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Engineering

Grain Boundary Engineering: Boosting Creep Resistance in Nickel-Based Superalloys

Quick fact

Grain boundary engineering can significantly increase the creep life of nickel-based superalloys by converting a majority of the grain boundaries into 'special' low-energy boundaries that resist sliding and cracking—sometimes more than doubling the time to rupture.

Why this is interesting

Jet engine turbine blades operate at temperatures that would melt aluminum, yet they survive for years. What hidden feature inside the metal's microscopic structure keeps them from slowly stretching and cracking apart?

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Grain Boundary Engineering: Boosting Creep Resistance in Nickel-Based Superalloys

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