Transcrystalline Fatigue Failure 1

[nitin248]

We have a component that has failed and the report states that there has been a transcrystalline fatigue fracture of the component.
Any enlightenment on what mode of failure this is exactly would be greatly appreciated.
Thanks

 

[CoryPad]

This is the standard mode for metallic components subjected to cyclic loading.

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[arunmrao]

You can read more about this failure in the book.

"Mechanical Metallurgy" by Dieter.

Chocolates,men,coffee: are somethings liked better rich!!
(noticed in a coffee shop)

 

[TVP]

Fatigue is the fracture mode. Transcrystalline (or transgranular) is the fracture path. The following links have good information related to fatigue, fractography, etc.:

http://ammtiac.alionscience.com/pdf/2005MaterialEASE29.pdf

http://web.utk.edu/~prack/mse201/Chapter 8 Failure.pdf

http://www.imrtest.com/cms/repository/media/ArticleFractography.pdf

 

[unclesyd]

In addition to the excellant references by TVP you might want to check out the Virginia Tech site.

http://www.sv.vt.edu/classes/MSE2094_NoteBook/97ClassProj/frames.html

 

[nitin248]

Thanks a lot. The references really helped.