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Full Description
Recent advances in industrial technology and the pursuit of high efficiency and productivity have been accompanied by contradictory requirements such as cost reduction, economies in energy and labour and process omission. In addition, many recent reports have described instances where structures have failed under quite low loads. When such a failure occurs it is necessary to clarify the cause, taking both a macro and microscopic approach, and to implement appropriate countermeasures. Written by internationally recognized specialists, this book covers a wide range of topics associated with application and testing methods for the assessment of risk and performance behavior. A reference for postgraduate students, lecturers and researchers working in this area, the text is designed to enhance the knowledge and appreciation of engineering integrity and its relevance to economic and strategic issues.
Contents
Chapter 1 Fatigue strength-1: Fatigue properties of auste nitic stainless steels Introduction; Experimental procedures; Rotary bending fatigue properties; Effect of Cr/Ni equivalent on fatigue crack initiation; Effect of aging on fatigue strength; Effects of overload and heat treatment on axial fatigue strength; Conclusions. Chapter 2 Fatigue strength-2: Fatigue properties of maraging steel Introduction; Strengthening mechanism of Maraging steel; Effect of reversion austenite on fatigue strength; Effect of surface modification on fatigue strength; Improvement of fatigue strength by a combination of microstructural control and surface modification; Concluding remarks. Chapter 3 Stress analysis of crack: Highly accurate analysis of stress intensity factors by the crack tip stress method in FEM; Introduction; Weak points of the extrapolation methods; Crack tip stress method; Applications of the crack tip stress method; Conclusions. Chapter 4 Fatigue crack propagation: On the history and application of the fatigue crack growth relation Introduction; Early research; Recent work; Applications; Concluding remarks. Chapter 5 Surface treatment-1: Characteristics of fatigue behavior of surface modified materials; Importance of surface modification; Fatigue behavior of ceramics coating steels in air; Corrosion fatigue behavior of ceramics coated steel; Fatigue behavior of anodized coating aluminium alloys; Fatigue crack initiation and growth of plasma-assisted duplex surface treated tool steel; Gigacycle fatigue behavior of shot-peened high-hardness steel. Chapter 6 Surface treatment-2: Improvement in fatigue limit of a notched specimen by local plastic deformation"; Improvement of fatigue limit of the round bar specimen witt a round V groove; Improvement of fatigue limit of plate specimen with a hole. Chapter 7 Environmental fracture: Macro- and micro-scopic approach to fracture of high strength steel notched bars; Introduction; Experimental program; Microscopic approach; Macroscopic approach; Conclusions. Chapter 8 Failure analysis: A role of macrofractography in fracture analysis; Introduction; Development of microfractography; Microfractography of hot forging dies; Microfractography of steam turbine blade; Microfractography of cargo oil tank structure of very large crude oil carrier; Concluding remarks. Chapter 9 Engineering applications: Fatigue life evaluations for components of power generating equipments and strength evaluation of semi-conductor devices. (part contents)
