advance state-of-the-art testing capabilities for thin foils and very thin sheets. The test system was developed using a conventional hydraulic load frame outfitted with specialized capabilities, and was designed for determining material properties on a macro-scale. Specimen thicknesses used in this study range from 127-508 μm, with specimen lengths on the order of 150 mm. This paper outlines the developmental process, including unique challenges, along with the system validation and some preliminary data.

Author Information

Morrissey, Ryan
US Air Force Research Laboratory
John, Reji
US Air Force Research Laboratory
Ruddell, Mark
Univ. of Dayton Research Institute
Blosser, Phil
Univ. of Dayton Research Institute
Buchanan, Dennis
Univ. of Dayton Research Institute
Pages: 8
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Stock #: JTE103460
ISSN: 0090-3973
DOI: 10.1520/JTE103460