Determination of Vacant Lattice Sites in Aluminium Alloys by X-ray Diffraction Technique

THE study of the structure of metals and alloys is
very important because this affords the possibility
of developing new alloys with improved properties
to be useful for meeting service requirements. Theories
based on ideal crystals fail miserably when applied to
real crystals of the metals and alloys, for example
the calculated Yield strength and breaking strength
of ideal crystals are 100 to 10,000 times more than the
observed strength of real crystals. The reason is that
the crystals contain many haws and irregularities, so
it is felt that a detailed knowledge of vacant lattice
sites in alloys will be useful, because of their effects
on physical and mechanical properties. The object of
this investigation is to find out the effect of copper
on the lattice parameter and vacant lattice sites in
aluminium.