OPTIMIZATION OF THE HEAT-TREATMENT CYCLES OF WROUGHT SEMIFINISHED PRODUCTS OF MEDIUM-ALLOY HIGH-TEMPERATURE STRENGTH NICKEL-ALLOYS

Authors
VLASOVA ON KORNEEVA NN EREMENKO VI LOMBERT BS SUBBOTIN AM GOROKHOV VP
Citation
On. Vlasova et al., OPTIMIZATION OF THE HEAT-TREATMENT CYCLES OF WROUGHT SEMIFINISHED PRODUCTS OF MEDIUM-ALLOY HIGH-TEMPERATURE STRENGTH NICKEL-ALLOYS, Metal science and heat treatment, 35(1-2), 1993, pp. 50-54
Citations number
NO
Categorie Soggetti
Metallurgy & Mining
Journal title
Metal science and heat treatment → ACNP
ISSN journal
00260673
Volume
35
Issue
1-2
Year of publication
1993
Pages
50 - 54
Database
ISI
SICI code
0026-0673(1993)35:1-2<50:OOTHCO>2.0.ZU;2-7
Abstract
The method of production of gas-turbine engine disk and shaft forgings of KhN73MBTYu (EI698VD) and KhN77TYuR (EI437BUVD) medium-alloy high-t emperature strength nickel alloys includes a standard heat treatment i ncluding double solution treatment (the first solution treatment from temperatures 50-70-degrees-C higher than the temperature of complete s olution of gamma'-phase and the second from temperatures 50-70-degrees -C below it) and aging. In a number of cases after the standard heat t reatment, semifinished products have reduced strength or plasticity. I n this work two variations of heat treatment for increasing and stabil izing the mechanical properties of KhN73MBTYu and KhN77TYuR forgings a re proposed.