Holes in titanium that have been overheated are more susceptible to what?

Holes in titanium that have been overheated are more susceptible to cracking due to the changes that occur in the material's microstructure when exposed to excessive heat. Overheating can lead to the degradation of titanium's mechanical properties, which include its toughness and resistance to stress.

When titanium is subjected to high temperatures, it can experience alterations in its phase that make it brittle. This brittleness increases the likelihood of cracking under stress, especially if the titanium component is then subjected to mechanical forces or thermal cycling. The presence of holes, which create localized stress concentrations, can further amplify this risk. When the structural integrity of titanium is compromised by overheating, the material no longer can dissipate stresses effectively, leading to crack initiation and propagation.

While deformation, corrosion, and loose fittings can also be concerns with titanium in various contexts, they are not the primary issues directly associated with the effects of overheating. Instead, cracking becomes a critical failure mode that needs to be managed and monitored in components that have undergone high-temperature exposure.