Journal of Materials Research and Technology-Jmr&t最新文献

{"title":"Development and 3D printing of PLA bio-composites reinforced with short yucca fibers and enhanced thermal and dynamic mechanical performance","authors":"Mohamed Amine Kacem ,&nbsp;Moussa Guebailia ,&nbsp;Mohammadreza Lalegani Dezaki ,&nbsp;Said Abdi ,&nbsp;Nassila Sabba ,&nbsp;Ali Zolfagharian ,&nbsp;Mahdi Bodaghi","doi":"10.1016/j.jmrt.2025.03.184","DOIUrl":"10.1016/j.jmrt.2025.03.184","url":null,"abstract":"<div><div>Growing environmental pollution and resource limitations have led to intensified research into sustainable materials. This study introduces an innovative 3D printable bio-composite material crafted by reinforcing a polylactic acid (PLA) matrix with short yucca fibres. Fibers from <em>Yucca treculeana</em> leaves were extracted via water retting (WR) and traditional mechanical processing (T). They were then incorporated as powder into PLA to create filaments for 3D printing via fused deposition modeling. A comprehensive set of thermo-mechanical characterization was performed through tensile, compression, flexural, dynamic mechanical analyses, thermal stability, FTIR, SEM, thermogravimetric, fatigue, and water absorption tests. PLA-T category exhibited a 22 % increase in tensile strength (61 MPa) and a 20 % enhancement in compressive strength (89 MPa) over PLA-WR. Similarly, PLA-T achieved a 12 % higher flexural strength (56 MPa) and an extended fatigue life, surpassing PLA-WR by 66 % (40,185 cycles). These findings underscore the critical influence of fiber extraction processes on bio-composite performance and propose PLA-yucca composites as an excellent addition to the sustainable 3D printing material library. With potential applications across automotive, aerospace, and consumer products, this material represents a viable alternative to conventional plastics, advancing the goals of sustainable manufacturing and eco-friendly innovation.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 1243-1258"},"PeriodicalIF":6.2,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143703920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tribocorrosion behavior of aluminum alloys in 3.5 wt% NaCl solution","authors":"Jin Du ,&nbsp;Linlan Hu ,&nbsp;Meng Chen ,&nbsp;Jian Sun ,&nbsp;Qinghua Song ,&nbsp;Jinkun Xiao","doi":"10.1016/j.jmrt.2025.03.182","DOIUrl":"10.1016/j.jmrt.2025.03.182","url":null,"abstract":"<div><div>The tribocorrosion behaviors of 2024-T4, 5052-H112, 6061-T6 and 7075-T6 aluminum alloys were investigated in 3.5 wt% NaCl solution under open circuit potential (OCP) and −1.5V_Ag/AgCl conditions, as well as compared with dry sliding. The phases of the aluminum alloys were evaluated by X-ray diffraction. The morphology and passivation products of the worn surface were analyzed by scanning electron microscopy and X-ray photoelectron spectroscopy methods. Tribocorrosion tests were performed using a reciprocating ball-on-flat tribometer equipped with a three-electrode cell system. Results indicate that the tribocorrosion process involves dual interactions of electrochemical and mechanical forces. Friction exacerbates the corrosion tendency of all aluminum alloys. The E_corr, I_corr values of 2024-T4 in potentiodynamic polarization test are −1.09 V_Ag/AgCl and 30.92 μA/cm², showing the best corrosion resistance during the tribocorrosion tests. The wear rates of 7075-T6 under dry sliding, OCP and −1.5 V_Ag/AgCl are 2.11 × 10⁻³, 1.09 × 10⁻³ and 0.56 × 10⁻³ mm³/N·m, demonstrating the best wear resistance. The dry sliding and tribocorrosion mechanisms of aluminum alloys were also discussed.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 985-997"},"PeriodicalIF":6.2,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"As-solidified microstructure, tensile properties, and deformation mechanisms of a novel nickel-based superalloy fabricated by laser powder bed fusion","authors":"Kunlei Hou ,&nbsp;Yihu Zang ,&nbsp;Jilin Xie ,&nbsp;Xiaofang Liu ,&nbsp;Guangcai Ma ,&nbsp;Yingche Ma","doi":"10.1016/j.jmrt.2025.03.136","DOIUrl":"10.1016/j.jmrt.2025.03.136","url":null,"abstract":"<div><div>This study investigated laser powder bed fusion (LPBF) fabrication of a novel nickel-based superalloy for 750 °C service. By optimizing laser parameters (power/speed), high-density samples with porosities below 0.68 % were achieved within an energy density (<em>E</em>) range of 47–78 J/mm³. Defects arising from