NASA NTRS · 20150006629
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Duncan, Courtney B., Robison, David E., Koelewyn, Cynthia Lee. 2011-01-26. Software Defined GPS Receiver for the International Space Station. https://ntrs.nasa.gov/citations/20150006629
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A stress corrosion evaluation was performed on NiTiHf alloy because this material is considered a bearing material candidate for the Environmental Control and Life Support System. Stressed round tensile specimens survived exposures to alternate pretreat, alternate brine, baseline pretreat, baseline brine, and 3.5% NaCl alternate immersion. Metallographic evaluations did not detect stress corrosion on exposed samples. The ultimate tensile strength values varied significantly for this material, which is common for bearing materials. This variation was observed on both, exposed and nonexposed specimens. The results of this work indicate that this material has potential applications as a bearing material.
No abstract available