| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Computation Assisted Materials Development for Improved Corrosion Resistance
|
| Presentation Title |
P2-17: Development of Rhenium Free Heat-resistant Nickel Alloy for the Cast Blades Production by the Method of Directional Crystallization |
| Author(s) |
Evgeniy Milonin, Konstantin Balushok, Pavel Malinovskiy, Valeriy Naumyk, Vadim Shalomeev, Sergey Sheyko |
| On-Site Speaker (Planned) |
Evgeniy Milonin |
| Abstract Scope |
Based on the use of calculation and analytical methods for forecasting phase and structural stability, the heat-resistant nickel alloy ЗМИ-M5 chemical composition has been developed. This alloy does not contain rhenium, contains an increased amount of tantalum and tungsten (8.5% at the average level) and intended for manufacturing of cast working blades by the method of directional crystallization. Developed alloy after heat treatment, under the regime foreseen for modern IV generation alloys provides a tensile strength above 1300 MPa with satisfactory ductility (more than 6.0%) at a temperature of 20 ºC, as well as time to failure at a test temperature of 975 ºC and a load of 300 MPa 60...90 hours, which meets the requirements for the serial alloy ЖС32-ВИ and it is much less expensive. |