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元素微调对机械合金化Al-Cu-Ti非晶合金成分优化的影响（英文）

Effect of element fitting on composition optimization of Al-Cu-Ti amorphous alloy by mechanical alloying
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摘要 为了将Al-Cu-Ti非晶合金中的晶体相含量降到最低,通过调整Cu和Ti元素的含量和球磨时间对Al65Cu35-xTix合金进行优化设计。研究结果表明:增加Ti元素的含量能够降低AlCu2Ti、Cu9Al4和Al2Cu等金属间化合物的含量;而延长球磨时间可以降低合金中元素相的含量,最终确定的最优成分为Al65Cu16.5Ti18.5。另外,所有优化合金中都存在TiH2相,这是由于在球磨作用下工程控制剂甲苯分解出的H原子与Ti元素反应生成了TiH2。TiH2在最优成分Al65Cu16.5Ti18.5合金中的体积分数为4.30%。 In order to minimize the crystal phase in Al-Cu-Ti amorphous powder,Al65Cu35-xTix amorphous powders were optimized via ball milling through adjusting the amount of Cu and Ti elements and the ball milling time.The results show that increasing the mole fraction of Ti can decrease the amount of Al Cu2Ti,Cu9Al4,and Al2Cu intermetallics formed during the process of ball milling;and prolonging the ball milling time can reduce the element crystalline phase to almost none.The optimal composition is determined to be Al65Cu16.5Ti18.5.TiH2 forms in all selected Al65Cu35-xTix amorphous powders during the process of optimization.H atom is decomposed from toluene and reacts with Ti during ball milling,leading to the formation of TiH2.The volume fraction of TiH2 in Al65Cu16.5Ti18.5 amorphous powder is measured to be 4.30%.
作者 谈震 薛云飞 程兴旺 张龙 陈为为 王鲁 张海峰 付华萌
机构地区 北京理工大学材料科学与工程学院 北京理工大学冲击环境材料技术国家重点实验室 中国科学院金属研究所沈阳材料科学国家实验室
出处 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2015年第10期3348-3353,共6页 中国有色金属学报（英文版）
基金 Projects(51271036,51471035,51101018)supported by the National Natural Science Foundation of China Project supported by the Program of"One Hundred Talented People"of the Chinese Academy of Sciences
关键词 Al基非晶合金 工艺优化 湿混 TiH2 Al-based amorphous alloy process optimization wet milling TiH2
分类号 TG139.8 [一般工业技术—材料科学与工程]
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参考文献21

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共引文献2

Transactions of Nonferrous Metals Society of China
2015年 第10期

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