METALS AND ALLOYS 2

Cf californium metals are: harder, stronger, higher elastic limits
HARDENING EFFECT:as atoms of differing radii form mechanical resistance to dislocations
INSOLUBILITY OF METALS
1. Consequences: risk of electrolytic corrosion
PARTIAL SOLUBILITY OF METALS
1. Alloy has different phases:
2. Solid solution of metal B in metal A and vice versus
AFFINITY OF METALS
1. Form intermetallic compounds
2. precise chemical formation : as specific valence (bonds given atom has formed)
3. Few crystal imperfections- less potential for slip plane movement
4. Hard, brittle, low ductility
CHARACTERISATION OF METALS AND ALLOYS
1. USE OF COOLING CURVES
2. Temp vs Time. Tm = melting point
3. plateau = temp constant during crystalilisation
4. PHASE DIAGRAMS
  1. Larger the seperation between solidus and liquidus the greater the coring
  2. Alloy components insoluable in each other
5. To make structural and coring predictions

Resource summary

	Created by aahughes almost 11 years ago