DETERMINATION OF MECHANICAL AND THERMOPHYSICAL PROPERTIES OF COATED REFRACTORY AND SUPERALLOY THIN SHEET,

Abstract

The mechanical properties of foil gauges of the D-36 and B-66 niobium and TZM molybdenum alloys were determined in coated and uncoated conditions at temperatures through 2700 F. Rene' 41 and Hastelloy X superalloy foils were evaluated at temperatures through 1900 F without coating. The tests made on these alloys were tensile, notch tensile, fatigue, creep, thermal cycling, thermal shock, dynamic modulus, oxidation, bend, recrystallization, simulated micrometeroid impact, and microstructural examination. Two furnaces are described. One was designed for testing bare refractory alloys in vacuum at high temperatures, and the other for testing coated refractory alloys at elevated temperatures. Development of a mechanical extensometer capable of measuring strain in a tensile test at 2700 F is discussed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1963
Accession Number
AD0426033

Entities

People

  • C. H. Savage
  • D. C. Root

Tags

DTIC Thesaurus Topics

  • Alloys
  • Extensometers
  • High Temperature
  • Mechanical Properties
  • Molybdenum
  • Molybdenum Alloys
  • Oxidation
  • Physical Properties
  • Recrystallization
  • Resistance
  • Shock
  • Superalloys
  • Thermal Shock
  • Thermophysical Properties
  • Transition Temperature

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Metallurgy