Article
Materials Science, Multidisciplinary
Zhiliang Li, Feng Jiang, Lele Liu, Ying Wang
Summary: The fatigue crack growth behavior of Al-Mg and Al-Mg-Sc-Zr alloys was studied under different orientations and stress ratios, and the microstructures and fracture morphologies of each alloy were observed. Both alloys exhibited Brass, S, and Goss textures, while only the Al-Mg alloy showed Cube texture, indicating recrystallization. As the fatigue crack propagated, intergranular fracture transformed into transgranular fracture with gradually coarser crack surfaces. The Al-Mg alloy had large recrystallized grain, favorable plasticity, rougher crack surfaces, and relatively strong crack growth resistance before rapid growth, while the Al-Mg-Sc-Zr alloy had small grain size and relatively smoother crack surfaces, showing cyclic stability at higher ΔK level.
MATERIALS SCIENCE AND TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Elena Avtokratova, Oleg Sitdikov, Michael Markushev, Michael Linderov, Dmitry Merson, Alexey Vinogradov
Summary: This study explores the fabrication of ultrafine-grain advanced aluminium alloys using multiaxial isothermal forging (MIF), achieving an outstanding combination of tensile strength, ductility, and fatigue resistance. After multiple processing steps, the alloy shows superior mechanical properties compared to contemporary alloys and commercial high-strength alloys.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Anderson Thadeu Nunes, Guilherme Lisboa de Gouveia, Jose Eduardo Spinelli
Summary: This study investigates the influence of cooling rates on the phase morphology and tensile properties of ternary Al-Mg-Sc alloys. It was found that higher amounts of Mg result in higher solidification rates and the formation of a variety of microstructures. Among the alloys studied, the Al-5 wt% Mg-Sc alloy exhibited superior tensile strength due to the predominance of cells and thinner primary dendrites trunks forming its microstructure.
MATERIALS CHARACTERIZATION
(2023)
Article
Engineering, Mechanical
R. Sepe, V. Giannella, N. Razavi, F. Berto
Summary: This study investigates the mechanical properties of the aluminium lithium alloy Al-Li 2198-T851 in both longitudinal and transversal rolling directions. It is found that the material exhibits enhanced mechanical properties compared to 2024-T3 in both directions, but the transversal direction shows significantly lower performances.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Chemistry, Physical
Fei Liu, Zhiyi Liu, Guangyu He
Summary: The microstructure evolution and its effect on the strength properties and fatigue performance of the Al-Cu-Mg alloy have been investigated. The results show that refining Goss-oriented grains can improve the strength-ductility trade-off and reduce the fatigue crack propagation rate.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Sabry S. Youssef, Xiaodong Zheng, Min Qi, Yingjie Ma, Sensen Huang, Jianke Qiu, Shijian Zheng, Jiafeng Lei, Rui Yang
Summary: The study investigated the influence of Al content and alpha(2) precipitation on the fatigue crack growth behaviors of binary Ti-Al alloys. The results showed that increasing Al content significantly reduces the FCG rate due to enhanced resistance to crack propagation and roughness-induced crack closure. Moreover, the increase in Al content also enlarges the early fatigue crack propagation stage, leading to crack deflection and reduction of FCG rate.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Mingjin Wu, Feng Jiang, Jingyu Jiang
Summary: The high temperature oxidation behavior of Al-Mg-Sc alloy was investigated, and the structure, composition and microstructure evolution near the interface were analyzed. The oxide layer was mainly composed of MgO and small amounts of MgAl2O4, and the phenomenon of grain boundary wetting by the second solid phase was observed.
Article
Chemistry, Physical
V. N. Chuvil'deev, M. Yu Gryaznov, S. Shotin, V. Kopylov, A. Nokhrin, C. Likhnitskii, A. A. Murashov, A. A. Bobrov, N. Yu Tabachkova, O. E. Pirozhnikova
Summary: The study investigated the effect of Sc on the plasticity of ultrafine-grained Al-0.5%Mg alloys at elevated temperatures (from 300 to 500 degrees C) and strain rates (from 10(-3) to 10(-1) s(-1)), showing that the addition of 0.4% and 0.5% Sc can achieve high elongation to failure at 500 degrees C and 1.10(-1) s(-1) strain rate.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Meng-Na Zhang, Hai-Long Jia, Min Zha, Lei Zhao, Zhen-Ming Hua, Cheng Wang, Yi-Peng Gao, Hui-Yuan Wang
Summary: Tailoring recrystallization in low-alloyed rare earth-free Mg alloys is still challenging. In this study, the texture of a dilute cold-rolled Mg-2.2Al-0.33Ca (wt.%) alloy is found to weaken with the appearance of transverse direction (TD) texture components during static recrystallization. The texture transition is attributed to the preferential growth of TD-oriented recrystallized grains due to the preferential segregation of Al and Ca atoms on basal-oriented grain boundaries with low misorientation angles. These findings provide an in-depth understanding of texture modification in Mg alloys.
