What performance does the fatigue resistance of tungsten alloy screws have? It stands out for high fatigue limit and long cycle life. First, high fatigue limit: >600MPa, withstanding 10^7 cycles without failure, enhanced 30% after forging. Second, long life performance: Stable under vibration, applicable to aerospace. Third, slow crack propagation: Microstructure inhibits fatigue cracks. Fourth, minimal temperature impact: Good fatigue at high temperatures. Fifth, alloy optimization: Ni-Fe enhances fatigue resistance. These performances ensure reliability.
