摘要
基于传统成分设计理念提出新的“近混合焓+有效原子尺寸差”组元不平衡扩散设计思想,并首次应用于钛基非晶态合金粉末设计,通过机械合金化法成功制备出Ti_(60)Mn_(20-x)Cu_(20+x)(x=0,10)非晶态合金粉末,并对合金系的非晶形成能力、热稳定性和微观形貌进行研究。结果表明,“近混合焓+有效原子尺寸差”组元不平衡扩散设计思想能够实现Ti-Mn-Cu合金系组元成分的优化设计,Ti_(60)Mn_(20-x)Cu_(20+x)(x=0,10)合金粉末均具有良好的非晶形成能力和较高的热稳定性能;相较于Ti_(60)Mn_(20)Cu_(20)合金粉末,Ti_(60)Mn_(10)Cu_(30)合金粉末更易形成非晶态合金粉末,该结论与非晶形成能力理论模型预测结果一致。
Based on the traditional composition design concept,a new design concept of“near-mixing enthalpy+effective atomic size difference”component imbalance diffusion was proposed in this paper,and it was first used to design the titanium-based amorphous alloy powders.Titanium-based amorphous alloy powders,Ti_(60)Mn_(20-x)Cu_(20+x)(x=0,10),were successfully prepared by mechanical alloying method,and the amorphous forming ability,thermal stability,and microstructure of this alloy system were conducted.The results indicate that the new design concept of“near-mixing enthalpy+effective atomic size difference”component imbalance diffusion can realize the optimized design of the component compositions for the Ti‒Mn‒Cu alloy system.The Ti_(60)Mn_(20-x)Cu_(20+x)(x=0,10)alloy powders exhibit good amorphous forming ability and high thermal stability.Compared to Ti_(60)Mn_(20)Cu_(20),Ti_(60)Mn_(10)Cu_(30)forms the amorphous alloy powders more easily,which is consistent with the results predicted by the t heoretical model of amorphous forming ability.
作者
夏浙源
陈志辉
李嘉诚
邹泽昌
陈学永
唐翠勇
XIA Zheyuan;CHEN Zhihui;LI Jiacheng;ZOU Zechang;CHEN Xueyong;TANG Cuiyong(School of Mechanical and Electrical Engineering,Fujian Agriculture and Forestry University,Fuzhou 350002,China;College of Mechanical and Intelligent Manufacturing,Fujian Chuanzheng Communications College,Fuzhou 350002,China)
出处
《粉末冶金技术》
北大核心
2025年第5期633-640,共8页
Powder Metallurgy Technology
基金
福建省自然科学基金资助项目(2019J01404)
福建省技术创新重点攻关及产业化资助项目(2023XQ005)。
关键词
机械合金化
钛基非晶态合金
非晶形成能力
优化设计
mechanical alloying
titanium-based amorphous alloys
amorphous forming ability
optimal design
