LLNL makes printed steel up to three times stronger than traditional steel


Little by little it is finally being achieved that the advantages that 3D printing can offer compared to traditional manufacturing techniques are really scandalous, this time I do not want to talk about whether this technology is faster or allows certain objects to be manufactured in a much more efficient way. simple, but that thanks to the use of 3D printing certain materials, such as steel, can be even stronger under certain conditions.

Going into a little more detail, today I want to refer to the paper that has just been published by a group of researchers from the LLNL (Lawrence Livermore National Laboratory), which have managed to perform very significant advances in the field of 3D printing with 316L stainless steel, which is used by the navy and which, in the latest tests carried out, manufacturing with its new technology, is capable of offering a resistance up to three times greater than the same product manufactured following traditional methodologies.

Much more resistant and ductile stainless steel thanks to this work methodology.

As discussed in the published paper, it seems that the use of this technology could offer higher levels of resistance and ductility to other forms of stainless steel, not just 316L. Thanks to this, they do not hesitate to affirm that it could be especially interesting in the manufacture of chemical equipment, medical implants, engine parts or other types of parts that, like these, require improved physical properties.

As he commented morris wang, a laboratory scientist who has worked on this project:

The microstructure that we have developed eliminates the relationship between strength and ductility. One of the main problems that we have found has been that, when treating steel, if you want to strengthen it, you must lose ductility, it was not possible to have both, although with this new additive manufacturing technique, it is not necessary to make this choice.

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