What is a grain? (metallurgical definition)
What is a grain? (metallurgical definition)
(OP)
I am trying to elliminate skiwed points in a EBSD grain size measurement analysis. Before eliminating those, I have to define what is a grain.
I know that a grain is "a three dimensional crystalline volume within a specimen that differs in crystallographic orientation from its surroundings". A grain is considered made of grain boundaries with disorientation superior to 15 degrees.
Correct me if I am wrong or complete as much as possible the above definition.
Thanks for any comments and for your time,
Maleck
I know that a grain is "a three dimensional crystalline volume within a specimen that differs in crystallographic orientation from its surroundings". A grain is considered made of grain boundaries with disorientation superior to 15 degrees.
Correct me if I am wrong or complete as much as possible the above definition.
Thanks for any comments and for your time,
Maleck





RE: What is a grain? (metallurgical definition)
grain—an individual crystallite in metals.
grain boundary—an interface separating two grains, where
the orientation of the lattice changes from that of one grain to that of the other. When the orientation change is very small the boundary is sometimes referred to as a subboundary.
crystallite—a crystalline grain not bounded by habit planes.
habit plane—crystallographic plane in a parent phase along
which a new phase (or phases) is (are) generated.
RE: What is a grain? (metallurgical definition)
Regards,
Cory
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
RE: What is a grain? (metallurgical definition)
Best wishes !
Maleck