Number of Cycles to Failure
The number of load cycles to failure indicates how often a material can be loaded under alternating forces before it completely fails. It is crucial for service life planning.
Physicochemical Mechanism of Action
Fatigue life to fracture refers to the number of repeated load cycles a material can withstand before losing its mechanical integrity. This process involves the cyclic bending and unbending of stresses in the material, which with each alternating force leads to increasing micro-deformation.
Metallurgical Relevance & Welding Risks
A too low fatigue life value can lead to early failure of the material under mechanical load, which is especially critical in highly stressed applications such as mechanical engineering or aviation. Incorrect welding parameters can affect the material's structure and reduce the fatigue life value.
Workshop Practice & Actions
To maximize fatigue life to fracture, the following measures should be taken:
• Use high-quality materials with low stress resistance.
• Ensure the welding process is performed correctly to avoid defects or irregularities.
• Regularly check the mechanical load and make service life predictions.