inappropriate <em>E</em> settings were analyzed to understand their formation mechanisms. Microstructural analysis revealed a transition from columnar, textured grains to equiaxed ones with decreasing <em>E</em>, linked to the melt pool evolution and grain growth dynamics. Tensile tests under optimal parameters demonstrated enhanced strength and ductility over cast counterparts, mainly attributed to cellular boundaries obstructing dislocation motion. Fracture analysis identified grain boundary cracking as the dominant failure mode, triggered by stress-localizing chain-like carbides. These findings reveal a viable alloy option for LPBF and contribute to the development of property-driven optimization methodologies.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 1202-1214"},"PeriodicalIF":6.2,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to ‘Green synthesis of carbon quantum dots from plant turmeric holds promise as novel photosensitizer for in vitro photodynamic antimicrobial activity’ [J Mater Res Technol 2023; 22: 17-34]","authors":"Hongjun Yan ,&nbsp;Peiyuan Li ,&nbsp;Fangzhou Wen ,&nbsp;Qiuting Xu ,&nbsp;Qing Guo ,&nbsp;Wei Su","doi":"10.1016/j.jmrt.2025.03.171","DOIUrl":"10.1016/j.jmrt.2025.03.171","url":null,"abstract":"","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 1240-1242"},"PeriodicalIF":6.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural, dielectric and mechanical changes in BOPP films under different thermal aging conditions","authors":"Guanxiang Zhang,&nbsp;Xiao Zhang,&nbsp;Junyong Lu,&nbsp;Bofeng Zhu,&nbsp;Tao Ma,&nbsp;Yufeng Dai","doi":"10.1016/j.jmrt.2025.03.176","DOIUrl":"10.1016/j.jmrt.2025.03.176","url":null,"abstract":"<div><div>Polymer film capacitors are widely used in power electronics, automotive, petroleum, and other applications due to their high breakdown voltage, low loss, and high reliability. The thermal aging mechanism of dielectric polymer BOPP is crucial for the exploration of application boundaries in terms of safety. In order to investigate the performance change mechanism of thermally aging films in a systematic manner, thermal aging tests were carried out at 50, 85, and 105 °C for the samples aged for 1, 5, 10, and 15 days, respectively, characterized and compared in terms of structural, mechanical, and dielectric aspects. The experimental results demonstrate that short-term thermal aging is effective in improving the breakdown strength and energy storage density of BOPP films. However, under long-term thermal aging, the films undergo a recrystallization process, which results in increased surface roughness and dielectric loss, along with decreased elongation at break and breakdown field strength. This work opens a novel route for the development of new dielectric materials and heat treatment processes.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 998-1004"},"PeriodicalIF":6.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Micromechanical behavior of individual constituents in dual-phase steels and correlations with macromechanical properties: A review","authors":"Yousef Mazaheri ,&nbsp;Yaser Najafi ,&nbsp;Nozar Anjabin ,&nbsp;Alireza Rezaei ,&nbsp;Behnam Ghaffari","doi":"10.1016/j.jmrt.2025.03.166","DOIUrl":"10.1016/j.jmrt.2025.03.166","url":null,"abstract":"<div><div>Dual-phase (DP) steels, characterized by a microstructure comprising a mixture of hard and soft phases, exhibit a unique combination of strength and ductility, making them ideal for various engineering applications. Despite the extensive research conducted on various aspects of DP steels, there remains a notable absence of a comprehensive review focusing specifically on the micromechanical behavior of individual constituents and their correlations with the macromechanical characteristics of these materials. In this review article, the most widely used techniques for quantifying micromechanical properties are outlined. The latest studies examining the micromechanical behavior of individual constituents in DP steels are reviewed. The relationships between microstructure and micromechanical properties in DP steels are investigated. Recent studies on how the micromechanical characteristics of the constituents correlate with macromechanical properties, including hardness, strength, elongation, and strain hardening are tracked. Recent advancements in micromechanical modeling and simulations that bridge the gap between microstructural features and macroscopic performance, providing insights into the design of DP steels with tailored properties are also highlighted. By synthesizing findings from experimental and theoretical studies, it is aimed to enhance the understanding of how the micromechanical behavior of individual phases influences the overall mechanical performance, ultimately guiding the development of high-performance materials for automotive and structural applications.