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Athanasios Iliopoulos, Rhys Jones, John Michopoulos, Nam Phan and R. K. Singh Raman
The aerospace industry is now beginning to adopt Additive Manufacturing (AM), both for new aircraft design and to help improve aircraft availability (aircraft sustainment). However, MIL-STD 1530 highlights that to certify airworthiness, the operational l...
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Saeed M. Jafarpour, Andrei V. Pipa, Alexander Puth, Anke Dalke, Jürgen Röpcke, Jean-Pierre H. van Helden and Horst Biermann
Recent technological development of utilizing an active screen made of solid carbon for plasma-assisted thermochemical diffusion treatments opens up new possibilities for control over the in situ generated treatment environment to guarantee reproducible ...
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Leslie K. Daille, Javiera Aguirre, Diego Fischer, Carlos Galarce, Francisco Armijo, Gonzalo E. Pizarro, Magdalena Walczak, Rodrigo De la Iglesia and Ignacio T. Vargas
The effects of tidal cycles associated with the water level on the biocorrosion of stainless steel AISI 316L were studied. Steel coupons were exposed to different conditions of immersion in mesocosms fed by fresh seawater either continuously or in accord...
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Bin Xie, Jiaxiang Xue, Xianghui Ren, Wei Wu and Zhuangbin Lin
Adopting the cold metal transfer plus pulse (CMT + P) process, 316L stainless steel wire was treated with a single channel multi-layer deposition experiment under different linear energy. The microstructures of different regions on the deposited samples ...
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Navid Moslemi, Mohsen Gol Zardian, Amran Ayob, Norizah Redzuan and Sehun Rhee
Ratcheting failure of materials and structures subjected to low cycle fatigue in the presence of significant mean stress is of great interest to researchers. In this experimental and numerical study, the response of 316L stainless steel samples was obser...
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Agus Suprihanto
Pág. 17 - 22
High temperature gas nitriding (HTGN) is the new methods to enhanced the properties of stainless steel. The HTGN process is able to diffuse the nitrogen atom into stainless steel. Increasing the nitrogen concentration produces higher corrosion resistance...
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Angeliki G. Lekatou and Sofia Tsouli
The present work studies the effect of fly ash content (0?25 wt.%), pH (8, 12.5), and steel type (316L, 304L) on the cyclic polarization of stainless steel rebars in electrolytes, simulating fresh concrete exposed to acid rain and corroded concrete cover...
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Roberto Montanari, Alex Lanzutti, Maria Richetta, Javokhir Tursunbaev, Emanuele Vaglio, Alessandra Varone and Claudio Verona
Austenitic stainless steels produced by laser powder bed fusion (L-PBF) are quite interesting materials owing to their specific microstructure consisting of dendrite walls built of dislocations pinned by many nano-oxides that involves significant strengt...
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Min-Sung Hong, Yunjeong Park, Jung Gu Kim and Kyunghoon Kim
This study discusses a new coating method to protect 316L stainless steel (SS) from pitting corrosion in high chloride environments. The SS surface was coated using a simple, eco-friendly method, and sunflower oil (SunFO) was used as a base coating and b...
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Thomas Lindner, Pia Kutschmann, Martin Löbel and Thomas Lampke
Austenitic stainless steel exhibits an excellent corrosion behavior. The relatively poor wear resistance can be improved by surface hardening, whereby thermochemical processes offer an economic option. The successful diffusion enrichment of bulk material...
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Shinichiro Adachi and Nobuhiro Ueda
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Miikka Karhu, Veli Kujanpää, Harri Eskelinen and Antti Salminen
In thick section laser welding, filler metal addition is usually required to improve joint fit-up tolerances or to control the chemical composition of the weld metal. With deep and narrow welds produced using an over-alloyed filler metal, it may be chall...
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Mervi Somervuori, Elisa Isotahdon, Maija Nuppunen-Puputti, Malin Bomberg, Leena Carpén and Pauliina Rajala
In Finland, the repositories for low and intermediate-level radioactive waste (LLW and ILW) will be situated at three different geographical locations in about 60 to 100 m deep granite bedrock where the waste and waste containers can be subjected to anox...
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Janis Baronins, Maksim Antonov, Sergei Bereznev, Taavi Raadik and Irina Hussainova
In this study, a multilayered AlCrN coating has been employed as a protective layer for steel used in tribo-corrosive conditions. The coating was deposited by a lateral rotating cathode arc PVD technology on a AISI 316L stainless steel substrate. A ratio...
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Charlotte Wehner, Bradley Shirley, Garrett Mathesen, Julian Merrick, Brandon Weatherford and Emilio Alessandro Nanni
The manufacturing of active RF devices like klystrons is dominated by expensive and time-consuming cycles of machining and brazing. In this article, we characterize the RF properties of X-band klystron cavities and an integrated circuit manufactured with...
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Zeliang Liu, Rui Zhao, Chenglin Tao, Yuan Wang and Xi Liang
Lattice structures are characterized by a light weight, high strength, and high stiffness, and have a wide range of applications in the aerospace field. Node stress concentration is a key factor affecting the mechanical performance of lattice structures....
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Alan Turnbull
A perspective is presented on the evolution of damage due to environmentally assisted cracking (EAC), from crack precursor development through to long crack growth. The variable nature of crack precursors is highlighted with an observation that uncontrol...
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Abdollah Saboori, Alberta Aversa, Giulio Marchese, Sara Biamino, Mariangela Lombardi and Paolo Fino
Directed energy deposition (DED) as a metal additive manufacturing technology can be used to produce or repair complex shape parts in a layer-wise process using powder or wire. Thanks to its advantages in the fabrication of net-shape and functionally gra...
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Kun Shi, Xue Li, Yang Zhao, Wei-Wei Li, Shu-Bo Wang, Xiao-Feng Xie, Li Yao, Jens Oluf Jensen and Qing-Feng Li
To improve corrosion resistance and electronic conductivity of bipolar plates for proton exchange membrane fuel cell (PEMFC), coatings of TiNb and TiNbN on 316L stainless steel (SS) were prepared by magnetron sputtering. X-ray diffraction (XRD) measureme...
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Shinichiro Adachi and Nobuhiro Ueda
Cold-sprayed AISI 316L stainless steel coatings are treated to form an austenite phase with excessive dissolved nitrogen (known as the S-phase) by plasma nitriding at temperatures below 450 °C. The S-phase is a hard and wear-resistant layer with high cor...
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