Microstructure and mechanical properties of ZrO2/NiCr functionally graded materials
Microstructure and mechanical properties of ZrO2/NiCr functionally graded materials
复制标题
ZrO2/NiCr功能梯度材料的显微组织和力学性能
DOI:
10.1016/j.msea.2009.01.066
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发表时间:
2009-05
期刊:
影响因子:
6.4
通讯作者:
Wu, Linzhi
中科院分区:
文献类型:
--
作者:
Sun, Yuguo;Jin, Xin;Guo, Licheng;Wu, Linzhi
The microstructure and mechanical properties of ZrO2/NiCr functionally graded materials (FGMs) fabricated by powder metallurgy are investigated experimentally. Microscopic examination exhibits that the material composition and microstructure of the FGMs vary gradually. The distributions of mechanical properties in the FGMs are obtained from the mechanical testing of homogeneous composite samples (non-FGM) with different volume fractions of ZrO2. The experimental results show that the distributions of mechanical properties strongly depend on the variation of microstructure. It is found that hardness increases and ductility decreases with the increase of ZrO2, which is attributed to the variation of the matrix phase from the metal to the ceramic. Bending strength and elastic modulus decrease as the volume fraction of ZrO2increase from 0% to 40%, however, increase as the volume fraction of ZrO2increase from 50% to 100%. These are mainly caused by the weakly bonded ceramic/metal interface.
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DOI:
10.4028/www.scientific.net/msf.423-425.1
发表时间:
2003-03
期刊:
Materials Science Forum
影响因子:
--
作者:
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DOI:
10.1016/s0921-5093(01)01400-9
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DOI:
10.4028/www.scientific.net/kem.345-346.497
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期刊:
Key Engineering Materials
影响因子:
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通讯作者:
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作者:
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影响因子:
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V. Cannillo;L. Lusvarghi;C. Siligardi;A. Sola