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 849-887"},"PeriodicalIF":6.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of aging treatments on mechanical, chemical, and antibacterial properties of a β-type Ti–Nb–Cu alloy for implant applications","authors":"Ludovico Andrea Alberta ,&nbsp;Paula Milena Giraldo-Osorno ,&nbsp;Avinash Hariharan ,&nbsp;Jithin Vishnu ,&nbsp;Stefan Pilz ,&nbsp;Andrea Voß ,&nbsp;Anders Palmquist ,&nbsp;Margarita Trobos ,&nbsp;Annett Gebert ,&nbsp;Mariana Calin","doi":"10.1016/j.jmrt.2025.03.179","DOIUrl":"10.1016/j.jmrt.2025.03.179","url":null,"abstract":"<div><div>Bacterial infections are one major cause of metallic implant failure. A metastable β-type 96(Ti–45Nb)–4Cu alloy was developed for potential load-bearing implant applications with tailored antibacterial properties. The cast alloy was initially subjected to homogenization (1000 °C, 24 h, water-quenched), and then aged at two temperatures (425 °C, 640 °C, 8 h). The influence of aged microstructures on structural (XRD, SEM, APT), mechanical (microhardness, tensile tests), and corrosion (potentiodynamic polarization, ion release) behaviour, as well as on macrophage cytocompatibility and antibacterial properties, was studied. The homogenized microstructure consists of a single-phase β, which partially decomposes into β+ω (aging at 425 °C), and into three phases, β+Ti₂Cu+α (aging at 640 °C). The ω phase leads to a drastic increase in yield strength (<em>σ</em>_<em>y</em> &gt; 1 GPa), and concomitant decrease in elongation (<em>ε</em>_max = 2 %). The three-phase alloy shows a moderate yield strength (<em>σ</em>_<em>y</em> = 578 MPa), acceptable elongation (<em>ε</em>_max = 10 %), and low Young's modulus (<em>E</em> = 78 GPa). All three alloys exhibit, in simulated physiological solution, low free corrosion and direct transfer to stable anodic passivity, similar to Ti–6Al–4V. The alloy aged at 425 °C exhibits enhanced corrosion activity in the higher anodic polarization regime due to ω precipitates in the β matrix. The three-phase alloy shows good cytocompatibility with THP-1 macrophages at 24 h. Moreover, it exhibits antibacterial effect against <em>S. aureus</em> at 4 h. In conclusion, the aged alloy containing Ti₂Cu precipitates exhibits a good combination of properties: high strength and elongation, low Young's modulus, excellent corrosion resistance, good biocompatibility, and antibacterial properties.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 1049-1063"},"PeriodicalIF":6.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Finite element analysis and experimental study on electrochemical modification assisted machining of W–Ni–Fe alloy","authors":"Lin Niu ,&nbsp;Xiaoguang Guo ,&nbsp;Qinqiang Wang ,&nbsp;Xiaolin Shi ,&nbsp;Xiaolong Han","doi":"10.1016/j.jmrt.2025.03.167","DOIUrl":"10.1016/j.jmrt.2025.03.167","url":null,"abstract":"<div><div>The traditional cutting process of tungsten heavy alloys (WHAs) suffers from problems including high cutting force, severe tool wear and poor machining quality. In this paper, an electrochemical modification assisted cutting process is proposed to reduce the cutting force. This is achieved by utilizing the selective electrochemical etching property of the WHA in an alkaline sodium carbonate solution, which decreases the stiffness of the cutting layer. A finite element simulation model, which considered the microstructure of two phases, was established to reveal the material removal mechanism before and after electrochemical modification. The simulation clarifies the key factors of the magnitude and fluctuation of the cutting force and explains the mechanism of the effect of electrochemical modification on the cutting force. Cutting experiments on the 95W-3.5Ni-1.5Fe alloy revealed that, compared to traditional cutting, electrochemical modification assisted cutting significantly reduced cutting forces, from 3.034 N to 0.112 N for the PCD tool and from 5.443 N to 0.106 N for the TiAlN-coated carbide tool. Additionally, it effectively suppressed tool wear on both the rake and flank faces and improved surface quality by reducing the surface roughness Sa from 1.667 μm to 0.947 μm and the PV value from 12.713 μm to 10.014 μm. The electrochemical modification assisted cutting process proposed in this paper can potentially solve the WHA machining challenges.