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This book is written as an undergraduate course in phase transformations for final year students specializing in metallurgy, materials science or
# B7 l2 q) `6 X) wengineering materials. It should also be useful for research students interested in revising their knowledge of the subject. The book is based on0 s- r' C/ _& i( N1 {
lectures originally given by the authors at the University of Lulel for engineerins students specializing in engineering materials. Surprisingly we! b0 t( Y, o5 i. k q
found no modern treatments of this important subject in a form suitable for a course book, the most recent probably being P.G. Shewmon's Tramformations% f( V/ B3 E( E% m/ Z
in Metals (McGraw-Hilt, 1969). There have, however, been some notable developments in the subject over the last decade, particularly in
8 x0 m Y, a" `6 @' istudies of interfaces between phases and interface migration, as well as the kinetics of precipitate growth and the stability of precipitates. There have
% B9 v/ a: O+ i% P5 b- Halso been a number of important new practical developments based on phase transformations, including the introduction of TRIP steels (transformation: \( L! f3 x8 g( e
induced by plastic deformation). directionally aligned eutectic composites. and sophisticated new structural steeIs with superior weldability
) n; s& O; d& Vand forming properties. to mention just a few. In addition. continuous casting and high speed, high energy fusion welding have emerged strongly in
" T1 |- _* G& rrecent years as irnportan t production applications of solidification. It was the objective of this course to present a treatment of phase transformations in F8 s- o- m S) G* i5 e. w
which these and other new developments could be explained in terms of the basic principles of thermodynamics and atomic mechanisms. |
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