利用微波加热法制备了316L不锈钢纤维毡。研究了微波烧结工艺对材料微观结构和力学性能的影响。研究表明,与传统烧结工艺相比,微波烧结工艺降低了材料的烧结温度,缩短了烧结时间,由此抑制了纤维杆上晶粒的生长,材料的力学性能也得到了提升。微波电磁场在金属纤维间引发的微电弧可起到加快烧结进程的作用。 316L stainless steel fiber mat was prepared by microwave heating method. The effects of microwave sintering process on the microstructure and mechanical properties of the material were studied. The results show that, compared with the traditional sintering process, the microwave sintering process reduces the sintering temperature of the material and shortens the sintering time, thereby restraining the growth of the grains on the fiber rod and improving the mechanical properties of the material. Micro-arc induced by microwave electromagnetic field between metal fibers can play a role in accelerating the sintering process.