Microstructure and Properties of 316L Stainless Steel Fabricated by Laser Direct Forming

Abstract:

Based upon the mechanism of conventional rapid form, the thin wall parts of 316L stainless steel were obtained through the laser melting of metallic powders which were delivered coaxially and then deposited on the substrate layer by layer. The obtained microstructure is fully dense and evenly distributed with the characteristic of rapid solidified microstructure. The mechanical properties are equivalent to that of casting and wrought annealed materials, suitable to the requirement for real usage.