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Metal structure
Question | Answer |
---|---|
Intergranular | metal breaking in between the grains |
transgranular | metal breaking through the grains |
Dendrites | the skeleton of crystals, they grow when cooling metal solidifies, grow until they meet another grain boundary |
Crystal Nucleus | the unit cell that forms when atoms move together as a metal begins to cool |
unit cell | The smallest repeating cell in a crystal structure |
three main types of bonding | ionic, covalent, metallic |
Iconic bonding | electrostatic attractive forces between ions of opposite charge, positive and negative |
Covalent bonding | sharing of electrons between atoms |
Large grains | are weaker and fail easier |
small grains | stronger and harder but less ductile |