MATERIALS RESEARCH LETTERS
(2023)
Article
Engineering, Manufacturing
Zehao Qin, Nan Kang, Mohamed El Mansori, Zihong Wang, Haoxiang Wang, Xin Lin, Jing Chen, Weidong Huang
Summary: This study investigates the defects, microstructure, and fatigue properties of Sc and Zr-modified Al-Mg alloy fabricated by laser powder bed fusion (LPBF) in different building directions. The research finds that transversely deposited (TD) samples exhibit higher fatigue strength due to the defects and microstructure. The lack of fusion leads to higher stress concentration in the parallelly deposited (PD) samples, while the indistinctive crack deflection and possible cyclic softening of columnar grains result in decreased fatigue resistance.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Mechanical
Fanghua Shen, Wenfang Li, Chunxiao Xie, Zirong Zhou, Juming Chen, Danqing Yi, Yuqiang Chen, Bo Jiang, Zhenzhong Sun
Summary: The study found that the two-step solid solution process can significantly enhance the texture transition rate and reduce the fatigue crack growth rate in Al-Cu-Mg alloy. Moreover, textures with high Schmid factor and low Taylor factor are prone to induce crack deflection and strengthen planar slip, which further reduces intergranular fatigue crack extension.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Kwangtae Son, Michael E. Kassner, Tae-Kyu Lee, Ji-Woon Lee
Summary: This study investigates the effects of Mg and temperature on the cryogenic impact toughness of Al-Mg alloys. The results show that higher temperatures improve the impact toughness in all Al-Mg alloys. However, beyond a Mg content of 6 wt%, the impact toughness decreases with increasing Mg. AA5083 exhibits the lowest impact toughness due to the presence of coarse inclusions.
MATERIALS & DESIGN
(2022)
Article
Nanoscience & Nanotechnology
K. Masuda, S. Ishihara, N. Oguma, M. Ishiguro, Y. Sakamoto
Summary: The study revealed that twins and plastic deformation anisotropy have a significant impact on the fatigue crack growth behavior in extruded AZ31B magnesium alloys. Tensile twins generated under compressive load can increase the crack opening distance and accelerate the fatigue crack growth velocity. However, in the case of tensile load, the absence of tensile twins due to plastic deformation anisotropy prevents the acceleration of crack growth velocity.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
O. P. Ostash, S. L. Polyvoda, R. Chepil, V. A. Titov, K. O. Gogaiev, V. V. Kulik, M. M. Voron, M. Ya Holovchuk
Summary: This study examines the structure and properties of a novel Al-Mg-Sc alloy with reduced magnesium content and chromium substitution for manganese, as well as microalloyed with lanthanum. The alloy demonstrates higher strength characteristics due to precipitation hardening with secondary chromium and lanthanum intermetallic compounds in the as-cast state after homogenization, and comparable strength and plasticity characteristics after hot and cold rolling. Additionally, the analyzed alloy exhibits superior corrosion resistance and fatigue crack-growth resistance.
Article
Engineering, Manufacturing
Priyanka Agrawal, Sanya Gupta, Saket Thapliyal, Shivakant Shukla, Ravi Sankar Haridas, Rajiv S. Mishra
Summary: In-depth analysis of the microstructure of an AM alloy revealed promising properties for structural applications, with improved strength and ductility due to the presence of precipitates. The study utilized advanced microscopy techniques to study the microstructure and understand the mechanisms behind the enhanced tensile properties.
