Results 1 to 10 of about 1,028 (199)

Aluminide Diffusion Coatings on IN 718 by Pack Cementation. [PDF]

Materials (Basel), 2022
This paper addressed the issues of both direct and indirect synthesis of Ni aluminides by pack cementation (pure Ni and IN 718 superalloy). On the Al-Ni diffusion twosome under pressure, at temperatures below and above the Al melting temperature, the appearance and evolution of diffusion porosity because of the Kirkendall–Frenkel effect manifestation ...
Cojocaru MO, Branzei M, Druga LN.
europepmc   +4 more sources

Chromium Enrichment on P11 Ferritic Steel by Pack Cementation [PDF]

MATEC Web of Conferences, 2016
The future thermal power plant is expected to operate at higher temperature to improve its efficiency and to reduce greenhouse gas emission. This target requires better corrosion properties of ferritic steels, which commonly used as materials for ...
Fauzi F. A., Kurniawan T., Salwani M. S., Bin Y. S., Harun W. S. W.   +4 more
doaj   +6 more sources

Pack Cementation Route to Ag₂Se: Correlating Structure, Phase Formation, and Thermoelectric Performance [PDF]

Nanomaterials
Silver selenide (Ag2Se) is a promising thermoelectric material for near-room-temperature applications, yet its scalable fabrication remains challenging due to limitations in conventional synthesis routes and the strong dependence of its properties on ...
Aikaterini Teknetzi, Dimitrios Stathokostopoulos, Savvas Hadjipanteli, Isaak Vasileiadis, Evangelia Tarani, Nikolaos Hastas, Eleni Pavlidou, Thomas Kehagias, Theodora Kyratsi, George Vourlias   +9 more
doaj   +3 more sources

The Formation of Al-Si Aluminide Coatings by Pack Cementation Method on TNM-B1 Intermetallic Alloy

Advances in Mechanical and Materials Engineering, 2023
The TiAl intermetallics are the promising material for aerospace application. According to its insufficient oxidation resistance above 900oC the using of protective coatings is necessary.
Mateusz Woźniak, Marek Góral, Barbara Kościelniak   +2 more
doaj   +3 more sources

Coating Reactions on Vanadium and V-Si-B Alloys during Powder Pack-Cementation. [PDF]

Materials (Basel), 2020
Alloys in the V-Si-B system are a new and promising class of light-weight refractory metal materials for high temperature applications. Presently, the main attention is focused on three-phase alloy compositions that consist of a vanadium solid solution
Hasemann G, Harris C, Krüger M, Perepezko JH.   +3 more
europepmc   +3 more sources

Superior oxidation behaviors of stable nano-grain-sized coating layers produced via sequential two-step pack cementation coatings by B and Si of TiTaNbMoZr high-entropy alloys

Journal of Materials Research and Technology
In this study, Si-pack cementation coating and sequential B–Si-pack cementation coating were applied to TiTaNbMoZr alloy to investigate the resulting microstructural changes and oxidation resistance.
J.S. Oh, J.N. Park, S.J. Kim, J.S. Choi, J.H. Shin, T.S. Kim, S.H. Hong, J.S. Park   +7 more
doaj   +2 more sources

Surface molybdenizing on titanium by halide-activated pack cementation [PDF]

Surface and Coatings Technology, 2009
Abstract To improve the surface hardness of titanium, molybdenized layer was fabricated on titanium surface by halide-activated pack cementation process. Coupons were analyzed using optical microscopy (OM), scanning electron microscopy (SEM) with X-ray energy dispersive spectrometer (EDS) and X-ray diffraction (XRD).
X.M. Peng, C.Q. Xia, Y.Y. Liu, J.H. Wang
core   +4 more sources

Improved Surface Properties of Low-Carbon Steel by Chromizing–Titanizing Coating Using Pack Cementation Process

Metals
This study investigates the application of chromizing and titanizing coatings on low-carbon steel (LCS) via the pack cementation process, utilizing various compositions, temperatures, and durations.
Ayman Yousef, A. M. Bastaweesy, Ibrahim M. Maafa, Ahmed Abutaleb   +3 more
doaj   +2 more sources

SiC/MoSi2 based coatings for Cf/C composites by two step pack cementation

Journal of the European Ceramic Society, 2019
In order to improve the oxidation resistance of Cf/Cs produced by chemical vapour infiltration, a multilayer coating based on silicon carbide and molybdenum disilicide was produced by two-step pack cementation technique.
Federica Bezzi, Selene Grilli, Giuseppe Magnani   +2 more
exaly   +2 more sources

Low-temperature Formation of Aluminide Coatings on Ni-base Superalloys by Pack Cementation Process

Chinese Journal of Aeronautics, 2010
This article investigates the low-temperature formation of aluminide coatings on a Ni-base superalloy by pack cementation process. The pack cemented coatings characteristic of high density and homogeneity possess a two-layer structure.
Lu Tong, Zhou Chungen
exaly   +2 more sources