THE EVALUATION OF HIGH TEMPERATURE MATERIALS. SECTION I: EVALUATION OF COATINGS FOR REFRACTORY ALLOYS. SECTION II: MATERIALS EVALUATION WITH AN ARC-PLASMA-JET.
Abstract
Section I describes the evaluation of oxidation-resistant coatings for TZM molybdenum (Mo-0.5Ti-0.07Zr-0.03C) and B66 columbium (Cb-5V-5Mo-1Zr). Eight coatings for TZM were evaluated with primary emphasis upon four of these. Six coatings for B66 were evaluated with the bulk of this effort concentrated upon two coating systems. Test results covering complete metallographic analysis, tensile and bend tests, cyclic oxidation tests in the temperature range of 1600 to 3000F, and the results of creep-rupture tests complete with a statistical analysis are presented. Section II describes the screening tests of 32 different high-temperature materials, including ablative materials, impregnated porous ceramics, and refractory composites, in an arc-plasma testing facility. Included are screening data for several refractory materials developed from tests of 1-inch diameter discs. This disc test is described in detail and its relative merits as compared to more conventional flat panel tests are discussed. Materials performance data are presented as a tabulation of test conditions and their effects upon specimen behavior. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1964
- Accession Number
- AD0610867
Entities
People
- J. A. Cherry
- J. C. Wurst
Organizations
- University of Dayton Research Institute