With the current surge in national economy the industrial traffic has increased many folds in terms of quantity of load and traffic volume.
Microstructure and Properties Doctoral thesis. High-carbon martensite is normally brittle. In this thesis, it has been demonstrated that this apparent anomaly is due to the fine size of the martensite plates.
The mechanical properties of these steels are due to the transformation of retained austenite into martensite during deformation and hence appear to be dominated by the volume fraction and carbon content of retained austenite.
These parameters have been related to the chemical composition and heat treatment of the steels with neural networks, using published data. An optimum alloy was formulated by combining the neural network with a genetic algorithm, to minimise the silicon addition whilst maximising the retained austenite fraction.
Transformation of austenite into martensite during deformation ceases beyond a critical strain. A theory has been developed to predict this limit. Calculations using the theory indicate that the high-carbon austenite in these steels may transform into martensite due to stress, rather strain.
These materials are often tested for stretch-flangeability, a measure of formability. Neural network analysis of the published data revealed the ultimate tensile strength to be the most important tensile parameter influencing stretch-flangeability.- Volume 52, Issue May-JuneEffects of reaction conditions on the shape and crystalline structure of cellulose nanocrystals.
The patterns in which atoms are arranged in the solid state determine properties. These arrangements can be manipulated by altering parameters such as the chemical composition, temperature and magnetic field. A phase transformation is a change in the pattern of atoms.
We work on phase transformations and the relationship between structure and properties. Sourabh Chatterjee (Mody University of Science and Technology, India) In his doctoral thesis under the title, “Asian Ideas of East and West”, Stephen Hay opined that Tagore‟s visit to China was a failure and Tagore himself was responsible for it as he tried to play the role of a.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research. Stress and strain induced martensite in a Fe-Ni-C steel: Thermodynamics, kinetics, morphology and formation mechanisms.
Thesis. Nov ; Sourabh Chatterjee; View. Chatterjee Thesis - Ebook download as PDF File .pdf), Text File .txt) or read book online. thesis.