the influence of applied heat-treatment on in 718 fatigue life at three point flexural bending

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ID: 225059
2017
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Abstract
The Inconel alloy 718 is an iron-nickel based superalloy with a working temperature up to 650 °C. Presented phases such as γ'' (Ni3Nb), γ' (Ni3Al), and δ (delta – Ni3Nb) are responsible for the alloy's unique properties. The δ – delta phase is profitable when situated at grain boundaries in small quantities due to increasing fatigue life. However, at temperatures close to 650 °C the γ'' transforms to δ – delta and causes a decrease in fatigue life. Heat-treatment (800°C/ for 72 hours) and its influence on fatigue life are discussed in this paper. Fatigue tests were carried out at room temperature. After the tests we plotted the S-N curves for both stages. SEM (Scanning Electron Microscopy) fractography was carried out as well.
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belan2017metalurgijathe Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;J. Belan;L. Kuchariková;E. Tillová;A. Vaško
Journal journal of the formosan medical association = taiwan yi zhi
Year 2017
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