Article
Materials Science, Multidisciplinary
Habib Lebbal, Mohammed Chaib, Abdelkader Slimane, Djafar Ait Kaci, Noureddine Boualem
Summary: Introduced a resistance spot welding method using non-fusible terminal resistance welding technique, and studied the boundaries and impact on welded joint performance through controlling parameters such as current power, welding time, and sheet thickness.
Article
Chemistry, Physical
Tiantian Deng, Jianjun Li, Zhizhen Zheng, Wei Tian, Guoliang Li
Summary: This paper investigates the effect of process parameters on the surface morphology of AISI 304 stainless steel during plasma beam polishing. It is found that the main arc current, nozzle height, scanning speed, and plasma gas flux are key experimental parameters. By adjusting these parameters, glossy and defect-free surfaces can be achieved on AISI 304 stainless steel.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Manufacturing
Fatemeh Khorasani, Roohollah Jamaati, Hamed Jamshidi Aval
Summary: By controlling the holding time of intercritical annealing, exceptional toughness was achieved in AISI 1008 steel. The microstructural evolution and mechanical behavior of produced ferritic-martensitic dual-phase (DP) steel samples were examined. The hardness, strength, ductility, and toughness increased linearly with the increase of the martensite fraction.
JOURNAL OF MANUFACTURING PROCESSES
(2023)
Article
Materials Science, Multidisciplinary
E. A. Eid, M. M. Sadawy
Summary: Plastic cold rolling deformation is a method to enhance the microstructure and mechanical characteristics of austenitic steel. The effective strain, dislocation density, and hardness, yield stress, and ultimate strength values are increased with the increaseing of effective strain value.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Xiqing Li, Wei Liu, Xiangzhong Guo, Zhiguo Zhang, Zhikun Song
Summary: Cold-rolled plates of metastable austenitic stainless steel (SS) 301LN are used for manufacturing lightweight railway passenger cars, with non-penetration laser welding to improve corrosion resistance and joint strength. Microstructure comparisons and thermal analysis were conducted on laser welded 301LN and AISI 304, showing different solidification modes and higher thermal cracking resistance in the 301LN weld bead.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
K- Fukumoto, T. Mabuchi, K. Yabuuchi, K. Fujii
Summary: After irradiation with Fe ions, significant irradiation hardening and subsequent recovery were observed in the stainless steel model alloy, mainly attributed to Ni-Si clusters and Frank loops. The dense formation of Ni-Si clusters plays a controlling role in the behavior of irradiation hardening.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Emil Evin, Miroslav Tomas
Summary: The effect of laser welding on the mechanical properties and formability of austenitic stainless steel and ferritic steel was studied. The results showed that laser welding had a negative impact on the formability of the ferritic steel, while it had no significant effect on the formability of the austenitic stainless steel.
Article
Chemistry, Physical
Francisco Alves de Lima Junior, Ricardo Artur Sanguinetti Ferreira, Romulo Rocha de Araujo Lima
Summary: The performance of an extractor device used in the food industry was studied through computational modeling. The device made with AISI 420 stainless steel showed a lower manufacturing cost, less wear, and increased service life compared to the device made with AISI 304 stainless steel.
Article
Engineering, Mechanical
Deepak K. Prajapati, Mayank Tiwari
Summary: Dry wear experiments provide insights into the changes of contacting surfaces under unlubricated sliding conditions, aiding in the understanding of the relationship between friction coefficient and topography parameters. The study reveals that roughness decreases with sliding time and load, while certain topography parameters are positively correlated with the friction coefficient. Negative correlations are found between some topography parameters and the friction coefficient.
Article
Materials Science, Multidisciplinary
Hadi Savaloni, Zahra Sadat Kazemi
Summary: The study utilized post-annealing with Ni thin film coatings at different temperatures to improve the corrosion resistance of stainless steel in sulfuric acid medium. The samples exhibited the highest corrosion resistance at the annealing temperature of 623 K, with Ni/SS(304) and Ni/SS(316) showing corrosion inhibition efficiency factors of 99.60% and 97.87% respectively.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Jingwei Zhao, Ling Li, Yanyang Qi, Chen Wang, Liang Luo, Cunlong Zhou, Zhengyi Jiang, Xiaoguang Ma
Summary: In this study, the effect of annealing temperature on the microstructure, mechanical behavior, and fracture mechanism of AISI 304 foils were investigated through electron back-scatter diffraction tests and tensile tests. The results showed that an annealing temperature of 950 degrees C resulted in a more homogeneous microstructure, which improved the mechanical properties of AISI 304 foils. However, an increase in annealing temperature to 1150 degrees C led to a decrease in both elongation and tensile strength due to in coordination deformation in coarse grains. The formation of micro-dimples on the fracture surface of AISI 304 foils annealed at 950 degrees C indicated enhanced ductility.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
E. A. Eid, M. M. Sadawy, A. M. Reda
Summary: The study utilized cold rolling deformation to produce different samples of AISI 304 stainless steel with varying martensitic phase content. Hardness improvement depended on the characteristics, growth, and distribution of the martensitic phase, with a decrease in wear rate as the martensite phase increased. Radiation shielding tests showed that AISI 304 stainless steel exhibited good shielding performance against neutrons and gamma-rays compared to previous studies.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Yu-Hsuan Chung, Tai-Cheng Chen, Hung-Bin Lee, Leu-Wen Tsay
Summary: The study found that micro-shot peening can enhance the fatigue resistance of AISI 304 stainless steel primarily by inducing intense strain hardening, phase transformation, and residual stress. Additionally, a nanograined structure observed in the shot-peened layer contributes to improved fatigue resistance.
