The rigorous test of Dalian precision alloy steel: high temperature resistance and wear resistance
* : * : admin * : 2025-05-12 * : 0
In high-end fields such as aerospace, energy and power, and mechanical manufacturing, precision alloy steel often needs to face the challenges of extreme environments. Among them, high temperature resistance and wear resistance are key indicators to measure its quality, as well as core challenges in the research and application process.
Under high temperature conditions, ordinary steel will rapidly soften, experience a sudden drop in strength, and even undergo oxidation corrosion, while precision alloy steel must maintain stable mechanical properties and structural integrity. For example, in aircraft engines, turbine blades need to operate continuously under high-temperature gas shock above 1000 ℃, which requires precision alloy steel to have excellent high-temperature strength, oxidation resistance, and thermal stability. Researchers add alloying elements such as chromium, nickel, and cobalt to form a dense oxide film and optimize the microstructure of the material, enabling alloy steel to serve for a long time at high temperatures.
The wear resistance of Dalian precision alloy steel is equally important. In scenarios such as mechanical transmission and cutting, precision alloy steel components are constantly subjected to friction and impact. Taking bearings as an example, their surfaces need to remain smooth under high-speed rotation and alternating loads, otherwise even minor wear can lead to decreased accuracy and equipment failure. To improve wear resistance, in addition to increasing hardness through heat treatment, surface coating techniques such as chemical vapor deposition (CVD) and physical vapor deposition (PVD) are also used to form tungsten carbide and titanium nitride coatings with extremely high hardness on the surface of alloy steel, significantly reducing the friction coefficient and extending the service life of components.

Faced with the dual challenges of high temperature resistance and wear resistance, precision alloy steel continues to break through its performance limits. Its research and application not only promote the progress of materials science, but also provide solid support for modern industry to explore higher precision and more extreme environments.
The article presents the challenges and breakthroughs faced by Dalian precision alloy steel from application scenarios and technical means. If you would like to add more industry cases or delve deeper into the performance optimization of a certain type of material, please feel free to let me know at any time.