摘要
采用单辊快淬法制备出Fe74B20Ti6和Fe70B20Y4Ti6合金条带,通过X射线衍射仪(XRD)和差热分析仪(DTA)来研究Fe74B20Ti6和Fe70B20Y4Ti6合金的微观结构和热性能.实验结果表明,快淬速率为30 m/s时,Fe70B20Y4Ti6合金已完全形成非晶,而Fe74B20Ti6合金大部分形成非晶,有少量晶化相;其中Fe70B20Y4Ti6合金的过冷液相区宽度ΔTx高达66 K,说明Y元素的添加可以使合金具有较大的热稳定性,较强的玻璃形成能力.
Fe74B20Ti6 和Fe70B20Y4Ti6 alloys were prepared by water-cooled copper mold casting. Thermal behavior and microstrueture of Fe74 B20 Ti6 和Fe70 B20 Y4 Ti6 amorphous alloys were investigated by differential thermal analysis and X-ray diffraction. When the fast quenching rate was 30 m/s,Fe70B20Y4Ti6 alloys was fully formed amorphous, but Fe74 B20 Ti6 alloys were formed amorphous mostly and there was crystallization little. The supercooled liquid region △Tx of Fe70B20Y4Ti6 alloy were reached 66 K, which iudicated the Y addition can make the alloys has more the thermal and GFA.
出处
《吉林师范大学学报（自然科学版）》
2013年第1期111-113,共3页
Journal of Jilin Normal University:Natural Science Edition
基金
吉林省科技厅科技发展计划项目(201105083)
吉林省教育厅"十二五"科学技术研究项目(2011158)
关键词
铁基非晶合金
非晶形成能力
热力学参数
热性能
Fe-based amorphous alloy
glass forming
thermodynamic parameter
thermal stability
