Metallurgical Failure Analysis: Techniques and Case Studies

ISBN-13: 9780128143360 / Angielski / Miękka / 2018 / 294 str.

Kannadi Palankeezhe Balan

Opis

Metallurgical Failure Analysis: Techniques and Case Studies explores how components fail and what measures should be taken to avoid future failures. The book introduces the subject of failure analysis through two major parts. Part 1 deals with the 'Fundamentals and Methodology of Failure Analysis'. The mode of failure is an important aspect of any failure analysis. This is understood by the study of fracture surface. Hence in this part a chapter is devoted to fracture and fractography of metals and alloys. In addition, the tools and techniques used in a failure investigation are briefly described as a separate chapter. Part 2 is devoted to 'Case Studies'. A total of 37 case studies on high performance engineering components are discussed. Each case study is described through its background followed by experimental results comprised mainly of visual examination, fractographic examination, metallographic examination, hardness measurements and chemical analysis. Necessary illustrations and evidence obtained through test results are amply provided for better understanding of the cases. The results obtained are then thoroughly discussed and finally a conclusion is drawn. Wherever possible, suitable remedial measures are suggested. The various case studies are classified according to the major causes of failures. The case studies pertain to: Improper Material Selection, Manufacturing Defects, Casting Defects, Overload, Fatigue, Corrosion Induced Failures, Hydrogen Embrittlement and Stress Corrosion Cracking, Wear and Elevated Temperature Failures. The book contains information gathered over three decades of the author's experience in handling a variety of failure cases and will go a a long way in inspiring practicing failure analysts to accept professional challenges besides gaining higher knowledge in the field. The book is designed to be useful for scientists, metallurgists, engineers, quality control inspectors, professors and students of mechanical, material science and metallurgical engineering courses..

• Gain knowledge of fundamentals and methodology of failure analysis
• Understand major causes of component failures
• Learn systematic approach to investigation and arrive at the cause of a failure

Recenzje

"People involved in metallurgical failure analysis might find the various case studies useful, e.g., identifying certain reagents used as chemical etchant to enhance grain boundary, structures for imaging, or other analysis details used in EXAX and SEM methods, when performing your own failure analysis." --IEEE Electrical Insulation Magazine

Spis treści

Part 1 Fundamentals and Methodology1. Introduction2. Fracture3. Tools and Techniques Used in Failure Analysis

Part 2 Case Studies4. Improper Material Selection5. Manufacturing Defect6. Casting Defects7. Overload8. Fatigue9. Corrosion Induced Failures10. Hydrogen Embrittlement and Stress Corrosion Cracking11. Wear12. Elevated Temperature Failures13. Bibliography

O autorze

Dr. K. P. BALAN obtained his M.Tech., from IIT, Kharagpur and Ph.D from Banaras Hindu University, Varanasi in Metallurgical Engineering. In 1982, he joined the Defence Metallurgical Research Laboratory (DMRL), Hyderabad, India, working in the area of Failure Analysis. He has held the post of Scientist 'G' and head of 'Structure and Failure Analysis Group' in DMRL, Hyderabad. Dr. Balan has handled over 500 failure case studies pertaining to defence hardware, railways, thermal power stations, mines etc. Besides failure analysis he has handled Research and Development projects on enhancement of life of small arms barrels, pneumatic and hydraulic pipes for submarines and bearing steels for aerospace applications. He has also carried out metallurgical investigations of over 2000 metallic components of weapons and weapon systems for their indigenization. The recommendations given through his failure analysis have helped in imparting new lease of life to a number of components and systems at various stages of manufacture and operation, thus saving large amount of revenue for the country. Suggestions made through his failure analysis have helped in avoiding future recurrence of similar failures.
Dr. Balan has been a member of some of the renowned Indian national committees that addressed failure cases of strategic importance. He has been a member of the Materials Standardisation Sub-Committee under the Directorate of Standardization, and the Sectional committee on Microstructure and Heat Treatment under the Bureau of Indian Standards and has also been a member of Metallurgical Engineering Division Council, of the Bureau of Indian Standards. He has numerous publications to his credit in national and international journals and conference proceedings on topics related to failure analysis and structure-property correlations in steels.