The Influence of High-energy Ball Milling and Sintering Process on the Microstructure and Mechanical Properties of Al-Ni-Y-Co-La Alloy

摘要：

　　Al86Ni7Y4.5Co1La1.5 (at.%) alloy powder was produced by argon gas atomization process.After high-energy ball milling,the powder was consolidated and extruded by using vacuum hot press sintering under different process conditions,sintering temperature,extrusion pressure,sintering time,etc..The microstructure and morphology of the powder and consolidated bulk alloy were examined by X-ray diffraction (XRD),scanning electron microscopy (SEM) and transmission electron microscopy (TEM).The phase transformation of the powder was investigated by differential scanning calorimetry (DSC).Mechanical properties of the consolidated bulk alloy were examined.The results showed that as the milling time increase,the volume fraction of amorphous materials and the hardness and yield strength of the bulk alloy were obvious improved.

关键词： Al Alloy High Energy Ball Milling Multi-modal Nanocrystalline

作者: Y. B. Yuan R. X. Zheng S. J. Ge H. Yang C. L. Ma

作者单位: Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education,School of Ma Hebei Sitong New Metal Material co., Ltd, Baoding Hebei 071100,China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 281-285

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）