Microstructure and Mechanical Properties of a Multi-modal Al Alloy with High Strength
Nanocrystalline (NC) Al alloy powder was fabricated by milling 2024 Al alloy powder and Fe-based metallic glass (FMG) particles.The NC Al alloy powder was consolidated into bulk sample by adding a part of atomized coarse-grained (CG) 2024 alloy powder.The microstructure and mechanical properties of powder and consolidated bulk materials were examined by X-Ray Diffraction (XRD),Scanning Electron Microscopy (SEM),Transmission Electron Microscopy (TEM) and mechanical test.It revealed that the FMG particles were uniformly distributed in the NC aluminum alloy powder.In the consolidation process,the grain size increased,and Al2CuMg phase precipitated.The multi-modal Al alloy by consolidation of FMG particles,NC and CG powder,exhibited higher yield strength up to 517 MPa and better plasticity in comparison to the samples without CG powder.
Al alloy High energy ball milling Multi-modal Nanocrystalline
Xiaoning Hao Ruixiao Zheng Lirong Hao Han Yang Chaoli Ma
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
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
286-292
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）