Effect of Heat Treatment Temperature on Microstructure and Mechanical Properties of 316L Stainless Steel Formed by SLM
The different 316L samples and residual stress parts were manufactured by the selective laser melting(SLM)technology.The effect of the different heat treatment conditions on the microstructure,micro-hardness,mechanical properties and residual stress of 316L stainless steel samples formed by using SLM were investigated via optical microscope,scanning electron microscopy(SEM,equipped with electron backscatter diffraction(EBSD)probe),micro-hardness tester.The optimum heat treatment condition is obtained.The result show that the structure of316L stainless steel parts formed by SLMare very dense.Under the best heat treatment condition,which is holding at 1000℃ for 2 h,the samples have stable mechanical properties,lower residual stress.This study provides a strong basis for optimizing the mechanical properties and microstructure adjustment of 316L stainless steel formed by using SLM.
国家科技期刊平台
NSTL
万方数据
