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贺涔,江勇,罗思杰.氧化物/不锈钢梯度复合材料初步设计与评价[J].稀有金属材料与工程(英文),2018,47(10):3155~3160.[HE Cen,JIANG Yong and LUO Si Jie.Preliminary design and evaluation of oxide/stainless steel functionally graded materials and their properties[J].Rare Metal Materials and Engineering,2018,47(10):3155~3160.]
Preliminary design and evaluation of oxide/stainless steel functionally graded materials and their properties
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Received:November 28, 2016  Revised:August 02, 2018
DOI:
Key words: Functionally  graded materials, Y2Ti2O7,stainless  steel, cermet
Foundation item:深圳市科技计划项目(JCYJ20140509142357196),国家自然科学基金面上项目(51471189)
Author NameAffiliation
HE Cen,JIANG Yong and LUO Si Jie  
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Abstract:
      A Y2Ti2O7/316L stainless steel functionally graded composite material was fabricated through powder lamination and hot-press sintering processing, and its microstructure and some mechanical properties were investigated. The observations of optical microscopy, X-ray diffractometry, and electron probe microanalysis all confirmed the formation of compositional and microstructural gradients in the transition region between the metal and oxide halves. Some mechanical properties of the graded composite were also preliminarily evaluated, by performing the mechanical testing on homogeneous composite samples with different volume fractions of Y2Ti2O7. The results suggested that some mechanical properties vary in the same gradient of composition and microstructure, i.e. relative density and bending strength increase gradually while Vickers hardness decreases gradually with the increase of metal content in the transition region.