METALLO-CERAMIC METHOD OF OBTAINED ALLOYED MOLDINGS ON THE BASIS OF MOLYBDENUM
Abstract
A STUDY WAS MADE OF THE TECHNOLOGY OF OBTAINING ALLOYED MOLYBDENUM BY THE METALLO-CERAMIC METHOD WITH A MINIMUM AMOUNT OF GASES, ESPECIALLY OF O, and a strict limiting of the content of C. The C in the alloys was detected by the volumetric and conductometric methods. The size of the grain of the original powders of Mo was investigated with the microscope and by the method of adsorption of the metal; the content of gas in the powders and in the baked moldings was determined by gas extraction. Carbon (above 0.05%) acts as a deoxidizer in the presence of open pores in the moldings heated to 2100 C in a vacuum of 0.001 mm Hg. More than 0.1 to 0.2% of C, in the alloy, does not lower the amount of O, but leads to the formation of the second phase in the form of filaments between the grains of the solid solution. The degree of decarbonization of the Mo basically depends on the presence of moisture in the H atmosphere, and in the case of the vacuum caking it depends on the content of O in the original powder. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 29, 1961
- Accession Number
- AD0262604
Entities
People
- A.v. Savin
Organizations
- National Air and Space Intelligence Center