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Microstructure And Mechanical Properties Of Additively Manufactured 316L Stainless Steel.

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Additive manufacturing is a term that encompasses a number of technologies that manufacture structures by building material up, layer by layer, and which are attractive due to a number of factors, such as the ability to rapidly produce complex components with controlled microstructures in a single step with reduced post processing requirements. Laser-powder bed fusion (L-PBF) is an additive manufacturing technique where a laser continuously melts successive layers of powder material, building up from a horizontal build plate.

Product Number: ED22-18491-SG
Author: Karyn Cooper, Stuart Medway, Jennifer Borg
Publication Date: 2022
$20.00
$20.00
$20.00

Two heats of additively manufactured type 316L stainless steel manufactured by laser powder bed fusion (L-PBF) have been characterized in the ‘as-manufactured’ condition using hardness testing, scanning electron microscopy (SEM) and electron backscatter diffraction (EBSD). The material exhibited a strong orientational dependence on the build direction. Tensile testing also demonstrated this dependence; although yield stresses were similar, the stress-strain curves for material with differing orientation with respect to build direction diverged significantly with increasing strain. Comparison with a heat of wrought 316L showed the L-PBF material has elevated hardness and yield strengths.


Two heats of additively manufactured type 316L stainless steel manufactured by laser powder bed fusion (L-PBF) have been characterized in the ‘as-manufactured’ condition using hardness testing, scanning electron microscopy (SEM) and electron backscatter diffraction (EBSD). The material exhibited a strong orientational dependence on the build direction. Tensile testing also demonstrated this dependence; although yield stresses were similar, the stress-strain curves for material with differing orientation with respect to build direction diverged significantly with increasing strain. Comparison with a heat of wrought 316L showed the L-PBF material has elevated hardness and yield strengths.


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