I only really deal with it in rocks. The same physics applies to all metals (and other materials!). There's a huge amount of metallurgy research though - look for stuff on young's modulus, bulk modulus and shear modulus. P wave velocities (sound wave, acoustic wave, compression wave - all mean the same thing) aren't used as much in metal analysis, but they are used. You can use the moduli and density data to work out how P wave will respond though.