INFLUENCE OF THE TIME FACTOR UPON THE COMPOSITION VERSUS HEAT RESISILOV
Abstract
The maximum heat resistances in isothermic diagrams of composition versus heat resistance are dependent not only upon temperature but also upon test time. This maximum shifts toward the supersaturated solid solutions with increasing test time. For short-time service (not over several hundred hours), it is desirable to use the most highly alloyed heat-resistant alloys with more heterogeneity of structure, in which several excess phases come into being during special heat treatment procedures or in actual service. For long-term service (tens, hundreds and thousands of hours) at high temperatures, it is desirable to use high-alloyed heat-resistant alloys but with a lower degree of supersaturation of the solid solutions. Highly alloyed and hardened solid solutions, stable to heat and subject to no phase transformations in the solid state during the entire term of service of the material would constitute ideal heat-resistant alloys for long service. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 28, 1961
- Accession Number
- AD0265676
Entities
People
- I. I. Kornilov
- L. I. Pryakhina
- O. V. Ozhimkova
Organizations
- National Air and Space Intelligence Center