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    <title language="eng">Thermographic investigation of the anisotropic behaviour of additively manufactured AISI316 steel using DED-Arc</title>
    <abstract language="eng">Additive manufacturing is one of the most promising techniques for industrial production and maintenance, but the specifics of the layered structure must be considered. The Direct Energy Deposition-Arc process enables relatively high deposition rates, which is favourable for larger components. For this study, specimens with different orientations were prepared from one AISI316 steel block – parallel and orthogonal to the deposition plane. Quasistatic tensile loading tests were carried out, monitored by an infrared camera. The obtained surface temperature maps revealed structural differences between both orientations. The consideration of surface temperature transients yields more details about the behaviour of the material under tensile loading than the conventional stress-strain-curve. These preliminary investigations were supplemented by thermographic fatigue trials. Although the anisotropy was also observed during fatigue loading the fatigue behaviour in general was the same, at least for both inspected specimens. The presented results demonstrate the abilities and the potential of thermographic techniques for tensile tests.</abstract>
    <parentTitle language="eng">17th Quantitative Infrared Thermography Conference proceedings</parentTitle>
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    <author>Rainer Krankenhagen</author>
    <author>Somsubhro Chaudhuri</author>
    <author>Andreas Pittner</author>
    <author>Rene Winterkorn</author>
    <author>Rosa de Finis</author>
    <author>Davide Palumbo</author>
    <author>Umbero Galietti</author>
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    <title language="eng">Thermographic investigation of the anisotropic behaviour of additively manufactured  AISI316 steel using DED-Arc</title>
    <abstract language="eng">Additive manufacturing is one of the most promising techniques for industrial production and maintenance, but the specifics of the layered structure must be considered. The Direct Energy Deposition-Arc process enables relatively high deposition rates, which is favourable for larger components. For this study, specimens with different orientations were prepared from one AISI316 steel block – parallel and orthogonal to the deposition plane. Quasistatic tensile loading tests were carried out, monitored by an infrared camera. The obtained surface temperature maps revealed structural differences between both orientations. The consideration of surface temperature transients yields more details about the behaviour of the material under tensile loading than the conventional stress-strain-curve. These preliminary investigations were supplemented by thermographic fatigue trials. Although the anisotropy was also observed during fatigue loading the fatigue behaviour in general was the same, at least for both inspected specimens. The presented results demonstrate the abilities and the potential of thermographic techniques for tensile tests.</abstract>
    <parentTitle language="eng">Conference proceedings of th 17th Quantitative Infrared Thermography Conference</parentTitle>
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    <author>Rainer Krankenhagen</author>
    <author>Somsubhro Chaudhuri</author>
    <author>Andreas Pittner</author>
    <author>Rene Winterkorn</author>
    <author>Rosa de Finis</author>
    <author>Davide Palumbo</author>
    <author>Umberto Galietti</author>
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      <language>eng</language>
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      <value>Thermoelastic effect</value>
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      <language>eng</language>
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