GH4169 alloy is a nickel-based superalloy extensively used in the aircraft engine industry because of its excellent mechanical properties and good fabrication ability. The mechanical properties of the GH4169 at high temperature, rupture stress under severe condition deserves a close attention. In this paper, the creep rupture of the GH4169 alloy under constant load and different temperatures from 550 °C to 700 °C conditions is systematically evaluated and major impact factors in the stress rupture behavior are analyzed. Furthermore, an improving method for the alloy stress rupture is proposed.

 

 

International Standards:

ASTM B637 (Nickel-base alloy plate and strip)

AMS 5596 (Nickel-chromium-iron-niobium-molybdenum alloy plate)

Typical Specifications

Thickness: 0.5–100 mm (customizable upon request)

Width: 1000–2500 mm

Length: 2000–6000 mm (support for ultra-long custom specifications)

Material Characteristics

GH4169 (corresponding to international grade Inconel 718) is a precipitation-hardened nickel-based superalloy with the following features:

 

High Strength: Maintains excellent tensile, fatigue, and creep strength across -253°C to 650°C.

Corrosion Resistance: Resistant to oxidation and corrosion, particularly outstanding in chloride environments.

Processability: Strengthenable via heat treatment; good weldability, suitable for complex structure manufacturing.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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