Han Tielong, Hou Chao, Sun Yaochuan, Li Yurong, Song Xiaoyan
Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing 100124, China.
Nanomaterials (Basel). 2023 Jan 18;13(3):386. doi: 10.3390/nano13030386.
W-Cu composites are commonly subjected to coupled multiple fields in service, which imposes high requirements on their overall performance. In this study, the ultrafine-grained W-Cu composite was fabricated using the combination of electroless plating and spark plasma sintering. The wear resistance and high-temperature compressive properties of the ultrafine-grained W-Cu composite were investigated and compared with those of the commercial coarse-grained counterpart. Moreover, the underlying strengthening and wear mechanisms were also discussed. Here we show that the ultrafine-grained W-Cu composite exhibits superior integrated mechanical performance, making it a potential alternative to commercial W-Cu composites.
W-Cu复合材料在服役过程中通常会受到多种场的耦合作用，这对其整体性能提出了很高的要求。在本研究中，采用化学镀和放电等离子烧结相结合的方法制备了超细晶粒W-Cu复合材料。研究了超细晶粒W-Cu复合材料的耐磨性和高温压缩性能，并与市售粗晶W-Cu复合材料进行了比较。此外，还讨论了其潜在的强化和磨损机制。在此我们表明，超细晶粒W-Cu复合材料具有优异的综合力学性能，使其成为市售W-Cu复合材料的潜在替代品。
