Binder Jetting 3D Printing of Titanium Aluminides Based Materials: A Feasibility Study,Advanced Engineering Materials

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Binder Jetting 3D Printing of Titanium Aluminides Based Materials: A Feasibility Study
Advanced Engineering Materials ( IF 3.4 ) Pub Date : 2020-05-15 , DOI: 10.1002/adem.202000408
Pinku Yadav ₁ , Zongwen Fu ₁ , Moritz Knorr ₁ , Nahum Travitzky _{1,

2}

Affiliation

This study offers the ability to fabricate nearly dense titanium aluminides‐based structures using a hybrid method that encompasses binder jetting 3D printing (3DP) of Ti–6Al–4V followed by pressureless ex situ infiltration with Al. Microstructure characterization and phase analysis are performed by scanning electron microscopy equipped with energy dispersive spectroscopy and X‐ray diffraction, respectively. The microstructure of the samples fabricated by means of pressureless ex situ infiltration at different temperatures and with various durations is studied and discussed. The nearly dense titanium aluminides‐based composites shows a Young's modulus of ≈145 GPa, a compressive strength of ≈1.4 GPa and a bending strength of ≈483 MPa. To demonstrate technological capability of this hybrid approach, complex near‐net‐shaped objects are fabricated.

中文翻译：

铝钛合金基材料的活页夹喷射3D打印：可行性研究

这项研究提供了使用混合方法制造几乎致密的基于铝化钛的结构的能力，该方法包括对Ti-6Al-4V进行粘结剂喷射3D打印（3DP），然后进行无压力的Al原位渗透。显微结构表征和相分析分别通过配备能谱仪和X射线衍射仪的扫描电子显微镜进行。研究并讨论了在不同温度和不同持续时间下通过无压异位渗透制备的样品的微观结构。几乎致密的铝化钛基复合材料的杨氏模量约为145 GPa，抗压强度约为1.4 GPa，弯曲强度约为483 MPa。为了证明这种混合方法的技术能力，制造了复杂的近净形物体。

更新日期：2020-05-15

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