非晶态钎料—非晶合金作为功能材料应用的新思路

Amorphous filler metal—new consideration for metallic glass as functional material

非晶态钎料具有长程无序、近程有序的结构特点,使它具有许多优异的性能,如高硬度、高强度、强耐蚀性等。同时,获得的薄带状钎料适用于窄间隙焊接,在宇航、军工、体育器材、电子仪表等领域中具有较广泛的应用前景。为阐明非晶态钎料在钎焊发展过程中的重要意义,综合评述了非晶态钎料的成分优化设计,钎料特性、钎焊工艺及方法等方面的研究进展和面临的挑战,并指出该领域今后的发展方向。

As a new type of filler metal,amorphous alloy has the liquid-like structure,i.e.long-range disorder and short-range order.Such structural featureenables multiple advantages including high strength,hardness,and corrosion resistance et al.Quenched ribbons can also used for narrow-gap welding.The amorphous filler metal shows prospect in fields such as aerospace,military industry,sport equipment,and electronic instrument and so on.In order to illustrate the significance of amorphous filler metal for the development of brazing technology,the research progress in aspects of composition optimization,characterization of filler metals,processes and methods was reviewed.The faced challenges and investigation tendency of amorphous filler metals were also summarized.