Article
Materials Science, Multidisciplinary
Wenjing Wang, Yingming Tu, Mohan Liu, Xuefeng Liu
Summary: To improve the bonding strength between titanium and stainless steel, the study utilized the corrugated rolling-flat rolling (CFR) process to induce heterogeneous plastic deformation and investigated the interface morphology and strain distribution of CFR titanium/stainless steel compared to flat rolling (FR). The results showed that CFR titanium/stainless steel had a wave-shaped interface with fewer intermetallic compounds and higher interfacial bonding strength than FR titanium/stainless steel, which had a relatively flat interface with numerous continuous intermetallic compounds. The CFR process effectively reduced the formation of continuous intermetallic compounds at the interface and promoted interfacial metallurgical bonding through stronger heterogeneous plastic deformation and increased deformation storage energy. The CFR process is a promising method for preparing titanium/stainless steel with excellent interfacial bonding strength.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Yan Tang, Wangtu Huo, Longlong Dong, Wei Zhang, Haoran Peng, Shuang Zhang
Summary: A thin sheet of Mg rare earth alloy with a thickness of 0.26 mm was successfully prepared by rolling at room temperature with a total reduction of 97.4%. The plastic deformation process was dominated by a deformation mode called continually dynamic micro-nanocrystallization (CDMN), which led to an extreme grain refinement. This work introduces a novel perspective to the plastic deformation field of Mg alloy.
Article
Nanoscience & Nanotechnology
Zhuangzhuang Liu, Xinbo Ni, Wei Sun, Kesong Miao, Yiping Xia, Hao Wu, Zhi Wang, Guohua Fan
Summary: The study reveals that despite having a lower Schmid factor compared to prismatic or pyramidal slip, titanium can still undergo pyramidal slip under the interfacial constraints of a heterogeneous multilayered structure. This behavior is attributed to the strong interfacial constraint and is rationalized by considering the modified Schmid factor under a multiaxial stress state.
SCRIPTA MATERIALIA
(2022)
Article
Nanoscience & Nanotechnology
Yu Gamin, Jairo Alberto Munoz Bolanos, A. S. Aleschenko, A. A. Komissarov, N. S. Bunits, D. A. Nikolaev, A. Fomin, V. V. Cheverikin
Summary: The semi-finished products from a Cu-Ni-Cr-Si alloy are produced for electrical purposes through radial-shear rolling (RSR) and heat treatment, resulting in improved mechanical properties and electrical conductivity. The alloy is thermally hardened after heat treatment due to the precipitation of fine inclusions uniformly distributed in the sample volume, leading to enhanced mechanical properties and electrical conductivity.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
F. Z. Utyashev, G. I. Raab
Summary: A comparison was made on structural changes in a metal billet during longitudinal rolling and equal-channel angular pressing (ECAP). It was found that rolling leads to formation of thin microstrip structure with weakly oriented cells, while ECAP produces ultrafine grained structure. A kinetic equation for the growth of micro-bands with small cells in them was obtained, and recommendations were given to enhance the efficiency of SPD methods.
Article
Chemistry, Physical
Hee Tae Jeong, Jinho Jang, Dong Geun Lee, Dongwook Lee, Woo Jin Kim
Summary: Aluminum has been considered as a potential anode material for lithium-ion batteries due to its advantageous properties. This study introduces a strategy to enhance the mechanical stability of aluminum foil anode through grain refinement and strengthening. The research also presents a model to estimate invisible strain in real-time by monitoring the current during the lithiation process, providing a means to assess the structural integrity of the anode.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Monika Antoni, Florian Spieckermann, Niklas Plutta, Christoph Gammer, Marlene Kapp, Parthiban Ramasamy, Christian Polak, Reinhard Pippan, Michael J. J. Zehetbauer, Juergen Eckert
Summary: The effects of severe plastic deformation (SPD) by means of high-pressure torsion (HPT) on Fe73.9Cu1Nb3Si15.5B6.6 and Fe81.2Co4Si0.5B9.5P4Cu0.8 iron-based metallic glasses were compared. HPT processing extended the consolidation and deformation ranges for Fe73.9Cu1Nb3Si15.5B6.6, and achieved consolidation and deformation with minimum cracks for Fe81.2Co4Si0.5B9.5P4Cu0.8 for the first time. Various analyses revealed that Fe81.2Co4Si0.5B9.5P4Cu0.8 exhibited HPT-induced crystallization phenomena, while Fe73.9Cu1Nb3Si15.5B6.6 did not crystallize even at high HPT-deformation degrees.
