Data on diffusion kinetics of superalloys is crucial for gaining a thorough understanding of the mechanisms underlying the phase transition and microstructural evolution of superalloys.Further,it is the basis for the design and development of novel Co and Nb-Si-based superalloys.Herein,the common elements used in preparing superalloys and their corresponding functions are systematically summa-rized.In addition,the contribution of our research group in the establishment and improvement of data-bases on multicomponent diffusion kinetics of novel Co and Nb-Si-based superalloys is presented in de-tail.Furthermore,the machine learning method for self-diffusion coefficient and impurity diffusion coeffi-cient,the experimental method for mutual diffusion coefficients,and the molecular dynamics method for tracer diffusion coefficients in the alloy systems are briefly discussed.In addition to providing a brief intro-duction of the applications of the databases in the simulation of microstructural evolution and alloy design,an outlook on the development of the databases on diffusion kinetics and related applications is presented.
维普
万方数据