Results 71 to 80 of about 746,875 (274)

Hot corrosion Type I of novel Co‐based γ/γ′ superalloys with and without Al‐ and Cr‐diffusion coatings

Materials and Corrosion, Volume 75, Issue 12, Page 1583-1599, December 2024.
Hot corrosion is encountered in turbine engines, where Co‐based superalloys are proposed to replace Ni‐based materials. In the present study, the hot corrosion resistance of γ/γ′ superalloys of the Co–Ni–Al–W alloys was increased by their Co and W content.
Till König, Sebastian P. Hagen, Sannakaisa Virtanen, Mathias C. Galetz   +3 more
wiley   +1 more source

Effect of Co doping on hot corrosion behavior of aluminide coating on Mo-rich single-crystal superalloy exposed to Na2SO4+NaVO3 at 750 °C and 900 °C

Journal of Materials Research and Technology
This study presents a comparative investigation on the hot corrosion behavior of Mo-rich single-crystal superalloys with simple aluminide coatings and Co-modified aluminide coatings under molten salt corrosion by 75 wt % Na2SO4 + 25 wt % NaVO3 mixture at
X.Y. Chen, H. Zhang, J. Kang, H.D. Duan, Y.L. Pei, S.K. Gong, S.S. Li   +6 more
doaj   +1 more source

Mechanical Characterization Potentials of Aluminide Diffusion Coatings on Molybdenum Substrates

Advanced Engineering Materials, Volume 26, Issue 17, September 2024.
For the fundamental development of novel materials for protective coatings for high‐temperature applications, the mechanical characterization of these material composites is of essential importance. In this article, the key findings of utilized test method developments to characterize coated materials for the critical assessment of their resilience and
Jurica Filipovic, Katharina Beck, Christian Kontermann, Mathias Galetz, Matthias Oechsner   +4 more
wiley   +1 more source

Knudsen effusion mass spectrometry: Current and future approaches

Rapid Communications in Mass Spectrometry, Volume 38, Issue 14, 30 July 2024.
Rationale Knudsen effusion mass spectrometry (KEMS) has been a powerful tool in physical chemistry since 1954. There are many excellent reviews of the basic principles of KEMS in the literature. In this review, we focus on the current status and potential growth areas for this instrumental technique.
Nathan S. Jacobson, Jean‐Yves Colle, Valentina Stolyarova, Torsten Markus, Ioana Nuta   +4 more
wiley   +1 more source

Effect of ZR Content on Oxide-Scale Spallation of Aluminide Coating

Iranian Journal of Materials Science and Engineering, 2019
In the present study, Zirconium modified aluminide coating on the nickel-base superalloy IN-738LC was first created by high activity high temperature aluminizing based on the out-of-pack cementation method.
R. Latifi, S. Rastegari, S. H. Razavi
doaj  

Al-Pt MOCVD coatings for the protection of Ti6242 alloy against oxidation at elevated temperature [PDF]

, 2005
Results on isothermal oxidation at 873K for 90 h of Al-Pt coatings on Ti6242 coupons are reported. These coatings were obtained by low temperature, low pressure metalorganic chemical vapor deposition using Me3(MeCp)Pt(VI) and dimethylethylamine alane ...
Delmas, Mathieu, Kihn, Yolande, Poquillon, Dominique, Vahlas, Constantin   +3 more
core   +2 more sources

Preparation and Characterization of Ti‐6‐4 and Ti‐8‐1‐1 Metal Matrix Composites with High Specific Stiffness Using Powder Hot Extrusion and Arc Remelting

Advanced Engineering Materials, Volume 26, Issue 14, July 2024.
Powder hot extrusion and heat treatment of titanium metal matrix composite's lead to high specific stiffnesses of 34.6 GPa cm3 g−1. Remelting, to simulate an additive manufacturing method, of these materials results in severe changes of the microstructure and a decrease in the mechanical properties even with ex situ reinforcements. Titanium alloys with
Nico Moser, Ella Staufer, Thomas Klein, Jelena Horky, Martin Schmitz‐Niederau, Erich Neubauer, Lena Trunova, Christian Edtmaier   +7 more
wiley   +1 more source

Oxide-assisted crack growth in hold-time low-cycle-fatigue of single-crystal superalloys

MATEC Web of Conferences, 2014
Compressive hold-time low-cycle fatigue is one of the important damage modes in Ni-based superalloy hot-gas path components. In strain controlled LCF, the compressive hold typically degrades fatigue life significantly due to creep relaxation and the ...
Suzuki Akane, Gao Yan, Lipkin Don, Singhal Anjali, Krug Matthew, Konitzer Douglas, Almer Jonathan, Pollock Tresa, Bewlay Bernard   +8 more
doaj   +1 more source

Molybdenum and its alloys in advanced engine applications: From material selection to surface optimization [PDF]

E3S Web of Conferences
This article explores the potential of molybdenum and its alloys for use in advanced aerospace engines, focusing on their high-temperature capabilities and corrosion resistance.
Kuang Zhiyu
doaj   +1 more source

Carbonaceous deposits on aluminide coatings in tritium-producing assemblies

Nuclear Materials and Energy, 2020
Co-deposition of carbon atoms with hydrogen isotopes and hydrogenated carbon radicals and molecules is recognized as the main mechanism for tritium retention in the graphite walls of the previous tokamak fusion devices.
Weilin Jiang, Steven R. Spurgeon, Bethany E. Matthews, Anil K. Battu, Swarup China, Tamas Varga, Arun Devaraj, Elizabeth J. Kautz, Matthew A. Marcus, Dallas D. Reilly, Walter G. Luscher   +10 more
doaj   +1 more source