粉末冶金钛基层状材料研究进展

Progress of titanium-based laminated materials by powder metallurgy

日益严苛的服役环境对钛材性能提出新的要求与挑战,层状结构的引入使钛基材料突破强度–韧性的桎梏有了新的思路。近年来,钛基层状结构材料成为研究热点,通过不同制备技术获得的钛基层状结构材料展现出了优异的力学性能。粉末冶金技术具有工艺简便、高效,易于实现组元调控与钛材性能优化等优点。本文对目前钛基层状材料的类型、主流制备技术进行阐述,着重介绍了粉末冶金钛基层状材料的研究进展,总结了高性能钛基层状结构的强韧化机制,最后对钛基层状结构材料的基础研究与实际应用进行了展望。

Based on the increasingly severe working environment,properties of titanium materials are facing the new challenges as the superior combination of strength and ductility.The design of laminated structure provides a new idea to achieve the remarkable strength-ductility enhancement of titanium-based materials.In recent years,titanium-based laminated materials have become the research hotspot.Titanium-based laminated materials obtained by different preparation techniques show excellent mechanical properties.Powder metallurgy technology has numerous advantages of simple and efficient process,by which the component control and the optimization of mechanical properties can be easily achieved.The main types and metallurgical processing of titanium-based laminated materials were described in this paper.The research progress of titanium-based laminated materials obtained by powder metallurgy was introduced,and strengthening and toughening mechanism of the high-performance titanium-based laminated structure materials was summarized.Finally,the basic research and practical application of the titanium-based laminated materials were prospected briefly.