ENGINEERING METALLURGY Parti APPLIED PHYSICAL METALLURGY Sixth Edition RAYMOND A. HIGGINS B.Sc (Birm.), C.Eng., F.I.M. Formerly Senior Lecturer in Metallurgy, West Bromwich College of Commerce and Technology; sometime Chief Metallurgist, Messrs Aston Chain and Hook Co., Ltd., Birmingham; and Examiner in Metallurgy to the Institution of Production Engineers, The City and