EFFECT OF REMELTING IN AN ARC VACUUM FURNACE ON THE PROPERTIES OF A NICKEL-BASE HEAT-RESISTANT ALLOY
Abstract
A study was made of the effect of remelting in an arc vacuum furnace on the properties of a heat-resistant nickel-base alloy. The alloy possesses high heat resistance but not sufficient plasticity. Conclusions: (1) It is possible to obtain ingots without surface defects in an arc vacuum furnace (the volume of the shrinkage cavity is considerably reduced in ingots produced in an arc vacuum furnace; there are no sub-skin porosities, scabs, or laps); (2) remelting in an arc furnace ensures a decrease in the C, S, O, and N content in the alloy; (3) the nonmetallic inclusions are markedly reduced in an alloy melted in an arc vacuum furnace (the inclusion particles are finer and are uniformly distributed through the volume of the metal); and (4) remelting in a vacuum ensures increased tensile strength of an alloy and improvement of its plasticity. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 26, 1959
- Accession Number
- AD0256154
Entities
People
- V.a. Sheremet'yev
Organizations
- National Air and Space Intelligence Center