Comparison of Hardness of Surface 316L Stainless Steel Made by Additive Technology and Cold Rolling

Marek Pagáč; Jiří Hajnyš; Jana Petrů; Tomáš Zlámal

doi:10.4028/www.scientific.net/MSF.919.84

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HomeMaterials Science ForumMaterials Science Forum Vol. 919Comparison of Hardness of Surface 316L Stainless...

Comparison of Hardness of Surface 316L Stainless Steel Made by Additive Technology and Cold Rolling

Abstract:

The paper deals with the comparison of surface hardness and porosity of stainless steel 316L (1.4404) produced by additive technology (SLM) and cold rolled steel. The subject of the paper is a comparison of two sets of samples where the first set of samples was made on a Renishaw AM400 with a laser output of 200 W and 400 W. In each set of samples, were the samples without heat-treated and heat-treated by annealing. Measurement of porosity and surface hardness were performed on all samples. The surface hardness of the material was evaluated by a static test according to Brinell CSN EN 10003-1. The porosity measurement was performed by the optical method. The measured values were compared with the reference material, which was cold-rolled steel, in which both the porosity and the hardness of the surface were measured.

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Periodical:

Materials Science Forum (Volume 919)

Pages:

84-91

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.919.84

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Online since:

April 2018

Authors:

Marek Pagáč*, Jiří Hajnyš, Jana Petrů, Tomáš Zlámal

Keywords:

316L, Additive Manufacturing, Balling Effect, Hardness Surface, Keyhole, Porosity, SLM

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