ADDITIVE MANUFACTURING
(2021)
Article
Materials Science, Multidisciplinary
Yunjia Shi, Paul Rometsch, Kun Yang, Frank Palm, Xinhua Wu
Article
Nanoscience & Nanotechnology
Mengjia Li, Qinglin Pan, Yunjia Shi, Xue Sun, Hao Xiang
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2017)
Article
Nanoscience & Nanotechnology
Yunjia Shi, Kun Yang, Shravan K. Kairy, Frank Palm, Xinhua Wu, Paul A. Rometsch
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2018)
Article
Nanoscience & Nanotechnology
Kun V. Yang, Yunjia Shi, Frank Palm, Xinhua Wu, Paul Rometsch
SCRIPTA MATERIALIA
(2018)
Article
Metallurgy & Metallurgical Engineering
Zou Hao, Pan Qing-lin, Shi Yun-jia, Chen Jing, Xiang Hao, Li Rui-shi, Li Hang
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2018)
Article
Engineering, Chemical
Junxiao Wang, Mengjia Li, Chong Liu, Yong Liu, Tongkun Zhao, Pengfei Zhai, Jingtao Wang
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2019)
Article
Chemistry, Physical
Yaru Liu, Qinglin Pan, Hang Li, Zhiqi Huang, Ji Ye, Mengjia Li
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Electrochemistry
Jingtao Wang, Pengfei Zhai, Tongkun Zhao, Mengjia Li, Zhihao Yang, Haoqin Zhang, Jiajia Huang
ELECTROCHIMICA ACTA
(2019)
Article
Chemistry, Physical
Yuhong Luo, Qinglin Pan, Yuqiao Sun, Shuhui Liu, Yuanwei Sun, Liang Long, Xinyu Li, Xiaoping Wang, Mengjia Li
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Multidisciplinary
Liang Long, Qinlin Pan, Mengjia Li, Ji Ye, Yuqiao Sun, Weiyi Wang, Yuhong Luo, Xinyu Li, Zhuowei Peng, Shuhui Liu
Article
Materials Science, Multidisciplinary
Shuhui Liu, Qinglin Pan, Mengjia Li, Xiangdong Wang, Xin He, Xinyu Li, Zhuowei Peng, Jianping Lai
MATERIALS & DESIGN
(2019)
Article
Chemistry, Physical
Shuhui Liu, Xiangdong Wang, Qinglin Pan, Mengjia Li, Ji Ye, Kuo Li, Zhuowei Peng, Yuqiao Sun
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Multidisciplinary
Yuqiao Sun, Qinglin Pan, Yuhong Luo, Yaru Liu, Yuanwei Sun, Liang Long, Mengjia Li, Xiaoping Wang, Shuhui Liu
MATERIALS CHARACTERIZATION
(2020)
Article
Engineering, Mechanical
Miloslav Kepka, Miloslav Kepka Jr, Radovan Minich
Summary: This paper focuses on the fatigue life evaluation of the bodywork of a new articulated electric (battery) bus. The findings resulted in recommendations to improve the operational reliability of a particular vehicle and provided challenges for future research.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
T. Dusautoir, B. Berthel, S. Fouvry, P. Matzen, K-D. Meck
Summary: This study investigates the impact of post-processing treatments on the fatigue limit of additive manufactured Ti-6Al-4V under stress gradients, with a focus on surface integrity.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Zhuofan Xia, Di Wu, Xiaochen Zhang, Jianqiu Wang, En -Hou Han
Summary: The study reveals the surface-initiated rolling contact fatigue (RCF) failure mechanism under heavy load and initial high roughness surface. The results indicate that precursor of collapsed morphology and nanocrystalline layer are the main factors causing lower RCF life with high roughness compared to low roughness surfaces. The spalling failure initiating from low roughness surface under heavy load is strongly dependent on surface plastic deformation.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Daniel Gren, Knut Andreas Meyer
Summary: Rolling contact loading can cause plastic deformation and fatigue cracks. Current rail standards do not consider the effect of plasticity on mechanical behavior. This study proposes a new method for evaluating the fatigue life of deformed material and finds that superimposed compressive axial loads can increase fatigue life.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
R. Kumar, S. Sanyal, J. Bhagyaraj, E. Hari Krishna, S. Mukherjee, K. Prasad, S. Mandal
Summary: This study investigates the thermomechanical fatigue (TMF) behavior of Timetal 834 alloy under different loading conditions. The results show that the alloy exhibits different cyclic hardening and softening responses at different strain amplitudes. The strain amplitude and phase angle have significant effects on the TMF life.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Kai Donnerbauer, Tobias Bill, Peter Starke, Ruth Acosta, Bharath Yerrapa, Christian Boller, Klaus Heckmann, Frank Walther
Summary: Given the aging of nuclear power plants, it is important to develop methods for evaluating the integrity of components and structures in nuclear engineering. Suitable nondestructive testing methods can detect material degradation and determine its fatigue life. This study utilized various NDT parameters and scanning electron microscopic methods to explore the relationship between microstructure evolution and NDT data.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Liuyong He, Jiang Zheng, Tianjiao Li, Houkun Zhou, Lihong Xia, Bin Jiang
