Quick Search:       Advanced Search
汪云海,夏 春,黄春平,刘奋成,柯黎明.La2O3含量对搅拌摩擦加工制备Ni /Al复合材料组织和性能的影响[J].稀有金属材料与工程(英文),2018,47(12):3829~3834.[Wang Yunhai,Xia Chun,Huang Chunping,Liu Fencheng and Ke Liming.Influence of La2O3 content on the microstructure and properties of Ni/Al composites fabricated by friction stir processing[J].Rare Metal Materials and Engineering,2018,47(12):3829~3834.]
Influence of La2O3 content on the microstructure and properties of Ni/Al composites fabricated by friction stir processing
Download Pdf  View/Add Comment  Download reader
Received:March 21, 2017  Revised:September 11, 2017
DOI:
Key words: La2O3  friction stir processing  composites  microstructure  properties
Foundation item:国家自然科学基金(51465044, 51364037);江西省自然科学基金(20142BAB216019);江西省教育厅科技项目(GJJ160690)
Author NameAffiliation
Wang Yunhai,Xia Chun,Huang Chunping,Liu Fencheng and Ke Liming  
Hits: 62
Download times: 0
Abstract:
      : (Ni+La2O3)/Al composites were fabricated by means of adding the mixed powder of (Ni+La2O3) with different La2O3 content to the Al substrate in the Friction Stir Processing (FSP) period. The microstructures of the composite zone were analyzed by SEM and EDS, the element distribution of the composite zone were analyzed by EPMA, the phase composition was examined by XRD, the mechanical properties of the composites were tested by tensile test at room temperature. Results show that: The microstructure and properties of (Ni+La2O3)/Al composites trend to be better firstly and then worse with increasing of La2O3 contents. When the contents of La2O3 are 5%, the contents of Al3Ni particles increase and the distribution of particles becomes uniform,the massive Ni agglomerates are decreased, so the tensile strength of the composites is the highest with 215MPa, which is increased by 22% than that of Ni/Al composites(The tensile strength is 176MPa); When the contents of La2O3 are 7%, the contents of Al3Ni particles decrease and the massive Ni agglomerates reappear, the tensile strength of the composites decreased to 201MPa.