In this study, fully dense tungsten samples were additively manufactured and the micro-structure behavior was studied. A crack network with a spacing of 20μm up to 100μm was found in the designed samples. It was noticed that the laser scanning approach, which could customize the microstructure, affected the crack behavior in manufactured tungsten[1]. Different additive parameters were adopted to study the microstructure properties, but it was revealed that cracking is practically irresistible in AM (additive manufacturing). It might be achieved that cracking chain assembled because the cracks appeared in each laser fused path and then analogous in the surface-by-surface structure course.

中文翻译：

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加法制造的纯钨的微观结构特征

在这项研究中，添加了完全致密的钨样品，并研究了其微观结构行为。在设计样本中发现了一个间距为20μm至100μm的裂纹网络。人们注意到，可以定制微观结构的激光扫描方法会影响人造钨的裂纹行为[1]。采用了不同的添加剂参数来研究显微组织性能，但发现在增材制造（增材制造）中裂纹实际上是无法抗拒的。因为裂纹出现在每个激光熔合路径中，然后在逐个表面结构过程中类似，所以可以实现裂纹链的组装。