Problems that porosity may cause?

[nb89]

I understand the different ways that pores may be formed in a metal, however what i want to know is how it affects the properties of the metal. Am i right in thinking that it would increase the fatigue of the metal, since a large scale of porosity would make the metal more prone to crack formation?

 

[darkelf]

Well it usually affects the material strength of the metal. It is known to weaken the metal but it has also been looked into as a way to strengthen the metal as well.