7th quiz

What does the process of crystallization of metals mean?

• the process of changing from solid to liquid

• the process of changing from liquid to solid

• the process of changing from liquid to gas

What deffects do you know?

• point, line, volume

• Point, line defects

• vacancy

what types of solid solution do you know?

• solidification, interstitial

• substitutional, interstitial

• nucleation, interstitial

in which case a substitutional solid solution occurs?

• When the difference between the atomic radii of two elements does not exceed 15%

• When the difference between the atomic radii of two elements exceeds 15%

• When the difference between the atomic radii of two elements does not exceed 59%

select the crystal structure that is commonly found in metallic materials

• BBC, FBC, HCP

• BCC, FCC, HCP

• BBC, FCC

in which case a substitutional solid solution occurs?

• Much difference in electronegativity

• No much difference in electronegativity

• Electronegativity does not affect the type of solid solutions

Choose the stage of crystallization

• Nucleation, growth of nuclei

• Nucleation, growth of nuclei, formation grain boundaries

• Nucleation, formation grain boundaries

What is critical size during solidification process?