Publication detail

Acoustic Emission Response to Fatigue Damage of Additively Produced and Cast Materials

SKŘIVÁNKOVÁ, V. VLAŠIC, F. MAZAL, P. PALOUŠEK, D.

Original Title

Acoustic Emission Response to Fatigue Damage of Additively Produced and Cast Materials

English Title

Acoustic Emission Response to Fatigue Damage of Additively Produced and Cast Materials

Type

conference paper

Language

en

Original Abstract

Additive manufacturing (AM) or 3D printing technologies allow to produce parts with complicated shapes in a relatively short time and without large amounts of material waste. These parts are more and more used in different types of engineering applications. The latest studies are mainly aimed at improving the quality of the material produced by AM in order to achieve the same or better quality as conventional materials, resulting in the need for testing these materials. The study presented evaluation and comparison the fatigue processes of additively produced and cast materials using acoustic emission method. The used additive technology is selective laser melting (SLM), which is used to produce metal parts. Tested material is aluminium alloys AlSi9Cu3, which is commonly used in aluminium castings production. The material is tested in as-cast or as-built condition without any heat treatment. All samples were subjected to fatigue bending tests in high-cycle regime and the results were evaluated by acoustic emission measurement. This allows a deep analysis of the fatigue process and comparison of the characteristics of both materials. The main goal is to analyse the acoustic emission response to fatigue damage and the correlation between this response and fracture mechanism. Results shows that fatigue life of SLM material is better than casting material with same chemical composition. Acoustic emission detects stages of fatigue process and crack initiation and localization.

English abstract

Additive manufacturing (AM) or 3D printing technologies allow to produce parts with complicated shapes in a relatively short time and without large amounts of material waste. These parts are more and more used in different types of engineering applications. The latest studies are mainly aimed at improving the quality of the material produced by AM in order to achieve the same or better quality as conventional materials, resulting in the need for testing these materials. The study presented evaluation and comparison the fatigue processes of additively produced and cast materials using acoustic emission method. The used additive technology is selective laser melting (SLM), which is used to produce metal parts. Tested material is aluminium alloys AlSi9Cu3, which is commonly used in aluminium castings production. The material is tested in as-cast or as-built condition without any heat treatment. All samples were subjected to fatigue bending tests in high-cycle regime and the results were evaluated by acoustic emission measurement. This allows a deep analysis of the fatigue process and comparison of the characteristics of both materials. The main goal is to analyse the acoustic emission response to fatigue damage and the correlation between this response and fracture mechanism. Results shows that fatigue life of SLM material is better than casting material with same chemical composition. Acoustic emission detects stages of fatigue process and crack initiation and localization.

Keywords

Additive manufacturing, acoustic emission, fatigue loading, fracture mechanism

Released

03.09.2018

Publisher

Sweden MEETX AB l Ref. ECNDT2018

Location

Gothenburg, Sweden

ISBN

978-91-639-6217-2

Book

12th European conference on Non-Destructive Testing

Edition number

1

Pages from

1

Pages to

7

Pages count

7

URL

BibTex


@inproceedings{BUT150890,
  author="Vendula {Skřivánková} and František {Vlašic} and Pavel {Mazal} and David {Paloušek}",
  title="Acoustic Emission Response to Fatigue Damage of Additively Produced and Cast Materials",
  annote="Additive manufacturing (AM) or 3D printing technologies allow to produce parts with complicated shapes in a relatively short time and without large amounts of material waste. These parts are more and more used in different types of engineering applications. The latest studies are mainly aimed at improving the quality of the material produced by AM in order to achieve the same or better quality as conventional materials, resulting in the need for testing these materials.
The study presented evaluation and comparison the fatigue processes of additively produced and cast materials using acoustic emission method. The used additive technology is selective laser melting (SLM), which is used to produce metal parts. Tested material is aluminium alloys AlSi9Cu3, which is commonly used in aluminium castings production. The material is tested in as-cast or as-built condition without any heat treatment. All samples were subjected to fatigue bending tests in high-cycle regime and the results were evaluated by acoustic emission measurement. This allows a deep analysis of the fatigue process and comparison of the characteristics of both materials. The main goal is to analyse the acoustic emission response to fatigue damage and the correlation between this response and fracture mechanism.
Results shows that fatigue life of SLM material is better than casting material with same chemical composition. Acoustic emission detects stages of fatigue process and crack initiation and localization.",
  address="Sweden MEETX AB l Ref. ECNDT2018",
  booktitle="12th European conference on Non-Destructive Testing",
  chapter="150890",
  howpublished="online",
  institution="Sweden MEETX AB l Ref. ECNDT2018",
  year="2018",
  month="september",
  pages="1--7",
  publisher="Sweden MEETX AB l Ref. ECNDT2018",
  type="conference paper"
}