Yield Strengths of Biaxially Textured Metallic Substrates
(Ni and its Alloys) Determined Using a Simplified Test Method |
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Authors: | Chakrapani V Varanasi Leon Chuck Lyle Brunke Jack Burke Andrew D Chaney Paul N Barnes |
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Affiliation: | (1) University of Dayton Research Institute, 300 College Park, Dayton, OH 45469, USA;(2) Air Force Research Laboratory, 2645 Fifth St., Wright-Patterson AFB, OH 45433, USA |
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Abstract: | A simple testing method is used to compare the yield strengths (YS) of biaxially textured metallic substrates (Ni and its
alloys) presently under development for YBa2Cu3O7−x
coated conductors. This method is based on a retired ASTM D3379 tensile test standard method that was originally recommended
for single filament materials. Several common textured substrates, such as Ni, Ni-3at.%W, and Ni-5at.%W, procured from different
manufacturers, were tested using this method, and the data were compared with the values reported in the literature. A new
alloy substrate (constantan (Cu55-Ni44-Mn1wt.%)) that is biaxially textured in-house was also tested using this method, and
the YS data were compared with those of other substrates. For the substrates used in this study, the data obtained using this
method indicated that Ni substrates have YS of ∼52 MPa, Ni-3at.%W substrates have YS of ∼106 MPa, Ni-5at.%W substrates have
YS 163 MPa, and Cu55-Ni44-Mn1 wt.% substrates have YS of 74 MPa. |
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Keywords: | Coated conductors bi-axial textured metal substrates Ni and its alloys yield strength |
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