Welding Stress Relief by Explosion Treatment

by V. G. Petushkov, Yu. I. Fadeenko

isbn 0-9644311-1-4 US$149.00 :: ©1999 Cloth Hardbound :: 179 pages :: 7"x9"

The monograph presents the results of three decades long research and developments in the area of enhancing performance of welded joints by applying shock loads caused by miniature explosive charges for controlling residual welding stresses. The authors, who are world-leading experts in this field, discuss all main aspects of the explosion treatment techniques and their effects on residual stresses, mechanical properties and reliability of welded joints. The book is intended for industrial and welding specialists interested in improving performance and maintenance of structures, for research staff, professors and graduate students.

• Chapter 1. outlines the role of residual stresses in the performance of welds, the existing methods of welding stress relief and prospects of the explosion treatment applications to production and maintenance of structures. The technique is especially prospective for maintenance in field conditions, in harsh environments, and for difficult-to-access welds.
• Chapter 2. describes the mechanics of shock wave effects in materials and welds, the stress-strain state during and after shock wave propagation, and basic schematics shock wave generation by controlled explosions.
• Chapter 3. presents the experimental results of residual stress relief efficiency.
• Chapter 4. demonstrates the explosion treatment effect on resistance to corrosion cracking, fatigue and brittle failure for welded joints made of varying structural steels and some non-ferrous alloys.
• Chapter 5. is a stand-alone insight into the physical metallurgy of metals under shock wave and thermal treatments.
• Chapter 6. outlines the practical examples of explosion treatment applications such as for large tanks of alumina production industry, pipelines, production and maintenance of heavy machinery parts, railroad bridges, die steels. It also outlines safety measures and mitigation of side effects.
• References.
• Index.