Causes ofMetal Fatigue
· Fatigue dueto welding defects
· Environmentalconditions causing corrosion
· Temperatureor other factors that cause cracking of the metal surface
Hence, there are varied factors influencing metal fatigue. The sole purpose is not only cyclic load.
FiveEssential Considerations
The best part is that with few considerations, you canadd life to your metal. Keep the following things in mind to improve thefatigue life of your metal:
GeometricalDefect
Designing has a significant role to play in figuring outfatigue failure. Any deformity in the design can lead to increased load at aspecific point causing early fatigue. You can even consider redesigning thewhole thing to get higher fatigue strength.
Turn toTechnology
The advancements in technology can help you with thefatigue life of your metal too. Laser peening is the popular means of addingstrength to even the deepest layers of metal. It improves the temperaturedurability of the metal, hence making it less prone to cracks.
Electropolishing
A small crack or a minute tear can cause premature agingof your metal surface. However, by electropolishing, you can repair that particularmetal well before it turns into a disaster. If you find a small crack,electropolishing will smear off the thin layer, thus removing the crack.Removing this small crack that can turn into potential failure increases themetal fatigue rate.
Layering
Also known as surface hardening, this process gives anadded layer of protection to your metal. Covering the core metal surface with anitrogen-rich layer; means that your metal well protected against temperatureand other environmental conditions
Check forLoads
While putting any mechanical force into the structure,even during various examinations, check the amount of stress you put. Keep inmind to not put cyclic load at one point, which can lead to a defect.
With these considerations, you can improve your metalfatigue to a greater extent. Furthermore, keep performing regular checks to besure of your metal’s life!
