Properties Of Yttrium And The Rare Earth Metals, Effect Of Minor Additions To Niobium-Base Alloy On Elevated Temperature Oxidation Resistance
Report Number: WADD TR 61-123 Part 2
Author(s): Kirkpatrick, Craig G.
Corporate Author(s): Research Chemicals
Laboratory: Directorate of Materials and Processes
Date of Publication: 1962-06-01
Pages: 143
Contract: AF 33(616)-6829
DoD Project: 7351 - Metallic Materials
DoD Task: 735103
Identifier: AD0284425
Abstract:
Approximately 180 compositions in 19 niobium based alloy types were prepared for study. Atmospheric corrosion tests were completed for 9 series of alloys. Improved corrosion resistance is indicated for a niobium alloy containing 7% titanium, 20% tungsten, and 3% molybdenum when rare earth metals are added. Possible improvement, on the addition of rare earths, is also suggested for a niobium alloy containing 11.3% titanium and 7.9% molybdenum. Metallurgical investigations of two alloy series failed to indicate correlation between metal interface movement or microhardness values with corrosion resistance as established by weight gain measurements.
Provenance: Lockheed Martin Missiles & Fire Control
Author(s): Kirkpatrick, Craig G.
Corporate Author(s): Research Chemicals
Laboratory: Directorate of Materials and Processes
Date of Publication: 1962-06-01
Pages: 143
Contract: AF 33(616)-6829
DoD Project: 7351 - Metallic Materials
DoD Task: 735103
Identifier: AD0284425
Abstract:
Approximately 180 compositions in 19 niobium based alloy types were prepared for study. Atmospheric corrosion tests were completed for 9 series of alloys. Improved corrosion resistance is indicated for a niobium alloy containing 7% titanium, 20% tungsten, and 3% molybdenum when rare earth metals are added. Possible improvement, on the addition of rare earths, is also suggested for a niobium alloy containing 11.3% titanium and 7.9% molybdenum. Metallurgical investigations of two alloy series failed to indicate correlation between metal interface movement or microhardness values with corrosion resistance as established by weight gain measurements.
Provenance: Lockheed Martin Missiles & Fire Control