机械合金化法制备Ti_(50)Ni_(15)Cu_(28)Sn_7非晶合金粉末
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摘要
以一定比例配置Ti、Ni、Cu、Sn金属粉末,利用机械合金化方法在转速为300 r/min、球料比为12∶1的条件下制备Ti_(50)Ni_(15)Cu_(28)Sn_7非晶合金。采用XRD和SEM对不同球磨时间混合粉末的物相结构和形貌进行分析。并对合金粉末进行了DSC分析。结果表明:经过不同时间球磨之后,混合的金属粉末开始出现合金化及不同程度的非晶化。随着球磨时间的增加,粉末颗粒逐渐细化。球磨80 h后,合金粉末全部转变为非晶合金,且具有较高的热稳定性和非晶形成能力。
To make up Ti, Ni, Cu and Sn metal powders in a certain proportion, Ti_(50)Ni_(15)Cu_(28)Sn_7 amorphous powders were fabricated by mechanical alloying at rotational speed of 300 r/min and ball-to-powder ratio of 12∶1. The effects of ball milling time on the phase composition and morphology of mixed powders were studied by X-ray diffraction and SEM. The DSC analysis was carried out on the alloy powder. The results show that, the mixed metal powder begins to show alloying and different degrees of amorphization after milling for different time. With the increase of milling time, the powder particles gradually refine. After 80 h ball milling, the alloying powder fully transforms into amorphous alloy, which has higher thermal stability and amorphous forming ability.
To make up Ti, Ni, Cu and Sn metal powders in a certain proportion, Ti_(50)Ni_(15)Cu_(28)Sn_7 amorphous powders were fabricated by mechanical alloying at rotational speed of 300 r/min and ball-to-powder ratio of 12∶1. The effects of ball milling time on the phase composition and morphology of mixed powders were studied by X-ray diffraction and SEM. The DSC analysis was carried out on the alloy powder. The results show that, the mixed metal powder begins to show alloying and different degrees of amorphization after milling for different time. With the increase of milling time, the powder particles gradually refine. After 80 h ball milling, the alloying powder fully transforms into amorphous alloy, which has higher thermal stability and amorphous forming ability.
引文
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[2]Schwarz R B,Koch C C.Formation of amorphous alloys by the mechanical alloying of crystalline powders of pure metals and powders of intermetallics[J].Applied Physics Letters,1986,49(3):146-148.
[3]Dong H K,Hong H S,Sun J K,et al.Photocatalytic behaviors and structural characterization of nanocrystalline Fe-Doped TiO2synthesized by mechanical allying[J].Journal of Alloys&Compounds,2004,375(1):259-264.
[4]赵少凡.Ti基块体非晶及含Ti高熵块体非晶合金制备与性能研究[D].北京:清华大学,2015.
[5]Bououdina M,Guo Z X.Characterization of structural stability of(Ti(H2)+22Al+23Nb)powder mixtures during mechanical alloying[J].Materials Science&Engineering A,2002,332(1):210-222.
[6]Oanh N T H,Viet N H,Dudina D V,et al.Structural characterization and magnetic properties of Al82Fe16TM2,(TM:Ti,Ni,Cu)alloys prepared by mechanical alloying[J].Journal of Non-Crystalline Solids,2017,468:67-73.
[7]王京夫.碳元素掺杂对铝基非晶形成的影响[D].济南:济南大学,2013.
[8]陈维平,刘建锋,杨超.机械合金化制备TiCuNiSnTa非晶粉末的研究[J].热加工工艺,2010,39(6):61-64.
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[10]李元元,杨超,李小强,等.放电等离子烧结-非晶晶化法合成钛基块状非晶复合材料[J].中国有色金属学报,2011,21(10):2305-2323.
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[12]许志营.块体Ti基非晶合金SPS烧结制备技术工艺研究[D].秦皇岛:燕山大学,2013.
[13]朱玉英.机械合金化制备TiAl基非晶合金及其放电等离子烧结工艺研究[D].秦皇岛:燕山大学,2015.
[14]张纯.机械合金化制备Ti基非晶合金粉体[D].秦皇岛:燕山大学,2010.