STUDY OF FATIGUE PROCESSES OF SELECTIVE LASER MELTING AND CONVENTIONAL PRODUCED MATERIALS

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F16%3APU121137" target="_blank" >RIV/00216305:26210/16:PU121137 - isvavai.cz</a>

Result on the web

<a href="http://cndt.cz/ewgae2016/" target="_blank" >http://cndt.cz/ewgae2016/</a>

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

STUDY OF FATIGUE PROCESSES OF SELECTIVE LASER MELTING AND CONVENTIONAL PRODUCED MATERIALS

Original language description

The main aim of the study is to compare fatigue processes and its acoustic emission (AE) signal of conventional produced material and material produced by selective laser melting (SLM) technology. The SLM offers the same benefits as the rest of the rapid prototyping technologies, the most important is big range of produced shapes, but without expensive moulds, cores or huge material waste. However the mechanical properties of these materials are currently worse than those of conventionally produced materials. AE method was used to get new information about fatigue damage of SLM materials. This study summarizes results from bending fatigue tests of reference Al alloy AW-2618A (AlCu2Mg1,5Ni) and SLM material with comparable chemical composition. Acquired AE and fatigue data from both materials were compared. The fractographic and metallographic analysis were also conducted as complement. Internal defects and inhomogenities in SLM materials cause different fracture behaviour than we can see at conventional materials. Differences in fatigue behaviour of SLM materials are strongly reflected in AE signal. The results may be used to improve the production of SLM materials in order to get better material characteristics. AE data helps to understand the fatigue behaviour of SLM materials in order to predict crack initiation.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

JL - Fatigue and fracture mechanics

OECD FORD branch

—

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

32nd European Conference on Acoustic Emission Testing

ISBN

978-80-214-5386-9

ISSN

—

e-ISSN

—

Number of pages

8

Pages from-to

263-270

Publisher name

VUTIUM Brno, Brno University of Technology

Place of publication

Brno

Event location

Praha

Event date

Sep 7, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—