Article
Materials Science, Multidisciplinary
Hanna Yang, Thanh Tuan Nguyen, Jaeyeong Park, Hyeong Min Heo, Junghoon Lee, Un Bong Baek, Young-Kook Lee
Summary: In this study, the resistance to hydrogen embrittlement of STS 304 austenitic stainless steel was investigated. The results showed that the resistance decreased with decreasing temperature and disappeared below -150 degrees C. The occurrence of hydrogen embrittlement at temperatures from 25 to -50 degrees C was attributed to strain-induced martensitic transformation and hydrogen diffusion into stress-concentrated regions.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Engineering, Mechanical
Bin Jia, Yaoyue Zhang, Alexis Rusinek, Xinke Xiao, Rugang Chai, Guochao Gu
Summary: Deformation behavior of 304 austenitic stainless steel is systematically studied over a wide range of strain rates using single shear specimens. The results show that the flow stress, temperature sensitivity, and strain rate sensitivity of the material are influenced by the strain rates.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
K. Hajizadeh, K. J. Kurzydlowski
Summary: The paper investigates the possibility of enhancing the yield and ultimate stress of austenitic stainless steels by using equal channel angular pressing (ECAP). An AISI 304 stainless steel was subjected to multiple ECAP passes and the changes in microstructure and mechanical properties were studied. The results revealed significant improvements in both aspects after ECAP processing.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Hui-yun Zhang, Liu-wei Zheng, Tao Wang, Wen-jie Lv, Quan-xin Shi, Jin-yao Ma, Yi Luo, Wei Liang, Jun Hu, R. D. K. Misra
Summary: The research found that in 304 austenitic stainless steel, hydrogen promotes the formation of alpha'-martensite, increases hydrogen diffusion depth, and hydrogen embrittlement sensitivity. Hydrogen is captured by the grain boundary, slightly reducing the material's hardness, but the role of hydrogen in reducing hardness cannot be overestimated.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
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
Engineering, Mechanical
F. Cui, Q. S. Pan, N. R. Tao, L. Lu
Summary: Introducing high density of nanotwins (NT) into metals is considered an effective strategy to achieve superior mechanical properties. Our study found that a heterogeneous structured 304 austenitic stainless steel with NT and micrometer-sized grains exhibited comparable fatigue strength and a larger fatigue limit/strength ratio compared to its counterpart with NT grains and dislocation structures, contrary to traditional fatigue theories. This superior high-cycle fatigue resistance is attributed to a weakened strain-localized fatigue mechanism where NT grains co-deform plastically with a large volume fraction of surrounding microsized grains with enhanced dislocation slipping and martensitic transformation.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Materials Science, Multidisciplinary
Hui-yun Zhang, Jun Hu, Xian-ming Meng, Ying Sun, Tao Wang, Wen-jie Lv, Quan-xin Shi, Jin-yao Ma, Diao-yu Zhou, Wei Liang, Liu-wei Zheng
Summary: The effect of cold/warm rolling on the microstructural characteristics of 304 austenitic stainless steel was quantitatively investigated. It was found that warm-rolled samples exhibited high strength, ductility, and superior hydrogen embrittlement resistance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
J. Tabin, K. Nalepka, J. Kawalko, A. Brodecki, P. Bala, Z. Kowalewski
Summary: A remarkable plastic flow instability is observed during tensile deformation of the commercial 304 stainless-steel sheet at room temperature. The occurrence of plastic flow instability in 304 is dependent on the strain rate and specimen gage length. Moreover, the enhanced strain hardening resulting from deformation-induced martensitic transformation facilitates the orderly propagation of the strain-localized band.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Chengcong Huang, Weihao Cai, Liang Qi, Zhigang Wang, Renguo Guan
Summary: Rare-earth yttrium plays an important role in the hydrogen embrittlement of AISI 321 austenitic stainless steel. It improves ductility by interacting with titanium, improving stress concentration, and reducing hydrogen-induced phase transformation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Multidisciplinary
Fazlollah Sadeghi, Tahereh Zargar, Jong Wan Kim, Yoon-Uk Heo, Jae Sang Lee, Chang Hee Yim
Summary: Chemical and microstructural analyses were conducted on Ni depletion zones in 304 austenitic stainless steel sheets after annealing and cooling at different rates. The study focused on the characteristics and origin of the retained 6-ferrite and ??-martensite phases, with observations of athermal martensite growth and the promotion of martensitic transformation with reduced Ni content. The research confirmed the growth of athermal martensite within twinning boundaries with a specific orientation relationship with the austenite matrix.
