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1 results about "Physical metallurgy" patented technology

Physical metallurgy is one of the two main branches of the scientific approach to metallurgy, which considers in a systematic way the physical properties of metals and alloys. It is basically the fundamentals and applications of the theory of phase transformations in metal and alloys, as the title of classic, challenging monograph on the subject with this title . While chemical metallurgy involves the domain of reduction/oxidation of metals, physical metallurgy deals mainly with mechanical and magnetic/electric/thermal properties of metals – treated by the discipline of solid state physics. Calphad methodology, able to produce Phase diagrams which is the basis for evaluating or estimating physical properties of metals, relies on Computational thermodynamics i.e. on Chemical thermodynamics and could be considered a common and useful field for both the two sub-disciplines.

Physical metallurgy knowledge graph guided laser cladding wear-resistant coating design method

This invention provides a laser cladding wear-resistant coating design method guided by a physical metallurgical knowledge graph, relating to the fields of nickel-based alloy wear-resistant coating design and machine learning applications. First, data is collected, and the data is divided into training and test sets using a multiple hold-out method. A graph neural network model guided by a physical metallurgical knowledge graph is established based on the training set. The graph neural network model with a squared correlation coefficient greater than 90% is used as the objective function in the genetic algorithm. The optimized composition, process, and material with the best target performance are obtained. This method introduces physical metallurgical mechanisms into a statistical graph neural network algorithm in the form of a knowledge graph, further improving the prediction accuracy of the machine learning model. Simultaneously, the combination with optimization algorithms makes the alloy design process more efficient, and the design results more consistent with the principles of physical metallurgy.
Owner:NORTHEASTERN UNIV CHINA