Inconel 713C（ЖС13 / ВЖЛ13）
Inconel 713C is a vacuum-melted nickel-based casting superalloy developed for medium-to-high temperature turbine applications. The alloy contains balanced additions of chromium, molybdenum, aluminum, niobium, and titanium, providing excellent precipitation strengthening and oxidation resistance.
Due to its outstanding castability and cost-effective performance, Inconel 713C has become one of the most widely used casting superalloys for turbine blades, guide vanes, and turbocharger components. The alloy provides reliable mechanical properties and creep resistance under long-term exposure to elevated temperatures.
Vacuum melting technology ensures consistent chemistry, low impurity levels, and stable casting quality for critical turbine applications.
Service Temperature Range: 650–850°C.
| Element | Ni | Cr | Mo | Al | Nb | Ti | C |
|---|---|---|---|---|---|---|---|
| Content (%) | Balance | 12.0-14.0 | 4.0-5.0 | 5.5-6.5 | 1.8-2.8 | 0.5-1.0 | 0.08-0.20 |
| Condition | Tensile Strength (MPa) | Elongation (%) | Rupture Life (h) |
|---|---|---|---|
| Room Temperature | ≥850 | ≥7 | — |
| Elevated Temperature (815°C) | ≥580 | ≥5 | — |
| 815°C / 200 MPa (Creep) | — | — | ≥100 |
Inconel 713C provides excellent resistance to oxidation and thermal degradation at elevated temperatures. The alloy forms a stable protective oxide layer that helps maintain long-term service reliability in turbine environments.
Typical heat treatment practices include:
Solution Treatment: 1120–1175°C
Aging Treatment: 845–870°C
Heat treatment parameters may vary depending on casting geometry and customer requirements.
The alloy should be heated uniformly before thermal processing to reduce thermal stress and distortion.
Surface treatment methods include:
Inconel 713C is primarily intended for investment casting applications rather than conventional forming operations.
Complex geometries can be produced directly through precision casting technologies.
The alloy can be machined using carbide tooling and suitable cutting parameters. Low cutting speeds and sufficient cooling are recommended due to its high-temperature strength and work-hardening tendency.
Welding should be performed using qualified procedures to minimize cracking and preserve mechanical properties. Post-weld heat treatment may be required depending on application requirements.
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