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《矿物冶金与材料学报:英文版》
>Sintering behavior of Cr in different atmospheres and its effect on the microstructure and properties of copper-based composite materials
Sintering behavior of Cr in different atmospheres and its effect on the microstructure and properties of copper-based composite materials
Copper matrix composites consisting of chromium(Cr)or ferrochrome(Cr-Fe)as strengthening elements and molybdenum disulfide as a lubricant had been sintered in nitrogen and hydrogen atmosphere,respectively.Their morphology and energy-dispersive X-ray spectrometry(EDS)analysis showed that serious interaction occurred between MoS2 and Cr(or Cr-Fe)particles when the samples were sintered in hydrogen atmosphere.Chromium sulfide compound(Cr x S y)was formed as a reaction product,which decreased the density and strength of the composites remarkably.This interaction was inhibited when the samples were sintered in nitrogen atmosphere; thus,the mechanical properties of the composites were improved.
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