Article
Chemistry, Physical
Grzegorz Stradomski, Dariusz Rydz, Tomasz Garstka, Michal Palega, Tomasz Dyl, Arkadiusz Szarek, Justyna Lukomska Szarek, Tomasz Dembiczak
Summary: This paper presents the results of research on the influence of kinetic asymmetry of work rolls on structural changes in hot-rolled bimetallic sheet metals. The research conducted showed that introducing asymmetric conditions to the rolling process results in finer grain fragmentation in the hard layer and does not negatively affect microstructural changes in the soft layer.
Article
Engineering, Civil
Yongxin Zhou, Xingrong Chu, Shunlai Zang, Jiao Sun, Lei Yang, Jun Gao
Summary: This study investigates the influence of surface integrity on the fatigue life of 7075-T6 aluminum alloy through the combination of fine turning (FT) process and hydrostatic deep rolling (HDR) treatment. The results show that both increasing pressure deep rolling (IPDR) and constant pressure deep rolling (CPDR) significantly improve the fatigue life of the alloy, attributed to the reduction in surface roughness, increase in surface compressive residual stress, surface micro-hardness, and depth of plastic deformation layer.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Qian Li, Ming Yue, Yuqing Li, Lingqi Liu, Zhanjia Wang, Dongtao Zhang, Weiqiang Liu
Summary: Anisotropic nanocrystalline Nd-Fe-B magnets were successfully prepared by hot rolling technique, which exhibited good uniformity and high magnetic properties. The microstructure, texture, and magnetic properties of the hot-rolled magnets were systematically studied. The deformation process and microstructural evolution were analyzed, and the preparation process and development prospects were discussed.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Mechanical
Jie Zhang, Ruichuan Wang, Yun Zeng
Summary: This study establishes a hydroforming model to investigate the quality control mechanism of bipolar plate hydroforming. The results demonstrate that increasing the pressure in the hydroforming process improves the formability and filling rate of bipolar plates, but can also lead to partial fractures. Moreover, the forming effect of the die's outer radius is better than that of the inner radius, while the draft angle has minimal impact on formability.
ENGINEERING FAILURE ANALYSIS
(2022)
Review
Materials Science, Multidisciplinary
Erhan Baysal, Oguz Kocar, Engin Kocaman, Ugur Koklu
Summary: Research on ultra-fine grain materials has gained attention in recent years, with a focus on improving material properties and decreasing costs. Severe plastic deformation methods have emerged as a good alternative, resulting in materials with grain sizes below 1 μm and positively affecting the mechanical properties.
Article
Chemistry, Multidisciplinary
Kostiantyn Svirzhevskyi, Oleg Zabolotnyi, Jose Machado, Anatolii Tkachuk, Inna Boiarska
Summary: Surface plastic deformation is a productive method that produces products with unique operational properties, such as high quality surface layer and increased support stability. It involves using a tool with regulated geometric characteristics to penetrate and deform the surface layer of the workpiece. This article explores the use of carbide-cutting plates as deforming elements and presents a morphological table for their spatial orientation. The contact interaction between the indenter plate and the workpiece is studied, and rational installation angles for the deforming element are determined based on morphological analysis and applied studies.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Mechanical
Maruff Hussain, Kamal Sharma, Kahtan A. Mohammed, Nikhil Kumar
Summary: In this study, cross cryo-rolling was used to produce ultrafine grained Al alloy. The mechanical properties of the alloy were improved by the cross rolling, with increased strength and ductility compared to room temperature rolling. Microstructural analysis revealed the formation of heavily deformed sub-grains and dislocation tangles, contributing to the improved strength.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2022)
Article
Engineering, Mechanical
Qiang Lin, Shenghui Jiang, Haidong Tian, Haohao Ding, Wenjian Wang, Jun Guo, Qiyue Liu
Summary: This paper studied the influence of plastic deformation layer and crack of rail roller on Magnetic Barkhausen Noise (MBN) signals. A detection equipment based on MBN signals was built and used to detect and characterize the rail plastic deformation layer and cracks. Experimental results showed that MBN signal decreased with the increase in plastic deformation layer thickness, and the formation of cracks led to an abnormal increase in MBN signal due to the release of residual compressive stress.
