【摘要】 采用熔淬法制备SmFe₉合金，通过合金相组分和表面形貌分析，研究了熔炼时Sm的质量分数及熔体快淬时铜辊的转速对单一相SmFe₉制备的影响，并探究了Ti、Co、V掺杂对SmFe₉合金热稳定性的影响。实验结果表明，Sm含量的降低及淬速的提高都有利于SmFe₉相的生成，当Sm含量为22.3 wt%左右，辊速为51.84 m/s以上时即可形成具有单一相的SmFe₉合金。在元素掺杂方面，相对于Co和V而言，Ti掺杂对于提高SmFe₉的热稳定性具有积极作用，可以减少SmFe₉合金的高温分解，抑制α-Fe的析出。更多还原

【Abstract】 SmFe₉ alloy was prepared by melting quenching method. The influence of the mass fraction of Sm during melting and the speed of copper roller during rapid quenching on the preparation of single phase SmFe₉ alloy was studied through analysis of alloy phase composition and surface morphology. The influence of Ti, Co, and V doping on the thermal stability of SmFe₉ alloy was also investigated. The results showed that reducing the Sm content and increasing the quenching speed were favorable to forming the SmFe₉ alloy, and SmFe₉ alloy with a single phase could be prepared when the content of Sm was about 22.3 wt% and the quenching speed was above 51.84 m/s. In terms of element doping,compared with Co and V, Ti had a positive effect on improving the thermal stability of SmFe₉ alloy. Its addition could reduce the decomposition of SmFe₉ alloy at high temperatures and inhibit the precipitation of α-Fe.更多还原