To begin with, it is important for you to understand the type of steel you are studying and the treatment you are applying to determine the ultimate phase transformation, whether it be bainite, perlite, or martensite.
Identification of the structure can be identified by contact friction.
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Internal friction angle model of particles: autors Jiri Zegzulka1,2, Jan Necas1,2, Jiri Rozbroj1,2, DanielGelnar2 , Álvaro Ramírez‑Gómez3 & Lucie Jezerska1*