Publication detail

Study of dynamic behaviour via Taylor anvil test and structure observation of M300 maraging steel fabricated by the selective laser melting method

KOLOMÝ, Š. JOPEK, M. SEDLÁK, J. BENČ, M. ZOUHAR, J.

Original Title

Study of dynamic behaviour via Taylor anvil test and structure observation of M300 maraging steel fabricated by the selective laser melting method

Type

journal article in Web of Science

Language

English

Original Abstract

This paper deals with the M300 high strength maraging steel fabricated via selective laser melting method. Mechanical properties especially microhardness and compressive yield strength of maraging steel in as-printed state were observed. The acquired data was implemented in Johnson-Cook constitutive equation used for numeric simulation, which showed the satisfactory correlation with the observed experiment. Dynamic behaviour under high strain rate (impact velocity reached 185 m.s-1)- 1 ) was investigated via Taylor Anvil Test. The experiment revealed structure and geometrical changes accompanied with the creation of characteristic funnellike and cylindrical areas on the deformed sample. Impacted sample forehead featured the increase of micro- hardness (465 HV) accompanied with structure changes. The structure in the funnel-like area exhibited the decrease of average grain size, which reached the minimum (3.1 mu m) in the vicinity of the impacted forehead. Closer analysis revealed that the high strain rate caused the increase of high fraction high-angle grain boundaries (50,8 %) and higher geometrically necessary dislocation density (52.77 1.m-- 2 ) in the funnel-like area.

Keywords

Maraging steel; Taylor anvil test; Selective laser melting; Johnson-cook; High strain rate; Microhardness; Structure

Authors

KOLOMÝ, Š.; JOPEK, M.; SEDLÁK, J.; BENČ, M.; ZOUHAR, J.

Released

20. 7. 2024

Publisher

Elsevier

Location

London

ISBN

2212-4616

Periodical

Journal of Manufacturing Processes

Year of study

125

Number

9

State

United States of America

Pages from

283

Pages to

294

Pages count

12

URL

https://www.sciencedirect.com/science/article/pii/S1526612524007114

Full text in the Digital Library

http://hdl.handle.net/11012/249396

BibTex

@article{BUT189288,
  author="KOLOMÝ, Š. and JOPEK, M. and SEDLÁK, J. and BENČ, M. and ZOUHAR, J.",
  title="Study of dynamic behaviour via Taylor anvil test and structure observation of M300 maraging steel fabricated by the selective laser melting method",
  journal="Journal of Manufacturing Processes",
  year="2024",
  volume="125",
  number="9",
  pages="283--294",
  doi="10.1016/j.jmapro.2024.07.057",
  issn="2212-4616",
  url="https://www.sciencedirect.com/science/article/pii/S1526612524007114"
}