Fracture Behaviour of Cu-Strengthened HSLA Steel - Das, Swapan Kumar
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The deformation behaviour of a material is controlled by its microstructure. Since the event of fracture is essentially an extension and, in a sense, culmination of the processes initiated during deformation, microstructure has profound effect on fracture behaviour of materials. Modern engineering design approach demands characterisation of material behaviour based on different fracture mechanics parameters. The influence of Cu precipitation and microstructural constituents on fatigue crack growth and fracture behaviour of Cu-strengthened HSLA steels has not been explored much. In this study,…mehr

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Produktbeschreibung
The deformation behaviour of a material is controlled by its microstructure. Since the event of fracture is essentially an extension and, in a sense, culmination of the processes initiated during deformation, microstructure has profound effect on fracture behaviour of materials. Modern engineering design approach demands characterisation of material behaviour based on different fracture mechanics parameters. The influence of Cu precipitation and microstructural constituents on fatigue crack growth and fracture behaviour of Cu-strengthened HSLA steels has not been explored much. In this study, descriptions of various microstructures have been obtained through detailed scanning and transmission electron microscopy. An attempt was made to assess evolution of microstructure by magnetic techniques, phase change by differential scanning calorimetry and correlate them with direct observation techniques. Variations in fatigue crack growth rate (FCGR), J-R curve, blunting-line slope and stretch zone width (SZW) for variation of microstructure in Cu-strengthened HSLA-100 steel has been investigated.
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Autorenporträt
Dr. Swapan Kumar Das, obtained PhD in Metallurgy & Materials Engineering from Indian Institute of Engineering Science and Technology (IIEST), Shibpur, India in 2008 after doing Master of Engineering in Metallurgical Engineering from IIEST in 1996. He is currently working as Principal Scientist at the CSIR-National Metallurgical Laboratory,India.