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The Influence of Sintering Temperature on Microstructure and Mechanical Properties of Ni-Al Intermetallics Fabricated by SPS

机译:烧结温度对SPS制造的Ni-Al金属间质组织和力学性能的影响

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In the present study PN85Yu15 was used as elemental powder to produce a sintered compound with Ni_3Al as main phase. The Spark Plasma Sintering (SPS) technique is used to compact the powders. The powder was sintered in a temperature range between 1000°C and 1150°C to observe the influence of the sintering temperature on the microstructure and the mechanical properties. The microstructure was observed with optical microscope (OM), the phase composition was characterized by X-ray diffraction (XRD) technique. Density and microhardness were observed and compared the values with the results of other researchers. The compressive-, density- and microhardness tests show as clear result that with increasing the sintering temperature nearly all properties become better and also the microstructure studies show that porous places become less.
机译:在本研究中,PN85YU15用作元素粉末,以产生具有Ni_3AL的烧结化合物作为主相。火花等离子体烧结(SPS)技术用于紧凑粉末。将粉末在1000℃和1150℃之间的温度范围内烧结,观察烧结温度对微结构和机械性能的影响。用光学显微镜(OM)观察微观结构,通过X射线衍射(XRD)技术表征相组合物。观察到密度和显微硬度并将其值与其他研究人员的结果进行比较。压缩 - ,密度和微硬度试验表明,随着烧结温度几乎所有性质的增加,微观结构研究表明,多孔位置变得越来越少。

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