Accession Number : AD0726730

Title :   Effect of High-Temperature Thermomechanical Processing on the Heat Resistance of the Alloy KhN70 VMTYu (Vlyanie Vyskotemperaturnoi Termomekhanicheskoi Obrabotki Na Zharoprochnost Splava Kh70 VMTYu),

Corporate Author : ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA

Personal Author(s) : Lozinskii,M. G. ; Nikishov,A. S. ; Pertsovskii,N. Z. ; Kaplin,Yu. L.

Report Date : 24 JAN 1971

Pagination or Media Count : 13

Abstract : One of the promising methods for hardening metals is high-temperature thermomechanical processing (HTMP); it involves a combination of hot plastic deformation and tempering. This paper gives some results of a study of the effects of various HTMP variants with the deformation of billets by drop-forging on the heat resistance of the alloy E1617 (KHn70VMTYu) with a nickel base. HTMP was performed using a crankshaft press with a maximum force of 2500 tons. Examination of many tests on variants reveals that the optimum HTMP variants for the alloy E1617 is forging at 1100-1050C with settling by 9-12% and cooling of pretempered billets in the air. The results indicate that it is desirable to use HTMP in forging turbine blades from the alloy E1617. (Author)

Descriptors :   (*NICKEL ALLOYS, MECHANICAL WORKING), HEAT TREATMENT, HARDENING, HEAT RESISTANT ALLOYS, HEAT RESISTANT METALS, TURBINE BLADES, USSR

Subject Categories : Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE