Article
Materials Science, Multidisciplinary
Qian Yan, Luchun Yan, Xiaolu Pang, Kewei Gao
Summary: This study investigated the influence of Cu precipitations on hydrogen trapping capability and hydrogen embrittlement (HE) in aged martensitic stainless steel. The results showed a significant decrease in the hydrogen diffusion coefficient and a substantial increase in the hydrogen content in specimens containing Cu precipitations. The specimens with peak-aged (1 h) Cu precipitations exhibited the highest HE susceptibility, as a result of abundant hydrogen trapped by coherent Cu precipitations with the matrix and escaped during the tensile process.
Article
Materials Science, Coatings & Films
Musharaf Abbas, Gregory M. Smith, Paul R. Munroe
Summary: Ni feedstock particles were deposited on a grit-blasted stainless-steel substrate using the HVOF process to investigate the flattening behavior and bonding features on a rough surface. The study found that fully melted splats exhibited good flattening performance and efficient bonding with the substrate surface, revealing elemental interdiffusion across the splat-substrate interface.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Xunxiang Hu, Timothy G. Lach, Kurt A. Terrani
Summary: This study investigates deuterium permeation and retention in 316L stainless steel manufactured by laser powder bed fusion. The results show that additively manufactured stainless steel has higher deuterium permeability compared to wrought stainless steel, but stress-relieved and solution-annealed samples exhibit lower permeability. Following solution annealing, the deuterium permeability of additively manufactured stainless steel becomes comparable to that of wrought stainless steel.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
J. Bestautte, A. Oudriss, M. Lenci, D. Bechet, Z. Obadia, X. Feaugas, F. Christien
Summary: The trapping behavior of hydrogen in a Fe-Cr-Ni-Al-Mo alloy was investigated using different metallurgical states obtained by heat treatment. The study found that low-misfit coherent B2-NiAl precipitates have limited trapping capability, while high dislocation density and reverted austenite significantly trap hydrogen.
Article
Materials Science, Coatings & Films
Musharaf Abbas, Arslan Khalid, Gregory M. Smith, Paul R. Munroe
Summary: This study investigates the formation behavior of Ni particles plasma sprayed onto AISI 1008 mild steel and 316 austenitic stainless steel substrates to compare the splat formation on both surfaces. Analytical techniques were used to analyze the characteristics of the splats formed on both substrates. Most of the observed splats were halo type splats driven by Rayleigh-Taylor instabilities. A linear relationship was found between the size of the splats' central core and their outer ring of debris, which was distinct for each substrate. Diffusion analysis showed a higher degree of diffusion across the interface between splat and stainless steel substrate, suggesting a better bond efficiency for stainless steel. Cross-sectional observations and theoretical calculations showed evidence of substrate melting and metallurgical bonds for both mild steel and stainless steel substrates.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Vladislav I. Borodin, Aleksandr V. Lun-Fu, Victor N. Kudiiarov, Andrey M. Lider, Ivan S. Sakvin, Mikhail A. Bubenchikov, Dmitry S. Kaparulin, Vyacheslav A. Ovchinnikov
Summary: The research demonstrates that an increase in corrosion test time reduces the hydrogen diffusion coefficient, indicating the presence of aging defects in the material; during operation, a significant decrease in the diffusion coefficient suggests the formation of numerous defects in the material.
Article
Materials Science, Coatings & Films
Kessaraporn Wathanyu, Karuna Tuchinda, Siriporn Daopiset, Sirinrath Sirivisoot
Summary: The corrosion resistance and biocompatibility of titanium (Ti) porous coating with high and low porosity gradients were studied. The results showed that the porosity gradients had little effect on corrosion resistance and rate, but could promote bone cell ingrowth.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Zhengrong Zhou, Kaiyu Zhang, Yuanjian Hong, Haohao Zhu, Wanliang Zhang, Yanmin He, Chengshuang Zhou, Jinyang Zheng, Lin Zhang
Summary: The study revealed that heat treatment of selective laser melted (SLM) 304L stainless steel affects its hydrogen embrittlement susceptibility, with higher temperatures leading to more severe hydrogen embrittlement effects. Dislocations are identified as the main cause of hydrogen embrittlement, and preexisting dislocations can impact hydrogen transport behavior during sample stretching.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Physics, Multidisciplinary
K. Arunkumar, D. Thirumalaikumarasamy, P. Thirumal
Summary: Thermal spray cermet coatings can enhance the wear resistance and corrosion resistance of turbine blades, making them suitable for high temperature and corrosive environments. The angle of impingement was found to have the most significant impact on the erosion rate of the coatings.
Article
Materials Science, Multidisciplinary
Dong-Guang Liu, Ting-Ting Yang, Yu-Lan Liu, Lai-Ma Luo, Yu-Cheng Wu
Summary: In this study, an SiO2 coating was prepared on the inner wall of a 316L stainless steel pipeline using the slurry-spraying method. The coating exhibited good thermal shock resistance and hydrogen permeation resistance, significantly outperforming the 316L stainless steel substrate. These findings suggest that the SiO2 coating can greatly enhance the hydrogen resistance performance of the 316L stainless steel substrate.
Article
Materials Science, Multidisciplinary
A. Yaktiti, A. Dreano, J. F. Carton, F. Christien
Summary: The study investigated the effect of porosity on diffusion and trapping of hydrogen in cast steel through electrochemical permeation (EP) and thermal desorption spectrometry (TDS). It was found that hydrogen was mainly located in cavities, which behave as reversible traps at room temperature. Additionally, hydrogen content increased linearly with increasing volume fraction of porosity.
Article
Materials Science, Multidisciplinary
Weijie Wu, Xuewei Zhang, Weiguo Li, Hao Fu, Shenguang Liu, Yanfei Wang, Jinxu Li
Summary: Hydrogen diffusion and interactions with structural defects are investigated in deformed 2205 duplex stainless steel. The study found that phase boundaries and ferrite grain boundaries have a significant impact on hydrogen diffusion, while plastic deformation has little effect.
Article
Materials Science, Characterization & Testing
Roshan Kuruvila, Thirumalai Kumaran Sundaresan, Farooq Ahmed, Uthayakumar Marimuthu
Summary: This study investigates the use of atmospheric plasma spray (APS) and detonation gun (DGun) coatings to deposit nichrome on duplex stainless steel (DSS 2205) for corrosion prevention. The results show that DGun coatings are more effective in reducing corrosion rates and improving structural longevity compared to APS coatings, due to their dense microstructure and strong antiparticle adhesion.
JOURNAL OF TESTING AND EVALUATION
(2023)
Review
Materials Science, Multidisciplinary
M. A. Mohtadi-Bonab, Mohammad Masoumi
Summary: This paper thoroughly investigates the hydrogen diffusion behavior in pipeline steel and discusses the effect of various microstructural factors on hydrogen diffusion through literature review. The survey results show that the hydrogen diffusion in pipeline steels strongly depends on the microstructure, crystallographic texture, dislocation density, grain size, presence of different elements, precipitates, and inclusions. The interfaces between retained austenite and martensitic layer are considered as possible hydrogen trap sites, and the apparent diffusivity is reduced due to hydrogen trapping by dislocations. The grain size and nature of grain boundaries play a significant role in hydrogen diffusion and trapping.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Electrochemistry
Y. Mantani, T. Saka, M. Ichiyanagi, D. Sugino
Summary: This study examines the differences in characteristics between standard wire flame-sprayed coatings of stainless-steel wires from a metallurgical point of view. It is found that the composition of the coatings varies depending on the materials used, and oxygen distribution affects the density of the coating. The increase in carbon content is related to corrosion progress.
TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING
(2022)
