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| Mechanical properties evolution of VC reinforced 316L stainless steel by selective laser melting |
| LIU Zhi-yuan， QIAN Bo |
| School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237 ,China |
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Abstract The selective laser melting (SLM) technology based on 316L stainless steel powder has made good progress. The parameters of the SLM process have always been optimized for mechanical properties. In order to further strengthen the mechanical properties of 316L stainless steel forming parts, vanadium carbide (VC) ceramic particles with an average particle size of 800 nm were added to the original 316L stainless steel powder and the mechanical properties were tested after SLM forming. The results show that vanadium carbide is dissolved in the matrix, the hardness of the molded parts is raised about 22.8%, the yield strength is raised about 33.8%, the tensile strength is raised about 45.3%, and the modulus of elasticity is raised about 67%. Due to a slight increase in porosity, the elongation is reduced about 15.7%.
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Received: 16 April 2018
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2019, Vol. 29 
