This paper presents the rheological properties of SS316L water atomized MIM feedstock. Coarse and fine SS316L water atomized powder is mixed with a composite binder consisting of PMMA and PEG to form a homogenous paste, termed as feedstock. The feedstock is loaded with SS316L water atomized powder ranging 62 v/o, 62.5 v/o, 63 v/o, 63.5 v/o and 64 v/o. However, due to the morphology of the water atomized powder which is not spherical compared to the gas atomized ones, fine powder feedstock is unable to produce any significant rheological result due to the powder loading being more than 63.5 v/o. Results show that the fine powder feedstock demonstrates a higher viscosity if compared to the coarse powder feedstock. It can be established that binder separations are likely to occur in the coarse powder feedstock, especially, at high temperatures. The investigation concludes that the fine powder feedstock has its best rheological properties at 62 v/o while the coarse powder feedstock lies between 63 v/o and 63.5 v/o
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机译：本文介绍了SS316L水雾MIM原料的流变特性。将粗细的SS316L水雾化粉末与由PMMA和PEG组成的复合粘合剂混合，形成均匀的糊料，称为原料。给原料加载范围为62 v / o，62.5 v / o，63 v / o，63.5 v / o和64 v / o的SS316L水雾化粉末。但是，由于水雾化粉末的形态与气体雾化粉末相比不是球形，因此由于粉末负载量超过63.5 v / o，细粉原料无法产生任何明显的流变结果。结果表明，与粗粉原料相比，细粉原料显示出更高的粘度。可以确定，在粗粉原料中，特别是在高温下，很可能发生粘合剂分离。研究得出的结论是，细粉原料的流变性能最佳，为62 v / o，而粗粉原料在63 v / o和63.5 v / o之间
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