激光增材制造高温合金复合材料研究进展

Research and Development in Superalloy Composites by Laser Additive Manufacturing

摘要:

本文对增材制造技术在高温合金复合材料中的研究进行了系统全面地梳理归纳，综述了增材制造高温合金复合材料的粉末混合、冶金过程以及强化机制，并且在增材制造高温合金复合材料显微组织、缺陷及其性能方面进行详细对比分析研究。在此基础上，分析了增材制造高温合金复合材料研究现状及进展，并且对高温合金复合材料新增强相设计、增强相添加方式及其对蠕变疲劳性能的影响机制等的研究进行了展望，本文将有利于对增材制造高温合金复合材料的研究和发展提供参考。

Abstract:

The research and development of additive manufacturing technology in superalloy composites are comprehensively summarized in this paper. The powder mixing, material metallurgical process and strengthening mechanism of superalloy composites made by additive manufacturing are systematically reviewed. Moreover, the microstructure, defects and the properties of superalloy composites of additive manufacturing are analyzed and compared in detail. On this basis, the research status of additive manufacturing superalloy composites is summarized, the directions of development in future are forecasted, including: the design of new strong phase, the addition mode of reinforcing phase and the influence mechanism of creep and fatigue properties of superalloy composites by laser additive manufacturing. This paper will be beneficial to the research and development of superalloy composites by additive manufacturing.