Summary: This study quantitatively analyzed the effects of precipitates on the deformation mode, cracking mode, and mechanical behavior of WE54 magnesium alloy during low-cycle fatigue. It was found that precipitates promoted the activation of dislocation slip and suppressed the activation of twinning, affecting the cracking mode and mechanical behavior.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Xiangkang Zeng, Conghui Zhang, Wenguang Zhu, Mingliang Zhu, Tongguang Zhai, Xiaomei He, Kangkai Song, Zhuohang Xie
Summary: The cyclic deformation behaviors and damage mechanisms of pure Zr were investigated. The cyclic stress response was mainly influenced by substructure evolutions. Prismatic < a > dislocation slip was identified as the dominant deformation mechanism. Fatigue damage was not only influenced by the initial texture, but also other factors.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Jingyu Yang, Bingbing Li, Yiming Zheng, Gang Chen, Xu Chen
Summary: Heat treatment is used to improve the low-cycle fatigue performance of additive manufactured 316LN stainless steel. The heat-treated material demonstrates initially cyclic hardening followed by softening behavior, and shows a stronger resistance to crack propagation compared to the as-built material, resulting in a longer fatigue life.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Lang Zou, Dongfang Zeng, Xiong Chen, Jun Li, Hai Zhao, Liantao Lu
Summary: This study investigates the competitive relationship between fretting fatigue and plain fatigue in press-fitted railway axles. By changing the depth of the stress relief groove, the plain fatigue limit and fretting fatigue strength were tested. Detailed information was gathered, and an evaluation methodology integrating finite element simulation and the Modified Wohler Curve Method was established. The study concludes that the optimal groove depth, which balances the anti-fatigue capabilities, depends on the number of test cycles.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Davide Leonetti, Koji Kinoshita, Yukina Takai, Alain Nussbaumer
Summary: This paper investigates the fatigue behavior of non-load-carrying transverse welded steel attachments, including fatigue crack monitoring and fracture surface analysis under constant and variable amplitude loading. A procedure is proposed to obtain a Markov transition matrix based on the measured strain signal and to randomly resample the stress history for variable amplitude fatigue tests.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Zhe Zhang, Bing Yang, Yuedong Wang, Shoune Xiao
Summary: This paper presents a method for designing fatigue life prediction models with small sample sizes by handling limited sample data. The method integrates the equivalent structural stress method with the maximum likelihood estimation method and adds reliability verification, resulting in enhanced goodness of fit, stability, and optimized sample quantity.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Cooper K. Hansen, Gary F. Whelan, Jacob D. Hochhalter
Summary: This paper presents a method to address the computational demand issue of computing FIPs using CPFEM by developing an interpretable machine learning model. Genetic programming is used to evolve interpretable expressions of FIPs from microstructure features, and these models can serve as efficient substitutes for CPFEM and be easily integrated into engineering workflows.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Luca Susmel
Summary: This paper discusses the problem of estimating notch fatigue limits using machine learning. The results show that machine learning is a promising approach for designing notched components against fatigue. The accuracy in estimating the fatigue limit can be increased by increasing the size and quality of the calibration dataset, as well as including additional input features.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)
Article
Engineering, Mechanical
Kefeng Gao, Guoqi Tan, Yanyan Liu, Qiang Wang, Qian Tang, Xuegang Wang, Qiqiang Duan, Zengqian Liu, Zhe Yi, Zhefeng Zhang
Summary: Bioinspired architectures have significant effects on material enhancement. This study investigates the fatigue properties of bioinspired ceramic-polymer composites and natural nacre, revealing the close relationship between architectural types, orientations, fatigue performance, and damage mechanisms.
INTERNATIONAL JOURNAL OF FATIGUE
(2024)