Gas nitriding of a plasma detonation modified die steel

The effects of the plasma detonation technique (PDT) on the morphology, structure and nitrogen concentration distribution of the nitrided layer on AISI H13 steel have been investigated. The results showed that the PDT formed a modified layer on the surface of AISI H13 steel composed of a melted layer (alpha-Fe and gamma-Fe) and a fine-grained layer (alpha-Fe). Although the formation of PDT-modified layer was not conducive to the nitriding process, the nitrided layer thickness increased by 40% by grinding off the melted layer. (C) 2021 Elsevier B.V. All rights reserved.

Automated summary

The study found that the plasma detonation technique (PDT) significantly affected the nitrided layer on AISI H13 steel, forming a modified layer. Grinding off the melted layer resulted in a 40% increase in nitrided layer thickness.