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FATIGUE PROPERTIES OF ADDITIVELY MANUFACTURED COPPER ALLOY

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F18%3APU125554" target="_blank" >RIV/00216305:26210/18:PU125554 - isvavai.cz</a>

  • Výsledek na webu

  • DOI - Digital Object Identifier

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    FATIGUE PROPERTIES OF ADDITIVELY MANUFACTURED COPPER ALLOY

  • Popis výsledku v původním jazyce

    This study evaluates fatigue properties of copper (Cu) alloy Cu7,2Ni21,8Si1Cr produced by selective laser melting technology (SLM). This technology belongs to additive manufacturing or 3D printing technologies and allows to produce metal parts with complicated shapes in short production time and without the need to use expensive molds or large material waste. As the SLM technology is still under intensive research, the production process is not optimized for wide range of materials (most of studies were focused on titanium or aluminum alloys). Low quality of SLM materials is mainly connected with production defects caused by big temperature gradients during production. The SLM material is subjected to fatigue bending tests, which are supplemented by acoustic emission (AE) measurement and fractography analysis. By AE is possible to analyze fatigue behavior in detail and determine different fatigue stages and mechanism of crack propagation. After verification experiments, it is also possible to predict the remaining fatigue life. All results are compared with fatigue properties of conventionally produced Cu alloy AMPCOLOY® 944 (Cu7Ni2Si1Cr) using standard S-N curves. The fatigue life of SLM material is slightly worse than we can observe in conventionally produced materials and AE results suggest that there is different mechanism of crack propagation. As expected, the fractography study shows there is big amount of production defects (mainly pores) in SLM material and the crack origins are located near them.

  • Název v anglickém jazyce

    FATIGUE PROPERTIES OF ADDITIVELY MANUFACTURED COPPER ALLOY

  • Popis výsledku anglicky

    This study evaluates fatigue properties of copper (Cu) alloy Cu7,2Ni21,8Si1Cr produced by selective laser melting technology (SLM). This technology belongs to additive manufacturing or 3D printing technologies and allows to produce metal parts with complicated shapes in short production time and without the need to use expensive molds or large material waste. As the SLM technology is still under intensive research, the production process is not optimized for wide range of materials (most of studies were focused on titanium or aluminum alloys). Low quality of SLM materials is mainly connected with production defects caused by big temperature gradients during production. The SLM material is subjected to fatigue bending tests, which are supplemented by acoustic emission (AE) measurement and fractography analysis. By AE is possible to analyze fatigue behavior in detail and determine different fatigue stages and mechanism of crack propagation. After verification experiments, it is also possible to predict the remaining fatigue life. All results are compared with fatigue properties of conventionally produced Cu alloy AMPCOLOY® 944 (Cu7Ni2Si1Cr) using standard S-N curves. The fatigue life of SLM material is slightly worse than we can observe in conventionally produced materials and AE results suggest that there is different mechanism of crack propagation. As expected, the fractography study shows there is big amount of production defects (mainly pores) in SLM material and the crack origins are located near them.

Klasifikace

  • Druh

    D - Stať ve sborníku

  • CEP obor

  • OECD FORD obor

    20306 - Audio engineering, reliability analysis

Návaznosti výsledku

  • Projekt

    <a href="/cs/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>

  • Návaznosti

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Ostatní

  • Rok uplatnění

    2018

  • Kód důvěrnosti údajů

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

Údaje specifické pro druh výsledku

  • Název statě ve sborníku

    Metal 2017 - 26th Internation Conference on Metallurgy and Materials, Conference Proceedings

  • ISBN

    9788087294796

  • ISSN

  • e-ISSN

  • Počet stran výsledku

    6

  • Strana od-do

    1593-1598

  • Název nakladatele

    TANGER LTD.

  • Místo vydání

    neuveden

  • Místo konání akce

    Brno

  • Datum konání akce

    24. 5. 2017

  • Typ akce podle státní příslušnosti

    WRD - Celosvětová akce

  • Kód UT WoS článku

    000434346900257