Hot Hardness Investigation of Refractory Metals and Alloys
ARMY WEAPONS COMMAND ROCK ISLAND IL GENERAL THOMAS J RODMAN LAB
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The investigation was conducted to determine the hardness of several refractory metals and alloys at temperatures from 70F to 2000F. Microhardness tests were made in vacuum under controlled conditions to provide comparable screening data for predicting the strengths of these materials in high- temperature applications such as gun barrel liners. Materials tested included tungsten, molybdenum, columbium, tantalum, columbium-base alloys, and tantalum- base alloys. Chromium plate and Cr-Mo-V steel, currently used in gun barrels, were also tested for comparison.
- Metallurgy and Metallography