Article
Chemistry, Multidisciplinary
Kichang Bae, Minju Kang, Yeji Shin, Eunyoung Choi, Young-Mog Kim, Junghoon Lee
Summary: By using edible oils and fatty acids, we have successfully created a multifunctional lubricant-impregnated surface with low contact angle hysteresis and sliding angle similar to fluorocarbon lubricant-infused systems. The edible oil impregnated surface also inhibits the direct contact of external aqueous solution to a solid surface structure, resulting in enhanced corrosion resistance, anti-biofouling, and condensation heat transfer with reduced ice adhesion.
Article
Engineering, Civil
Jing Bai, Moslem Paidar, Sadok Mehrez, Olatunji Oladimeji Ojo, Mahyuddin Khairuddin Matyuso Nasution, Azlan Mohd Zain
Summary: This study conducted friction spot extrusion brazing of Cu and AISI 304 stainless plates using a pure Zn interlayer medium. By changing the tool shoulder surfaces from smooth to scrolled, the Cu-Fe reaction was prevented. The study found that the change in tool shoulder surface had no significant effect on the chemical composition and interlocked formation, but influenced grain size and fracture load of the joint.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Liuming Wei, Jingwen Li, Yonggang Li, Qirong Zheng, Fan Cheng, Chuanguo Zhang, Jingyu Li, Gaofeng Zhao, Zhi Zeng
Summary: This study investigates the influence of He-V complexes on H behaviors on different W surfaces using DFT calculations. The results show that H dissolution is most difficult but H trapping is easiest on the W (110) surface, while the opposite is true on the W (111) surface. Moreover, the presence of He-V complexes increases the difficulty of H diffusion from bulk to surface and desorption.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Yan Meng, Song Zeng, Chen Chen, Chaowen Zhu, Huahai Shen, Xiaosong Zhou, Xiaochun Han
Summary: The characteristics of magnetron sputtered Cr coatings vary with different temperature, bias voltage, and pressure. Coatings with random orientation, good crystallinity, and small grain size exhibit favorable oxidation behavior, while coatings with strong (200) texture, poor crystallinity, and large grains have many intrinsic defects that are detrimental to the protection property of the Cr coatings.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Xinyuan Xu, Zefeng Yu, Wei-Ying Chen, Aiping Chen, Arthur Motta, Xing Wang
Summary: This study presents an automated approach for characterizing grain morphology in TEM images recorded during ion irradiation. By combining a machine learning model and a computer vision algorithm, comparable results to human analysis can be achieved with significantly reduced analysis time. Researchers can train their own models following the procedures described in this study to automate grain morphology analysis of their own TEM images.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Shihao Wu, Dong Wang, Yapei Zhang, Koji Okamoto, Marco Pellegrini, Wenxi Tian, Suizheng Qiu, G. H. Su
Summary: The oxidation and degradation mechanisms of Cr coating on Zr alloy cladding under high temperature steam atmosphere are summarized, and a mathematical analysis model is established to predict the changes in coating thickness. The model is applied in the analysis of structure evolution under different conditions.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
V. Diaz-Mena, J. de Prado, M. Roldan, I. Izaguirre, M. Sanchez, M. Rieth, A. Urena
Summary: The brazeability of a cupronickel alloy was evaluated as a filler alloy for high-temperature joining of tungsten to steel. The study investigated the brazing conditions and the impact of the selected filler on the joint quality using numerical software. The results showed different metallurgical interactions and diffusion phenomena between the filler alloy and the base materials at different temperatures. The study emphasized the importance of selecting a suitable filler to mitigate residual stresses in the joints.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Pengcheng Zhu, Yajie Zhao, Yan-Ru Lin, Jean Henry, Steven J. Zinkle
Summary: This study investigates the effect of heavy-ion irradiation on radiation hardening in high-purity binary alloy Fe18Cr. Nanoindentation testing and high-quality TEM imaging were conducted to extract hardness and microstructure information. The strength factor was accurately calculated based on the detailed TEM characterization of irradiated microstructures, and a refined hardening superposition method was applied to quantify the mechanical properties of ion-irradiated materials.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Bin Wu, Haixia Ning, Hanzhen Zhu, Jianjun Chen, Kang Wang, Daiyu Zhang, Fu Wang, Qilong Liao
