Article
Crystallography
Haiding Liu, Dongzhe Wang, Linping Zhou, Jia She, Wei Wu
Summary: This study investigated the aging behavior and evolution of mechanical properties of the wrought 945A Ni-based superalloy, showing that the compressive yield stress significantly improved by increasing aging time, leading to an increase greater than 220%. This improvement was mainly attributed to precipitates formation, and the precipitation behavior and strengthening mechanisms were discussed in detail.
Article
Materials Science, Multidisciplinary
Jalal Al-Lami, Phuc Hoang, Catrin Davies, Talha Pirzada, Minh-Son Pham
Summary: Through experiments and microstructural characterization, the role of microstructure in spatial strain development and crack initiation in hybrid wrought-AM Inconel 718 has been revealed. The study found that severe inhomogeneous plastic deformation occurred in the AM side due to large columnar grains that were preferentially oriented for dislocation slip. The lower work-hardening rate in the AM region caused a higher thinning rate during deformation, promoting strain localization in the AM side. The degradation in ductility of AM Inconel 718 was a result of the interaction between the brittle Laves phase and the localized slip bands, leading to early crack initiation and final fracture of the hybrid component.
MATERIALS CHARACTERIZATION
(2023)
Article
Engineering, Mechanical
Matthew J. Mills, Jacob L. Biddlecom, Benedict Pineyro, Tariq A. Khraishi, Scott J. Grutzik, Adam R. Brink, Matthew R. W. Brake, Kyle L. Johnson
Summary: Fe-Co-2V is a soft ferromagnetic material commonly used for electrical components. This study characterizes its fatigue properties through strain-controlled testing and fractography, providing valuable information for fatigue analysis and modeling.
JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME
(2022)
Review
Metallurgy & Metallurgical Engineering
Baodong Shi, Chong Yang, Yan Peng, Fucheng Zhang, Fusheng Pan
Summary: This paper critically reviews the relationship between anisotropic mechanical properties and microstructure evolution of wrought magnesium alloys, discussing strong anisotropy induced by texture and twinning under various loading conditions. It comprehensively reviews macro- and meso-scale constitutive modeling approaches to clarify the origin of anisotropic behavior.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Multidisciplinary
Linhan Li, Zhuo Liu, Sammy Tin
Summary: The addition of phosphorus promotes the precipitation of M23C6 carbides at grain boundaries, leading to a significant reduction in creep ductility, while not affecting the transgranular creep strain situation.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2021)
Article
Environmental Sciences
Maciej Liro, Anna Zielonka, Tim H. M. van Emmerik
Summary: This article presents a conceptual framework for studying the fragmentation process of macroplastics in rivers. By identifying the intrinsic properties of plastic items and the extrinsic controls of river characteristics and climate, it helps us understand the fate of macroplastics in rivers and the spread of microplastics in the environment.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Metallurgy & Metallurgical Engineering
Bin Jiang, Zhi-hua Dong, Ang Zhang, Jiang-feng Song, Fu-sheng Pan
Summary: Micro-alloying design is an important strategy to achieve high mechanical properties in wrought magnesium alloys. This review summarizes recent advances in micro-alloying design of wrought magnesium alloys from theoretical and pragmatic perspectives, providing fundamental data for understanding the relationship between chemical composition and mechanical properties. The role of alloying elements in promising magnesium alloys is discussed, and potential challenges in micro-alloying design are highlighted.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Materials Science, Multidisciplinary
Hidetoshi Somekawa, Michiaki Yamasaki, Yoshihito Kawamura, Tadanobu Inoue
Summary: By changing the insertion direction of the rolled billet, it is possible to control the area fraction of deformation kink bands, which can impact the mechanical properties of the alloy.
MATERIALS CHARACTERIZATION
(2021)
Article
Nanoscience & Nanotechnology
Massoud Emamy, Hamed Mirzadeh, Mohammadbaqer Ra'ayatpour, Hooman Abedi
Summary: The microstructural development and mechanical properties of newly developed Mg-5Ni-xAl (x = 2.5, 5, and 7.5 wt%) alloys were investigated. The results showed that increasing the Al content and hot extrusion treatment significantly improved the mechanical properties, resulting in grain refinement and phase dispersion, leading to the best tensile properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Jiapeng Sun, Bangjun Li, Jie Yuan, Xiankai Li, Bingqian Xu, Zhenquan Yang, Jing Han, Jinghua Jiang, Guosong Wu, Aibin Ma
Summary: Developing wrought Mg alloys with excellent mechanical properties, such as an Mg-5.7Gd-1.9Ag wt. % alloy sheet, is crucial for extending Mg alloys' applications. The microstructure of the alloy showed a multiphase precipitate microstructure responsible for the strong aging response, with a suppressed stage II of strain hardening observed in the rolled and aged alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
Nissim U. Navi, Brian A. Rosen, Eyal Sabatani, Jonathan Tenenbaum, Eitan Tiferet, Noam Eliaz
Summary: Thermal decomposition of titanium hydrides in Ti-6Al-4V alloys was compared between electrochemically hydrogenated electron beam melting (EBM) and wrought alloys. The EBM alloy showed greater susceptibility to hydrogen damage at elevated temperatures compared to the wrought counterpart with similar 13-phase content.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Mechanical
Cihan Kaboglu, Jun Liu, Haibao Liu, Pietro Russo, Giorgio Simeoli, Valentina Lopresto, John P. Dear, Chris Maharaj
Summary: The study investigated the effects of a coupling agent on flax fiber-reinforced composites, finding that the agent can enhance the bending stiffness and reduce out-of-plane displacement under impact loading. This approach allows for the production of lightweight composites suitable for applications requiring impact performance.
JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME
(2021)
Article
Materials Science, Multidisciplinary
Hidetoshi Somekawa, Yoshikazu Todaka, Daisuke Ando, Motohiro Yuasa
Summary: The microstructures and mechanical properties of Mg-9at.%Y-6at.%Zn alloy processed by various methods were investigated. Deformation kink bands were induced regardless of the method used, and hardness increased with higher applied strains. The direction and magnitude of shear strains were found to impact the hardness values and multiple shear strains were effective in improving mechanical properties.
Article
Multidisciplinary Sciences
Eleftherios Iakovakis, Egemen Avcu, Matthew J. Roy, Mark Gee, Allan Matthews
Summary: The dry sliding wear behaviour of a high carbon martensitic stainless steel (HCMSS) processed by electron beam melting (EBM) was studied. The material exhibited a microstructure consisting of martensite and retained austenite phases, with a distribution of sub-micron-sized V-rich and micron-sized Cr-rich carbides. The study revealed a decrease in CoF with increasing load, and identified abrasion as the dominant wear mechanism. Cross-sectional hardness mapping showed a plastically deformed zone beneath the wear track. Under more severe wear conditions, phenomena such as carbide cracking, pull-out of V-rich carbides, and matrix cracking were observed.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Mechanical
C. Santus, T. Grossi, L. Romanelli, M. Pedranz, M. Benedetti
Summary: The study proposes an optimization method based on fitting the global properties of the cyclic curves to experimental data to determine the stress-strain behavior of materials under multiaxial cyclic loadings. The method provides an accurate description of the material behavior at a low computational cost. Experimental tests on various materials demonstrate the effectiveness of the proposed method.
INTERNATIONAL JOURNAL OF PLASTICITY
(2023)
