Publication detail

Computed tomography based procedure for reproducible porosity measurement of additive manufactured samples

ZIKMUND, T. ŠALPLACHTA, J. ZATOČILOVÁ, A. BŘÍNEK, A. PANTĚLEJEV, L. ŠTĚPÁNEK, R. KOUTNÝ, D. PALOUŠEK, D. KAISER, J.

Original Title

Computed tomography based procedure for reproducible porosity measurement of additive manufactured samples

Type

journal article in Web of Science

Language

English

Original Abstract

Metallic parts made by selective laser melting technology are evaluated for internal porosity. The non-standardized pores segmentation is one of the key aspects to apply in order to achieve a precise porosity measurement using X-ray computed micro tomography. In this work, we present a new porosity analysis procedure which is based on the global thresholding and the correlation with metallographic image data. The procedure is independent on the obtained voxel resolution and makes an analysis reproducible. The novelty of this work is that the computed tomography is used for a comparative porosity analysis of samples from separate measurements. The functionality of proposed procedure is demonstrated on a test sample of aluminium alloy and is compared to standardly used procedures

Keywords

Porosity measurement, SLM sample, Metallography, Micro tomography, Automatic pores segmentation

Authors

ZIKMUND, T.; ŠALPLACHTA, J.; ZATOČILOVÁ, A.; BŘÍNEK, A.; PANTĚLEJEV, L.; ŠTĚPÁNEK, R.; KOUTNÝ, D.; PALOUŠEK, D.; KAISER, J.

Released

1. 4. 2019

ISBN

1879-1174

Periodical

NDT & E INTERNATIONAL

Year of study

103

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

111

Pages to

118

Pages count

8

URL

https://www.sciencedirect.com/science/article/pii/S0963869518303700

BibTex

@article{BUT156952,
  author="Tomáš {Zikmund} and Jakub {Šalplachta} and Aneta {Zatočilová} and Adam {Břínek} and Libor {Pantělejev} and Roman {Štěpánek} and Daniel {Koutný} and David {Paloušek} and Jozef {Kaiser}",
  title="Computed tomography based procedure for reproducible porosity measurement of additive manufactured samples",
  journal="NDT & E INTERNATIONAL",
  year="2019",
  volume="103",
  number="1",
  pages="111--118",
  doi="10.1016/j.ndteint.2019.02.008",
  issn="1879-1174",
  url="https://www.sciencedirect.com/science/article/pii/S0963869518303700"
}