Sketch the microstructure of a Mg-Pb alloy with 50 wt% Pb that was slowly cooled from...

Sketch the microstructure of a Mg-Pb alloy with 50 wt% Pb that was slowly cooled from 700°C.

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Expert Solution

Pb lattice is arranged in FCC (Face Centered Cubic unit cell) and Mg lattice in HCP ( Hexagonal Closed Packed unit cell).

Pb crystal lattice is soft in nature so that it can be easily modified according to choice at different temperature and concentration with hard Mg crystal lattice to make an alloy of different concentration. At 700°C because of the high kinetic energy of Pb atoms constituents particle will be in the high vibronic state and while cooling down the kinetic energy will slowly decrease and it will attain its crystal structure with proper orientation of constituent particles of Pb and Mg in the alloy.

queen_honey_blossom answered 1 year ago

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