Wilmer Romero

3 Questions 3 Answers 0 Followers

Questions related from Wilmer Romero

Is it possible to use EBSD coupled to an SEM to accurately identify polymorphic materials?

Using only EDX it is not possible to distinguish between pyrite and marcasite, which, although they have equal compositions, have different crystalline structures. Or silica from quartz. I wonder...

27 January 2020 8,609 3 View

Why in the simulation of a fracture toughness test, the values of stress intensity factor are not uniform along the crack of the specimen?

In the virtual simulation of toughness using a standard steel specimen (A516-Gr.70), the maximum equivalent (Von-Mises) stresses are uniform along the entire length of the crack. However, when the...

22 January 2019 3,873 1 View

If grain boundaries act as sinks for dislocations, how can they act as obstacles at the same time?

Some researchers said that Grain boundaries act as obstacles to slip dislocations causing dislocations to pile up on their slip planes behind the boundaries but others said that grain boundaries...

14 February 2017 1,773 2 View