Laser shock peening Performance and process simulation - Hardcover

Hardcover

ISBN 10: 0849334446 ISBN 13: 9780849334443

Publisher: CRC Press, 2006

Synopsis

Laser shock peening (LSP) is a process for inducing compressive residual stresses using shock waves generated by laser pulses. It is a relatively new surface treatment for metallic materials that can greatly improve their resistance to crack initiation and propagation brought on by cyclic loading and fatigue. This book, the first of its kind, consolidates the scattered knowledge about LSP into one comprehensive volume. It describes the mechanisms of LSP and its substantial role in improving fatigue performance in terms of modification of microstructure, surface morphology, hardness, and strength. In particular, it describes numerical simulation techniques and procedures that can be adopted by engineers and research scientists to design, evaluate, and optimize LSP processes in practical applications.

About this title

Review

This is the first book to consolidate disparate knowledge on the subject into one comprehensive publication., World of Metallurgy - ERZMETALL

From the Back Cover

Laser shock peening (LSP) is an innovative surface treatment technique, which has been successfully applied to improve fatigue performance of metallic components. The key beneficial characteristic after LSP treatment is the presence of compressive residual stresses beneath the treated surface of metallic materials, mechanically produced by high magnitude shock waves induced by a high-energy laser pulse. Compared with the traditional shot peening (SP) process LSP can produce high magnitude compressive residual stresses of more than 1 mm in depth, 4 times deeper than traditional SP.

LSP has been intensively investigated in the last two decades with over 100 scientific papers and reports. Most studies and investigations are based on experimental approaches, focusing on understanding mechanisms of LSP and its influences on mechanical behaviours and in particular enhanced fatigue performance of treated metallic components. In most cases, there was a lack of comprehensive documentation in the relevant information in applications of LSP for various metallic alloys, such as materials properties, component geometry, laser sources, LSP parameters, and distribution of 3-D residual stresses. However, some comprehensive modelling capacities based on analytical models and dynamic finite element models (FEM) have been established for simulating LSP in the last decade, which provide unique tools for evaluation of LSP and optimization of residual stress distributions in relation to materials properties, component geometry, laser sources, and LSP parameters. Those approaches can play significant roles in design and optimization of LSP processes in practical applications.

Laser shock peening; Performance and process simulation consolidates the knowledge and experience in a comprehensive publication for the first time. It describes the mechanisms of LSP and its substantial roles in improving microstructure, surface morphology, hardness, fatigue life and strength, and stress corrosion cracking. In particular, it comprehensively describes simulation techniques and procedures with some typical case studies, which can be adopted by engineers and research scientists to design, evaluate and optimize LSP processes in practical applications.

It will be of particular interest to engineers and scientists who are working on development of valued-added surface treatment for critical metallic components such as turbine components and fastened joints in aerospace, marine and automotive applications.

Edition details

• Publisher: CRC Press
• Publication date: 2006
• Language: English
• ISBN 10: 0849334446
• ISBN 13: 9780849334443
• Binding: Hardcover
• Edition number: 1
• Number of pages: 162
• Editor: Ding K., Ye L.