MATERIALS CHARACTERIZATION
(2021)
Article
Metallurgy & Metallurgical Engineering
Pan Qingsong, Cui Fang, Tao Nairong, Lu Lei
Summary: Engineering nano-scale twin boundaries is a novel strategy to achieve superior mechanical properties in metallic materials. However, the fatigue behavior of nanotwin-strengthened metals has been rarely explored. In this study, a bulk heterogeneously structured stainless steel containing nanotwin bundles was prepared and investigated under fatigue tests. The nanotwin-strengthened steel exhibited longer fatigue life and higher cyclic flow stress compared to its coarse-grained counterpart. These improved fatigue properties were attributed to the presence of high-strength nanotwin structure and its co-deformation with surrounding grains.
ACTA METALLURGICA SINICA
(2022)
Article
Materials Science, Multidisciplinary
Mehdi Shaban Ghazani, Beitallah Eghbali
Summary: This study investigated the hot deformation behavior and microstructural evolution of AISI 321 austenitic stainless steel under different conditions using hot flow curves and strain hardening exponent. The results showed dynamic recovery, single and multiple peak dynamic recrystallization, and interactions between dynamic recrystallization and precipitation under different conditions.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2021)
Article
Engineering, Civil
Lijun Li, Rui Wang, Hui Zhao, Haoran Zhang, Rui Yan
Summary: This paper presents an experimental investigation on the dynamic mechanical performance of S30408 austenitic stainless steel under elevated temperatures, finding that the stress-strain responses are sensitive to the strain rate and temperature, with the strain-rate sensitivity coefficient increasing as the strain rate and temperature rise. The microstructural observation reveals that the grain dimension declines with an increment of strain rate or a decreasing temperature.
Article
Engineering, Mechanical
B. Jia, A. Rusinek, R. Pesci, R. Bernier, S. Bahi, A. Bendarma, P. Wood
Summary: The deformation behavior of a 304 stainless steel under shear loadings was studied using a novel single shear specimen and a correction coefficient method. The effects of strain rate and temperature on flow stress curves were determined, showing decreased strain hardening rate with increasing strain rate or temperature, and rapid rise in flow stress at very high strain rates. The fracture morphology analysis revealed no well-developed adiabatic shear bands. The study also determined parameters of a modified Johnson-Cook model and found good agreement between experiments and model predictions. Analysis of stress and strain components in the shear zone of the specimen showed dominant roles of shear stress and shear strain, with a low stress triaxiality and Lode angle parameter.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2021)
Article
Metallurgy & Metallurgical Engineering
Xiang Chen, Daisuke Inao, Shigeru Tanaka, Xiao-jie Li, I. A. Bataev, Kazuyuki Hokamoto
Summary: In this study, pure commercial titanium was welded with two types of stainless steel, and the characteristics of wavy interfaces and vortex zones were observed and analyzed. The shear load bearing capacity of the interfaces was investigated, and the experimental results were consistent with the numerical simulation using SPH method.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Chemistry, Physical
Paul Wood, Antonio Diaz-Alvarez, Jose Diaz-Alvarez, Maria Henar Miguelez, Alexis Rusinek, Urvashi F. Gunputh, Gavin Williams, Slim Bahi, Judyta Sienkiewicz, Pawel Platek
Article
Engineering, Manufacturing
L. Delcuse, S. Bahi, U. Gunputh, A. Rusinek, P. Wood, M. H. Miguelez
ADDITIVE MANUFACTURING
(2020)
Article
Engineering, Mechanical
