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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
6 u# @, ~1 j# j; C. ]: ]engineering materials. It should also be useful for research students interested in revising their knowledge of the subject. The book is based on
, O1 ^: o3 ?8 Ylectures originally given by the authors at the University of Lulel for engineerins students specializing in engineering materials. Surprisingly we
% c3 L3 f6 R0 G2 ~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
% r, `) N1 t4 B4 V3 l6 {2 Tin Metals (McGraw-Hilt, 1969). There have, however, been some notable developments in the subject over the last decade, particularly in
6 S0 p0 U6 D% ustudies of interfaces between phases and interface migration, as well as the kinetics of precipitate growth and the stability of precipitates. There have
4 |8 b1 @' d0 ^also been a number of important new practical developments based on phase transformations, including the introduction of TRIP steels (transformation
7 Y+ h6 g# s6 |6 \& rinduced by plastic deformation). directionally aligned eutectic composites. and sophisticated new structural steeIs with superior weldability
- b- B# r' i+ m5 cand forming properties. to mention just a few. In addition. continuous casting and high speed, high energy fusion welding have emerged strongly in
8 {: _# G( g+ ^3 n" {5 xrecent years as irnportan t production applications of solidification. It was the objective of this course to present a treatment of phase transformations in
2 X4 w: |9 D% t3 | Zwhich these and other new developments could be explained in terms of the basic principles of thermodynamics and atomic mechanisms. |
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发表于 2009-1-29 16:35:39
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