Microstructure and mechanical properties of AlSi10Mg alloy test bars were studied with two proven processes in the additive manufacturing(AM)industry,i.e.selec-tive laser melting(SLM)and sand casting.The test results show that the performance of supported test bars are different when placed in different directions.SLMed test bars placed at 0°,45°,90° have significant directional difference,a progressive increase of 20 MPa at 90°,45°,0°.It can be eliminated with 300 ℃2 h stress relieving annealing.AlSi10Mg alloy was also studied when formed by SLM and 3 DP processes.The mechanical properties and stability of the SLMed one are significantly better than those of the 3DPed one.
维普
万方数据