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Effects of Process Gas Pressure and Type on Oxygen Content in Sintered Titanium Produced using Jet-Milled Titanium Hydride Powders

机译:工艺气体压力的效果和射流钛氢化物粉末生产烧结钛氧含量的影响

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摘要

Titanium hydride powders are increasingly being used to produce titanium components via powder metallurgy processes due to their improvements in densification over titanium metal powders. Since the oxygen content plays a significant role in the mechanical properties of titanium alloys, understanding how powder preparation techniques, such as milling, affect the final oxygen content is key. In this work, titanium hydride powders were milled through jet milling using air, nitrogen, and argon gas at various processing pressures. The oxygen content in the sintered powders is shown to be mostly dependent on the specific surface area, which is mainly affected by the grinding pressure. The type of gas used was also found to have an effect on the oxygen content, but the dependence was small.
机译:钛氢化物粉末越来越多地用于通过粉末冶金工艺生产钛成分,因为它们在钛金属粉末上的致密化的改进而产生。 由于氧含量在钛合金的力学性质中起着重要作用,因此了解粉末制备技术,例如研磨,影响最终氧含量是关键。 在这项工作中,通过使用空气,氮气和氩气在各种加工压力下喷射氢化钛粉末通过喷射研磨。 烧结粉末中的氧含量显示为大多数取决于主要受研磨压力影响的比表面积。 还发现所用气体的类型对氧含量产生影响,但依赖性很小。

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