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| 低温球磨制备5083超细铝合金及性能研究 | |
| 引用本文： | 马秀华,王为民,郭伟,贾铁昆,傅正义. 低温球磨制备5083超细铝合金及性能研究[J]. 人工晶体学报, 2009, 0(Z1) |
| 作者姓名： | 马秀华 王为民 郭伟 贾铁昆 傅正义 |
| 作者单位： | 武汉理工大学新材料复合技术国家重点实验室; |
| 基金项目： | 教育部博士点基金(No.20060497003);;武汉市晨光计划(B类) |
| 摘 要： | 本文采用低温球磨的方法制备了5083纳米晶铝合金,并用XRD、SEM和DSC等检测手段对样品粉末的微观结构、组织的变化过程和热稳定性进行了研究。结果表明:随着球磨的进行,球磨混合料中Mg相逐渐减少并逐渐固溶于Al中形成合金,粉末颗粒尺寸不断减小;球磨时间和球磨转速是影响合金结构和性能的主要因素,采用低温高速球磨能使合金纳米晶粒更加均匀,有利于Mg固溶于Al中;能谱分析和DSC分析表明,低温液氮球磨过程中形成的氧化物和氮氧化物颗粒对晶粒的钉扎一定程度的提高了5083铝合金的热稳定性。 |
| 关 键 词： | 低温球磨 微观结构 热稳定性 5083铝合金 |
Synthesis and Performance of Ultrafine 5083 Aluminum Alloy Powders by Cryomilling |
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| MA Xiu-hua,WANG Wei-min,GUO Wei,JIA Tie-kun,FU Zheng-yi. Synthesis and Performance of Ultrafine 5083 Aluminum Alloy Powders by Cryomilling[J]. Journal of Synthetic Crystals, 2009, 0(Z1) | |
| Authors: | MA Xiu-hua WANG Wei-min GUO Wei JIA Tie-kun FU Zheng-yi |
| Affiliation: | State Key Laboratory of Advanced Technology for Materials Synthesis and Processing;Wuhan University of Technology;Wuhan 430070;China |
| Abstract: | 5083 aluminum Alloy was prepared by cryomilling method.The microstructure,microstructural evolution and thermal stability and of sample powder were investigated by XRD,SEM and DSC.The results showed that the particles size of 5083 alloy powder during cryomilling was gradually reduced,Mg phase was gradually disappeared and super-saturated to Al;Milling time and milling speed were the main factors of affected alloy structure and performance,and high speed cryomilling could result in more uniform nanometer gra... |
| Keywords: | cryomilling microstructure thermal stability 5083 aluminum alloy |
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