Which outcome accelerates oxidation in high-temperature alloy components?

💡 Explanation

Grain boundary diffusion increases oxygen transport at elevated temperatures, because the smaller atomic packing enables faster diffusion of oxygen into the material. Therefore, oxidation accelerates at high temperatures along grain boundaries, rather than by bulk diffusion within each grain.

• Which flow transition occurs as engine oil's Reynolds number increases past 2000?
• Which inefficiency arises in internal combustion engines when using high volatility fuels in hot conditions?
• Which rate-limiting outcome occurs when catalytic converters become excessively sulfurized?
• Which outcome occurs when austenite stainless steel is rapidly cooled from annealing temperature?
• Which risk increases when a closed Rankin cycle steam turbine operates with inadequate condenser cooling?
• Which stability outcome during enzyme catalysis increases when reactant concentration declines?