Accession Number:

AD0274036

Title:

NIOBIUM, MOLYBDENUM, TANTALUM AND TUNGSTEN. A SUMMARY OF THEIR PROPERTIES WITH RECOMMENDATIONS FOR RESEARCH AND DEVELOPMENT

Descriptive Note:

Corporate Author:

ADVISORY GROUP FOR AERONAUTICAL RESEARCH AND DEVELOPMENT PARIS (FRANCE)

Personal Author(s):

Report Date:

1961-12-01

Pagination or Media Count:

146.0

Abstract:

The metals Nb, Mo, Ta and W are discussed from the aspects of 1 physical properties, 2 mechanical characteristics at various temperatures unalloyed metal and main alloys, and 3 oxidation behaviour. Reference is also made to the problems of protective coatings, joining and fabrication. Following the examination of the present state of knowledge, recommendations are made for research and development. A detailed study is presented of the state of knowledge of each of the metals in regard to phase diagrams, impurities determination and effects, diffusion couples, behaviour at high temperature under exposure to different gases, and protective coatings. A bibliography of the studies of the 4 metals and their alloys is also presented.

Subject Categories:

  • Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE