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首页> 外文期刊>Journal of Materials Engineering and Performance >Porous Titanium Parts Fabricated by Sintering of TiH2 and Ti Powder Mixtures
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Porous Titanium Parts Fabricated by Sintering of TiH2 and Ti Powder Mixtures

机译：通过烧结TiH2和Ti粉末混合物制造的多孔钛部件

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摘要

A new simple powder metallurgy process by sintering TiH2 powders was used to manufacture porous Ti components. The effects of the processing parameters (pressure of cold isostatic pressing and sintering temperature) and the TiH2/Ti ratio in the powder mixtures on the impurities, the linear shrinkage and the pore properties (including overall and open porosities) were comprehensively determined. The addition of TiH2 as a reactant has been found beneficial for the synthesis of porous Ti components. The formation mechanisms of pores were demonstrated based on the dehydrogenation process of TiH2 during sintering, resulting in highest reactivity due to the "in statu nascendi" generation of the metal. In addition, the hardness and corrosion resistance of all the sintered samples were evaluated, related to the overall and open porosities. As a result, an optimal composition of Ti-40 wt.% TiH2 was defined, as its maximum open porosity was about 23%.
机译：通过烧结TiH2粉末的新简单的粉末冶金方法用于制造多孔Ti组分。 综合地确定了粉末混合物中的加工参数（冷等静压和烧结温度的压力）和TiH2 / Ti比的TiH2 / Ti比（包括整体和开放孔隙率）。 已发现作为反应物的TiH2添加是有益于合成多孔Ti组分的。 基于烧结过程中TiH2的脱氢过程证明了孔的形成机制，导致金属的“Statu Nascendi”产生的最高反应性。 此外，评价所有烧结样品的硬度和耐腐蚀性，与整体和开放的孔隙有关。 结果，定义了Ti-40重量％的Ti-40重量％的最佳组成。由于其最大开放孔隙率为约23％。

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