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Experimental researches on the tribological analysis of composite materials sintered with iron matrix

机译:铁基质烧结复合材料摩擦学分析的实验研究

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In this paper a study is conducted on the abrasion wear behavior of iron matrix composite materials,testing of samples obtained by sintering was made for different values of the applied load as for the relative speed of sliding.Starting from the studied literature,recipes of sintered sintered metal composite materials having iron matrix have been developed which have been tested for their physico-chemical and tribological properties.The prepared powders were dosed according to the formulations (Fe 68%,Cu 13%,Ni 5-7%,Graphite 6%,SiC 8%,SiO 2 8%),and the resulting mixtures were homogenized to achieve homogeneous mixtures to ensure,finally,a good reproducibility of the physico-mechanical properties of the sintered material.For forming,a cylindrical die having a surface area of 2cm~2 was used.Working pressures ranged from 5000 ^ 6000daN/cm~2.The densities obtained for the compressed samples were determined by weighing the METTLER analytical balance and measured with the micrometer for the volume calculation.The values of"raw"densities range from 5.12 to 6.3g/cm~3.
机译:在本文中,对铁基质复合材料的磨损行为进行了研究,对施加负荷的不同值进行了烧结而获得的样品的测试,如图所示。从研究的文献中,烧结的食谱开始已经开发出具有铁基质的烧结金属复合材料,其已经测试了它们的物理化学和摩擦学性质。根据制剂(Fe 68%,Cu,13%,Ni 5-7%,石墨6%,给制了制备的粉末。 ,SiC 8%,SiO 2 8%)和所得混合物均化以实现均匀混合物,以确保烧结材料的物理机械性能的良好再现性。成形,具有表面积的圆柱形模具使用2cm〜2。通过称重梅特勒分析平衡并用千分尺测量,从5000 ^ 6000dan / cm〜2中测定,为压缩样品获得的密度。体积计算。“原始”密度的值范围为5.12至6.3g / cm〜3。

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