Martian regolith—Ti6Al4V composites via additive manufacturing
Martian regolith—Ti6Al4V composites via additive manufacturing
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通过增材制造的火星风化层 – Ti6Al4V 复合材料
DOI：
10.1111/ijac.14136
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发表时间：
2022
影响因子：
2.1
通讯作者：
Bandyopadhyay, Amit
中科院分区：
文献类型：
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作者：
Afrouzian, Ali;Traxel, Kellen D.;Bandyopadhyay, Amit
为了研究空间原位资源利用，基于定向能量沉积（DED）的增材制造（AM）已被用于加工火星风化物-Ti6 Al 4V（Ti64）复合材料。在这里，我们研究了使用基于激光的DED沉积5，10和100重量%的火星风化层与Ti6 Al 4V预混的可加工性，通过X射线衍射，维氏显微硬度，扫描电子显微镜成像和磨损特性分析打印结构，利用磨料水射流切割机模拟火星表面的磨料环境。结果表明，由于原位陶瓷增强，复合材料的表面粗糙度和硬度随火星风化层重量百分比的增加而增加。例如，添加5重量%的火星风化层使维氏显微硬度从印刷态Ti64的366 ± 6 HV 0.2增加到730 ± 27 HV 0.2，同时保持与Ti6 Al 4V相似的磨料磨损性能。结果表明，基于激光的AM用于制造具有可比性能的Ti64-火星风化层复合材料。该研究还揭示了在限制未来太空任务的质量负担方面有希望的结果，从而导致更便宜和更容易的发射。
In order to investigate the in‐space in situ resource utilization, directed energy deposition (DED)‐based additive manufacturing (AM) has been utilized to process Martian regolith—Ti6Al4V (Ti64) composites. Here we investigated the processability of depositing 5, 10, and 100 wt% of Martian regolith premixed with Ti6Al4V using laser‐based DED, analyzing the printed structure via X‐ray diffraction, Vicker's microhardness, scanning electron microscopic imaging, and wear characteristics utilizing an abrasive water jet cutter to simulate abrasive environments on the Martian surface. The results indicate that the surface roughness and hardness of the composites increase with respect to the Martian regolith’ weight percentage due to in situ ceramic reinforcement. For instance, i5‐wt% addition of Martian regolith increased the Vicker's microhardness from 366 ± 6 HV0.2for as‐printed Ti64 to 730 ± 27 HV0.2while maintaining similar abrasive wear performance as Ti6Al4V. The results point toward laser‐based AM for fabricating Ti64—Martian regolith composites with comparable properties. The study also reveals promising results in limiting the mass burden for future space missions, resulting in cheaper and easier launches.