Microstructure, tensile and wear properties of a novel graded Al matrix composite prepared by direct energy deposition
直接能量沉积梯度铝基复合材料的组织、拉伸和磨损性能
作者: J.C. LiX. LinN. KangJ.L. LuQ.Z. WangW.D. Huang
作者单位: 1State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an, Shaanxi, 710072, PR China
2Key Laboratory of Metal High Performance Additive Manufacturing and Innovative Design, MIIT China, Northwestern Polytechnical University, Xi’an, Shaanxi, 710072, PR China
刊名: Journal of Alloys and Compounds, 2020, Vol.826
来源数据库: Elsevier Journal
DOI: 10.1016/j.jallcom.2020.154077
关键词: Direct energy depositionAl-Cr-Fe alloysMetal matrix compositesTensileSliding friction
英文摘要: Abstract(#br)A novel graded Al matrix composite (AMC) was prepared by direct energy deposition (DED) from the mixture of pure Al, Cr and Fe powders. From the perspective of a single molten pool, the microstructure consists of two regions: AMC region with coarse Al 13 Fe 4 laths and AMC region with fine Al 13 Fe 4 particles. With increasing the deposited layer, the content of coarse Al 13 Fe 4 lath decreases and the content of fine Al 13 Fe 4 particle increases, which indicates the formation of a graded structure. Interestingly, the samples cut from different positions of graded AMC deposit exhibit the identical ultimate tensile strength (UTS, ∼222 MPa) except that the top region presents the higher ductility (3.8%) than the bottom region (1.1%). However, the bottom region presents the...
全文获取路径: Elsevier  (合作)
分享到:
来源刊物:
影响因子:2.39 (2012)

×
关键词翻译
关键词翻译
  • tensile 拉的
  • deposition 沉积
  • properties 道具
  • prepared 有准备的
  • energy 能量
  • direct 直接的
  • composite 复合的
  • graded 分等级的
  • matrix 石基
  • novel 长篇小说