B. Jia, A. Rusinek, R. Pesci, R. Bernier, S. Bahi, A. Bendarma, P. Wood
Summary: The deformation behavior of a 304 stainless steel under shear loadings was studied using a novel single shear specimen and a correction coefficient method. The effects of strain rate and temperature on flow stress curves were determined, showing decreased strain hardening rate with increasing strain rate or temperature, and rapid rise in flow stress at very high strain rates. The fracture morphology analysis revealed no well-developed adiabatic shear bands. The study also determined parameters of a modified Johnson-Cook model and found good agreement between experiments and model predictions. Analysis of stress and strain components in the shear zone of the specimen showed dominant roles of shear stress and shear strain, with a low stress triaxiality and Lode angle parameter.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2021)
Article
Engineering, Mechanical
Bin Jia, Alexis Rusinek, Xinke Xiao, Paul Wood
Summary: The study investigated the thermo-viscoplastic behavior of 2024-T351 aluminum alloy under different conditions and developed a constitutive model to accurately describe the material's deformation behavior. The results showed that dynamic strain aging and the effects of temperature and strain rate have significant impacts on the sensitivity of the material. Consideration of actual strain rates in the establishment of constitutive models is important for precise engineering calculations.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2021)
Article
Engineering, Mechanical
Bin Jia, Yaoyue Zhang, Alexis Rusinek, Xinke Xiao, Rugang Chai, Guochao Gu
Summary: Deformation behavior of 304 austenitic stainless steel is systematically studied over a wide range of strain rates using single shear specimens. The results show that the flow stress, temperature sensitivity, and strain rate sensitivity of the material are influenced by the strain rates.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2022)
Article
Engineering, Mechanical
Yunfei Deng, Ang Hu, Xinke Xiao, Bin Jia
Summary: The Johnson-Cook plasticity and fracture models provide a good theoretical basis for predicting ballistic performance but cannot accurately reproduce the fracture behavior of some metals. Lode parameter-dependent fracture criteria have effectively improved this deficiency. The flow stress behavior and fracture loci of ZK61m magnesium alloy are significantly Lode dependent, and better prediction accuracy is observed when considering Lode parameter in both the plasticity model and fracture criterion simultaneously.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2021)
Article
Engineering, Mechanical
Xinke Xiao, Yahui Shi, Yaopei Wang, Xiaozhen Chen, Bin Jia
Summary: This study investigates the ballistic impact behavior of double-layered aluminum alloy plates and compares the predictions of two fracture criteria, one independent of Lode angle and one dependent on Lode angle. Experimental results show that using double-layered plates increases the ballistic resistance by 30%. Numerical simulations demonstrate that the Lode dependent fracture criterion predicts the ballistic limit velocities more accurately and captures the fracture patterns in more detail compared to the Lode independent criterion.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Yahui Shi, Ang Hu, Taisheng Du, Xinke Xiao, Bin Jia
Summary: This study demonstrates the importance of considering the Lode angle in fracture criterion for predicting the penetration resistance of high-strength steel plates. The results show that the Lode-dependent ASCE fracture criterion can provide more accurate predictions of the ballistic limit velocity (BLV).
