Which alloy is known to effectively improve strength at high temperatures in small quantities?

The alloy known to effectively improve strength at high temperatures in small quantities is molybdenum. Molybdenum is frequently used in the production of high-strength steel and superalloys, as it enhances hardness and strength without significantly reducing ductility. At elevated temperatures, molybdenum helps maintain the material's structural integrity, making it ideal for components in environments like gas turbines or power generation.

Adding even a small amount of molybdenum to steel can significantly enhance its yield strength and high-temperature performance, allowing for better overall performance in applications where durability under heat is critical. This characteristic makes molybdenum a valuable element in various high-performance alloys, especially in aerospace and automotive applications.