The mechanical compression performance of ultra-fine grained stainless steel pyramidal lattice core

KULEYIN H., GÜMRÜK R., YANAR H., Demirtaş M., PÜRÇEK G.

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES, vol.28, no.10, pp.1073-1078, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 28 Issue: 10
  • Publication Date: 2021
  • Doi Number: 10.1080/15376494.2019.1631413
  • Journal Name: MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, DIALNET, Civil Engineering Abstracts
  • Page Numbers: pp.1073-1078
  • Keywords: Ultrafine grained microstructure, compression test, equal channel angular pressing (ECAP), severe plastic deformation (SPD), pyramidal lattice core, IMPACT RESPONSE, SANDWICH PLATES, BEHAVIOR, FABRICATION, DUCTILITY, STRENGTH, TENSILE, KAGOME
  • Karadeniz Technical University Affiliated: Yes

Abstract

Severe plastic deformation (SPD) techniques are prospective ones having ability for desirable high mechanical properties to be achieved without any chemical change in metals. Equal-channel angular pressing (ECAP), one of SPD techniques, was used to obtain ultra-high mechanical compressive response of stainless steel pyramidal lattice core. For this purpose, the stainless steel 304 L samples were processed by ECAP at 500 degrees C. Then, it was sliced into struts and built lattice core after bending processes. At the compression tests, the ECAP lattice core has huge mechanical properties, at nearly two times collapse load and energy absorption values.