DEEP STABILIZATION AS A METHOD OF INCREASING THE LONG-TERM HEAT RESISTANCE AND DUCTILITY OF ALLOYS
Abstract
A number of examples are presented to illustrate the possibilities of a method of heat treatment of high-temperature alloys for blades, wheel ounts, and other parts of modern gas and stea turbines. The high degree of stabilization of the alloy properties was confirmed by shortterm mechanical tests of samples at various stages of aging at 750 C. The hot strength of Ni-base alloys was in direct relationship to the degree of stabilization by prior heat treatment. The required stabilization was obtained by a multiple-step stabilization treatment after austenizing and consisted of tempering at 1000, 900, and 800 or 850 C. The duration and temperature of the final stages of stabilization (at 700 750 or 650 C) were determined experimentally in each individual case and, in addition to consideration of the individual characteristics of the alloy, by the service temperature at which the parts made of these alloys are used. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 28, 1961
- Accession Number
- AD0264615
Entities
People
- Ye.m. Pivnik
- Ye.ye. Lebin
Organizations
- National Air and Space Intelligence Center