Article
Engineering, Mechanical
Jue Han, Yahui Shi, Qianqian Ma, Vladislav V. Vershinin, Xiaozhen Chen, Xinke Xiao, Bin Jia
Summary: This study investigated the ballistic resistance of 2024-T351 aluminum alloy plates struck by blunt projectiles of different thicknesses through experimental and numerical analysis. It was found that the plates failed by shear plugging regardless of target thickness, and the incorporation of Lode angle into fracture criterion improved the prediction accuracy of ballistic limit velocities.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2022)
Article
Engineering, Mechanical
Bin Jia, Pengwan Chen, Alexis Rusinek, Qiang Zhou
Summary: Using the shear-compression specimen, the thermo-viscoplastic behavior of DP800 steel has been systematically investigated at a wide range of strain rates and temperatures. Non-linear strain rate sensitivity, dynamic strain aging, and the influence of temperature on strain rate sensitivity have been observed. A constitutive model has been established to accurately predict the flow stress curves of DP800 steel.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Review
Engineering, Mechanical
Qiang Zhou, Bin Jia, Baoqiao Guo, Rui Liu, Lei Zhu, I. A. Bataev, Pengwan Chen
Summary: The bonding strengths of explosive welding interfaces greatly influence the strengths of welded composites. In this study, small-sized S-shaped specimens were used to investigate the dynamic shear properties and failure mechanisms of the bonding interface in explosively welded titanium/steel composites. Experimental results showed that the bonding interface strength increased with an increase in strain rate, and the presence of non-uniform defects led to fluctuations in shear strengths and failure strains.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Industrial
Yansong Guo, Bin Jia, Qiang Zhou, Rui Liu, Ali Arab, Wen Chen, Yeping Ren, Chun Ran, Pengwan Chen
Summary: In this study, the Ti6Al4V alloy was treated by explosion hardening (EH) technique to produce a gradient microstructure with hierarchical nanotwins. The EH treatment significantly enhanced the tensile and compressive strengths of the alloy, mainly due to the formation of hierarchical nanotwins. This research may have potential applications in the field of load-carrying capacity, tribological property, and fatigue property of metallic materials.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Chemistry, Physical
Quan Zhao, Xinke Xiao, Ruicong Ge, Yin Zhang, Xiaozhen Chen, Bin Jia
Summary: 316L austenitic stainless steel (ASS) is a suitable material for fabricating pressurized hydrogen storage tanks due to its low embrittlement sensitivity and good corrosion resistance. The ballistic impact behavior of 316L ASS was studied against blunt and ogival nose projectiles, and it was found that the shape of the projectile influences the impact behavior. Blunt projectiles cause shear plugging with ejected plugs, while ogival projectiles result in ductile hole enlargement and the formation of bulges and fragments on the target. Numerical simulations using different fracture criteria showed that the modified Mohr-Coulomb (MMC) criterion provides more accurate predictions of fracture behavior in ballistic impact tests compared to the Lode independent MJC criterion.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Nanoscience & Nanotechnology
Yansong Guo, Bin Jia, Qiang Zhou, Wen Chen, Yeping Ren, Rui Liu, Ali Arab, Chun Ran, Pengwan Chen
Summary: In this study, explosion hardening technique was used to create a gradient microstructure with martensitic transformation in commercially pure titanium, leading to improved mechanical properties. The experimental results showed changes in phase structure, grain size distribution, dislocation structure, and twin structure. Microhardness tests revealed a hardness gradient layer with a maximum increase of 83% within 3.5 mm from the treated surface. Tensile and compressive tests showed a significant strengthening effect within 2 mm from the treated surface. Overall, the study achieved a rating of 8 out of 10.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Proceedings Paper
Materials Science, Multidisciplinary
Amine Bendarma, Alexis Rusinek, Tomasz Jankowiak, Tomasz Lodygowski, Bin Jia
Summary: This research focuses on the mechanical behavior of aluminum alloy under impact loading using different parameters. Experimental and analytical studies have been conducted to analyze the perforation process in detail, with a range of impact velocities from 40 to 120 m/s. The resistance and absorbed energy by the aluminum sheet under dynamic loading were obtained by measuring initial and residual projectile velocities.
