TU Darmstadt / ULB / TUprints

On the Influence of the Microstructure upon the Fatigue and Corrosion Fatigue Behavior of UNS N07718

Engler, Christopher Tom ; Sarmiento Klapper, Helmuth ; Oechsner, Matthias (2021):
On the Influence of the Microstructure upon the Fatigue and Corrosion Fatigue Behavior of UNS N07718. (Publisher's Version)
In: Metals, 11 (1), MDPI, e-ISSN 2075-4701,
DOI: 10.26083/tuprints-00019311,
[Article]

[img]
Preview
Text
metals-11-00117.pdf
Available under CC BY 4.0 International - Creative Commons, Attribution.

Download (1MB) | Preview
Item Type: Article
Origin: Secondary publication via sponsored Golden Open Access
Status: Publisher's Version
Title: On the Influence of the Microstructure upon the Fatigue and Corrosion Fatigue Behavior of UNS N07718
Language: English
Abstract:

Due to the challenging operational conditions occurring during drilling, e.g., in the oil and gas industry, the corrosion fatigue (CF) behavior of materials used in drillstring components needs to be well understood. The combination of cyclic mechanic loads and a corrosive environment can affect significantly the integrity of a material, which has to be taken into account when selecting and qualifying materials for drilling equipment. Nickel alloys such as the precipitation-hardenable alloy 718 (UNS N07718) are widely used in many industrial applications including subterranean drilling. In the present study, the fatigue and CF behavior of alloy 718 in three different metallurgical conditions was investigated. The CF behavior of the different conditions was determined using customized rotating bending machines enabling testing in a simulated drilling environment at 125 °C. Results have shown that the fatigue and CF strength of alloy 718 is affected by its microstructural particularities, for instance, the amount of strengthening phases and δ-phase.

Journal or Publication Title: Metals
Journal volume: 11
Number: 1
Publisher: MDPI
Collation: 10 Seiten
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Divisions: 16 Department of Mechanical Engineering > Center for Engineering Materials, State Materials Testing Institute Darmstadt (MPA) Chair and Institute for Materials Technology (IfW)
Date Deposited: 19 Aug 2021 13:37
Last Modified: 19 Aug 2021 13:37
DOI: 10.26083/tuprints-00019311
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-193115
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/19311
Export:
Actions (login required)
View Item View Item