A short review on selective laser melting of H13 steel

In this review, the present situation of H13 tool steel formed by selective laser melting (SLM) is introduced in detail. This review shows the current academic exploration and achievements in this field through the three aspects of microstructure, defects, and mechanical properties. We presented the distribution of the alloy elements and the different crystal morphology. We summarize the main defects of this alloy prepared by SLM from three aspects: the rough surface, cracks, and low density. The mechanical properties of H13 tool steel formed by SLM are also introduced. All in all, it shows a wide application prospect of SLMed H13 steel.