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 1215-1225"},"PeriodicalIF":6.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of humid air on the formation of pores and cracks in the scale on high-strength steel: Experimental and first-principle study","authors":"Wentao Song ,&nbsp;Changrong Ran ,&nbsp;Qinglong Li ,&nbsp;Hengxiang Yu ,&nbsp;Taixiong Guo ,&nbsp;Guangming Cao","doi":"10.1016/j.jmrt.2025.03.172","DOIUrl":"10.1016/j.jmrt.2025.03.172","url":null,"abstract":"<div><div>Due to the presence of cooling water between the frames and the descaling process, steel is often subjected to high-temperature and humid conditions during hot rolling, resulting in the formation of numerous pores and cracks in scale. However, there has yet to be a precise theoretical explanation, from a microscopic atomic perspective, regarding the impact of water vapor on the formation of these pores and cracks in iron oxide. This study integrates experimental with first-principles calculations to explore the high-temperature oxidation behavior of high-strength steel in humid air. As the oxidation temperature increases, the scale thickness also increases. Moreover, the number of pores and cracks in the scale exposed to humid air is significantly higher compared to that in dry air. DFT calculations reveal that the water vapor environment promotes the formation of ionic vacancies and pores by lowering the vacancy formation energy in iron oxides. Additionally, calculations on crack propagation energy provide insights into the potential for pore growth to lead to the development of large-scale cracks. These findings offer an atomic-level mechanistic explanation for how water vapor influences the high-temperature oxidation behavior of high-strength steel.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 974-983"},"PeriodicalIF":6.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of microstress distribution non-uniformity in the rolling deformation process of ultra-thin magnesium alloy sheets","authors":"Yihang Liu,&nbsp;Weitao Jia,&nbsp;Chao Xin,&nbsp;Qilin Yan,&nbsp;Wenjie Gao,&nbsp;Fangkun Ning,&nbsp;Junyi Lei","doi":"10.1016/j.jmrt.2025.03.169","DOIUrl":"10.1016/j.jmrt.2025.03.169","url":null,"abstract":"<div><div>This paper analyzes the micro-scale stress distribution non-uniformity during the single-pass rolling process of ultra-thin magnesium alloy sheets. By establishing a macro-micro scale simulation of the rolling process and combining it with experimental investigations, the study explores the effects of different strain rate ratios on stress distribution in the Normal Direction (ND, refers to the thickness direction of the sheet) and Rolling Direction (RD, aligns with the axis of rolling deformation), as well as on the slip systems. This study investigates the microstress distribution non-uniformity in 0.5 mm ultra-thin AZ31 magnesium alloy sheets during single-pass rolling. Experimental and simulation results reveal that increasing the strain rate ratio from 1:1 to 1:2 reduces the rolling force by 8 kN (125 kN–117 kN) and decreases the principal stress in the ND from −125 MPa to −80∼-60 MPa, with stress non-uniformity concentrated at grain boundaries. In the RD, a tensile-compressive mixed state induces stress peaks exceeding 56 MPa. The activation of basal and prismatic slip systems generates opposing shear stresses (−45 MPa vs. +24 MPa), exacerbating intergranular stress conflicts. The direction and distribution of shear stress in different slip systems vary due to differences in grain orientation and the slip stages, resulting in stress conflicts between grains and the formation of opposing positive and negative stress phenomena. These findings demonstrate that adjusting strain rate ratios and texture control can effectively alleviate stress concentration and improve formability, providing critical insights for optimizing industrial rolling processes of ultra-thin magnesium alloy sheets.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 963-973"},"PeriodicalIF":6.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}