基于LDA模型的钢铁材料专利技术主题演化研究

面对新科技革命背景下产业发展高端化、用钢需求多元化的挑战，明确钢铁材料及其技术发展态势，对实现新科技革命与钢铁产业高质量可持续发展的深度耦合具有重要意义。研究从主题演化角度出发，借助LDA模型全面挖掘钢铁材料技术主题及其发展趋势，最终提炼钢铁材料发展特征及未来发展方向。研究表明，我国钢铁材料及技术多集中于基础性研究；材料性能将以高性能、复合化、低维化、智能化为重点，材料类型由结构性向功能性材料延伸的趋势；未来将从市场、技术、资源角度出发，进入钢铁材料智慧设计、智慧生产与智慧服务的新时代。

Evolution of Patented Technology Topics of Steel Materials Based on LDA Model

Faced with the challenges of high-end industrial development and diversified steel demand in the context of the new technology revolution, clarifying the development trend of steel materials and their technologies is of great significance for the deep coupling of the new technology revolution and the high-quality development of the steel industry.The research uses the LDA model to comprehensively explore the technological topics of steel materials and their development trends, and finally refine the development characteristics and future development of steel materials. It indicates that the research on steel materials are mostly focused on upstream-basic research.The performance of steel materials will focus on high performance,composite, low-dimensional, and intelligent.The types of materials tend to extend from structural materials to functional materials.It will start from the perspective of market, technology and resources, and enter a new era of intelligent design, intelligent production and intelligent service of steel materials in the future.