Malleable iron is cast as
white iron, the structure being a metastable carbide in a pearlitic matrix.
Through an annealing heat treatment, the brittle structure as first cast is
transformed into the malleable form. Carbon agglomerates into small roughly
spherical aggregates of graphite leaving a matrix of ferrite or pearlite
according to the exact heat treatment used. Three basic types of malleable iron
are recognized within the casting industry: blackheart malleable iron,
whiteheart malleable iron and pearlitic malleable iron.
In the present book, fifteen typical
literatures about soft metal published on international authoritative journals
were selected to introduce the worldwide newest progress, which contains
reviews or original researches on Metalworking, Archaeometallurgy , Bare metal
stents, Heavy Metal Stress, Dissimilar welding, etc. We hope this book can
demonstrate advances in malleable metal as well as give references to the
researchers, students and other related people.