Development of a database system for operational use in the selection of titanium alloys

Yuan-fei Han1),Wei-dong Zeng1),Yu Sun1),and Yong-qing Zhao2) 1) State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi’an 710072,China 2) Northwest Institute for Nonferrous Metal Research,Xi’an 710016,China

摘 要：The selection of titanium alloys has become a complex decision-making task due to the growing number of creation and utilization for titanium alloys,with each having its own characteristics,advantages,and limitations.In choosing the most appropriate titanium alloys,it is very essential to offer a reasonable and intelligent service for technical engineers.One possible solution of this problem is to develop a database system（DS） to help retrieve rational proposals from different databases and information sources and analyze them to provide useful and explicit information.For this purpose,a design strategy of the fuzzy set theory is proposed,and a distributed database system is developed.Through ranking of the candidate titanium alloys,the most suitable material is determined.It is found that the selection results are in good agreement with the practical situation.

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