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FATIGUE PROPERTIES OF ADDITIVELY MANUFACTURED COPPER ALLOY

The result's identifiers

  • Result code in 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>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    FATIGUE PROPERTIES OF ADDITIVELY MANUFACTURED COPPER ALLOY

  • Original language description

    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.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20306 - Audio engineering, reliability analysis

Result continuities

  • Project

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

  • Continuities

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

Others

  • Publication year

    2018

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

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

  • ISBN

    9788087294796

  • ISSN

  • e-ISSN

  • Number of pages

    6

  • Pages from-to

    1593-1598

  • Publisher name

    TANGER LTD.

  • Place of publication

    neuveden

  • Event location

    Brno

  • Event date

    May 24, 2017

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000434346900257