Summary: This study discusses the effects of ZrO2 and B2O3 on the phase composition and properties of SAP-based glass-ceramics. The results show that ZrO2 addition improves the formation of NZP phase while restricting the crystallization of AlPO4 phases. The correct ratios of ZrO2 and B2O3 allow only the formation of NZP phase within the SAP glass.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Hwasung Yeom, Greg Johnson, Benjamin Maier, Tyler Dabney, Kumar Sridharan
Summary: Cr-Nb bilayer coatings were developed using cold spray deposition to improve the limiting operational temperature of Cr-coated Zr-alloy system. The coatings exhibited outstanding oxidation resistance at high temperatures and formed continuous intermetallic compound layers at the interfaces.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Padhraic L. Mulligan, Andrew T. Nelson, Chad M. Parish, Patrick A. Champlin, Xiang Chen, Daniel Morrall, Jason M. Harp
Summary: Environmental barrier coatings are being developed to reduce oxidation and embrittlement in Zr-based materials. Chromium nitride is a candidate for this application, but understanding its impact on irradiation-induced creep and microstructure is critical.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Dexuan Yan, Xinlei Cao, Ke Shen
Summary: This study investigated the purification mechanism of polycrystalline graphite by comparing IG-11 graphite with IG-110 nuclear grade graphite. The analysis revealed that metallic impurities in IG-11 were primarily segregated within graphite porosities, while IG-110 demonstrated a significant reduction in impurities. This research contributes to the development of innovative graphite purification techniques for greater purity and stronger oxidation resistance.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Wei Xu, Wei Peng, Lei Shi, Qi Sun
Summary: This paper investigates the oxidation and shape evolution of matrix graphite in high temperature gas-cooled reactors during air-ingress accidents. A reaction kinetics model is established and computational fluid dynamics with a dynamic mesh method is used to simulate the oxidation process. The results show that the geometric shape of graphite changes significantly with increasing flow rate, and the graphite pebbles tend to form a structure with a narrow front and wide tail.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Allison Harward, Casey Elliott, Michael Shaltry, Krista Carlson, Tae-Sic Yoo, Guy Fredrickson, Michael Patterson, Michael F. Simpson
Summary: This paper investigates the hygroscopic properties of eutectic LiCl-KCl absorbed into zeolite-4A. The study finds that water absorption and corrosion worsen with increasing salt loading. It also suggests that the salt can be stored in a non-inert atmosphere for a certain period of time.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Takaaki Koyanagi, Xunxiang Hu, Christian M. Petrie, Gyanender Singh, Caen Ang, Christian P. Deck, Weon-Ju Kim, Daejong Kim, James Braun, Yutai Katoh
Summary: This study provides critical experimental data on the effects of irradiation on the hermeticity of SiC composite cladding, finding that irradiation can cause a decrease in hermeticity and cracking, and coating the outer surface can mitigate the cracking issue.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
S. Krat, A. Prishvitsyn, Yu. Gasparyan
Summary: This study proposes a probabilistic and diffusion-based model to describe the co-deposition of multiple hydrogen isotopes with slowly grown metal layers. The model calculates the relative concentrations of different hydrogen isotopes in the co-deposited metal layers. It is found that if hydrogen isotopes have different detrapping energies, only the isotope with the highest detrapping energy shows a monotonic decrease in concentration with deposition temperature. Furthermore, the study evaluates the uncertainty of tritium concentration in the co-deposited layer based on the uncertainty in detrapping energy of tritium and deuterium, predicting a >10% tritium concentration uncertainty for a 0.01 eV difference.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Tijo Vazhappilly, Arup Kumar Pathak
Summary: This study investigates the effect of Ce atom substitution in UO2 on its thermophysical properties using density functional theory. The results show that the Ce substitution levels and the oxidation state of Ce/U atoms strongly influence the band structure and specific heat capacity of the UO2 lattice. These findings provide important insights into the fuel properties of UO2 under reactor conditions.
JOURNAL OF NUCLEAR MATERIALS
(2024)