This book is dedicated to the memory of Professor DANIEL HANSON (1892-1953) of Birmingham University who played a major role in modernising the teaching of Metallurgy and thereby helped clear the ground for the emergence of Materials ScienceThis book is dedicated to the memory of Professor DANIEL HANSON (1892-1953) of Birmingham University who played a major role in modernising the teaching of Metallurgy and thereby helped clear the ground for the emergence of Materials Science