Detail publikace

Mechanické a mikrostrukturní charakteristiky Al slitiny 2618 zpracované SLM strategií s přetavováním

PANTĚLEJEV, L. KOUTNÝ, D. PALOUŠEK, D. KAISER, J.

Český název

Mechanické a mikrostrukturní charakteristiky Al slitiny 2618 zpracované SLM strategií s přetavováním

Anglický název

Mechanical and microstructural properties of 2618 Al-alloy processed by SLM remelting strategy

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

en

Originální abstrakt

Paper deals with the comparison of mechanical properties and microstructure of aluminium alloy 2618 fabricated by Selective Laser Melting (SLM) and material of the same grade manufactured by standard extrusion process. The SLM specimens were fabricated with different processing strategies (meander and remelting). Presence of cracks was found in both cases of used strategies, but in case of meander strategy, crack are of shorter character and distributed rather within individual welds. In case of remelting strategy, cracks are oriented mostly parallel to building direction and transcend fusion boundaries (FB) across several layers. It was found that defects present in microstructure of SLM material significantly affect its mechanical properties. Ultimate tensile strength (UTS) for extruded material reached 392 MPa, while for SLM material produced with meander strategy UTS was 273 MPa and for remelting strategy it was 24 MPa only.

Český abstrakt

Článek se zabývá mechanickými a mikrostrukturními charakteristikami Al-Cu hliníkové slitiny zpracovávané pomocí metody SLM a to jak s využitím strategie meander tak strategie se zařazeným přetavováním.

Anglický abstrakt

Paper deals with the comparison of mechanical properties and microstructure of aluminium alloy 2618 fabricated by Selective Laser Melting (SLM) and material of the same grade manufactured by standard extrusion process. The SLM specimens were fabricated with different processing strategies (meander and remelting). Presence of cracks was found in both cases of used strategies, but in case of meander strategy, crack are of shorter character and distributed rather within individual welds. In case of remelting strategy, cracks are oriented mostly parallel to building direction and transcend fusion boundaries (FB) across several layers. It was found that defects present in microstructure of SLM material significantly affect its mechanical properties. Ultimate tensile strength (UTS) for extruded material reached 392 MPa, while for SLM material produced with meander strategy UTS was 273 MPa and for remelting strategy it was 24 MPa only.

Klíčová slova anglicky

2618A Al-alloy, selective laser melting, microstructure, tensile properties, defects

Vydáno

03.04.2017

Nakladatel

Trans Tech Publications

Místo

Switzerland

ISBN

978-3-0357-1018-2

ISSN

0255-5476

Kniha

Metallography XVI

Ročník

891

Strany od–do

343–349

Počet stran

6

BIBTEX


@inproceedings{BUT131733,
  author="Libor {Pantělejev} and Daniel {Koutný} and David {Paloušek} and Jozef {Kaiser},
  title="Mechanical and microstructural properties of 2618 Al-alloy processed by SLM remelting strategy",
  booktitle="Metallography XVI",
  year="2017",
  volume="891",
  month="April",
  pages="343--349",
  publisher="Trans Tech Publications",
  address="Switzerland",
  isbn="978-3-0357-1018-2",
  issn="0255-5476"
}