MATERIALS TODAY-PROCEEDINGS
(2021)
Article
Engineering, Mechanical
Rosaria Del Toro, Maria Laura De Bellis, Marcello Vasta, Andrea Bacigalupo
Summary: This article presents a multifield asymptotic homogenization scheme for analyzing Bloch wave propagation in non-standard thermoelastic periodic materials. The proposed method derives microscale field equations, solves recursive differential problems within the unit cell, establishes a down-scaling relation, and obtains average field equations. The effectiveness of this approach is validated by comparing dispersion curves with those from the Floquet-Bloch theory.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Yue Bao, Zhengcheng Yao, Yue Zhang, Xueman Hu, Xiandong Liu, Yingchun Shan, Tian He
Summary: This paper proposes a novel triple-gradient phononic acoustic black hole (ABH) beam that strategically manipulates multiple gradients to enhance its performance. The study reveals that the ABH effect is not solely brought about by the thickness gradient, but also extends to the power-law gradients in density and modulus. The synergistic development of three different gradient effects leads to more pronounced and broader bandgaps in PCs.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Matthias Ryser, Jason Steffen, Bekim Berisha, Markus Bambach
Summary: This study investigates the feasibility of replacing complex experiments with multiple simpler ones to determine the anisotropic yielding behavior of sheet metal. The results show that parameter identifiability and accuracy can be achieved by combining multiple specimen geometries and orientations, enhancing the understanding of the yield behavior.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Wenjun Li, Pengfei Zhang, Siyong Yang, Shenling Cai, Kai Feng
Summary: This study presents a novel two-dimensional non-contact platform based on Near-field Acoustic Levitation (NFAL), which can realize both one-dimensional and two-dimensional transportation. Numerical and experimental results prove the feasibility and ease of this method.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Shuo Liu, Lu Che, Guodong Fang, Jun Liang
Summary: This study presents a novel lamina conjugated bond-based peridynamic (BB-PD) model that overcomes the limitations of material properties and is applicable to composite laminates with different stacking sequences. The accuracy and applicability of the model are validated through simulations of elastic deformation and progressive damage behavior, providing an explanation of the damage modes and failure mechanisms of laminated composite materials subjected to uniaxial loading.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Omar El-Khatib, S. Kumar, Wesley J. Cantwell, Andreas Schiffer
Summary: Sandwich-structured honeycombs (SSHCs) are hierarchical structures with enhanced mass-specific properties. A model capable of predicting the elastic properties of hexagonal SSHCs is presented, showing superior in-plane elastic and shear moduli compared to traditional honeycombs, while the out-of-plane shear moduli are reduced.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Zhi-Jian Li, Hong-Liang Dai, Yuan Yao, Jing-Ling Liu
Summary: This paper proposes a process-performance prediction model for estimating the yield strength and ultimate tensile strength of metallic parts fabricated by powder bed fusion additive manufacturing. The effect of main process variables on the mechanical performance of printed metallic parts is analyzed and the results can serve as a guideline for improvement. The accuracy of the proposed model is validated by comparison with literature.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Saman A. Bapir, Kawa M. A. Manmi, Rostam K. Saeed, Abdolrahman Dadvand
Summary: This study numerically investigates the behavior of an ultrasonically driven gas bubble between two parallel rigid circular walls with a cylindrical micro-indentation in one wall. The primary objective is to determine the conditions that facilitate the removal of particulate contamination from the indentation using the bubble jet. The study found that the bubble jet can effectively remove contamination from the indentation for certain ranges of indentation diameter, but becomes less effective for larger indentation diameters.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
E. Polyzos, E. Vereroudakis, S. Malefaki, D. Vlassopoulos, D. Van Hemelrijck, L. Pyl
Summary: This research investigates the elastic and damage characteristics of individual composite beads used in 3D printed composites. A new analytical probabilistic progressive damage model (PPDM) is introduced to capture the elastic and damage attributes of these beads. Experimental results show strong agreement with the model in terms of elastic behavior and ultimate strength and strain.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
