Journal of Materials Engineering and Performance最新文献

{"title":"Increasing of Deformation Strength: Evaluating of Local Heating on Selective Laser-Melted AlSi10Mg","authors":"Kadir Aydin,&nbsp;İbrahim Karaağaç,&nbsp;Mehmet Okan Kabakçi,&nbsp;Bayram Sercan Bayram","doi":"10.1007/s11665-025-10775-9","DOIUrl":"10.1007/s11665-025-10775-9","url":null,"abstract":"<div><p>This study investigated the deformation resistance of selective laser melting AlSi10Mg against the applied load and its behavior against bending after local heating. In experimental studies, the bending region of the samples was heated locally at temperatures of 300, 400, and 500 °C and then deformed in V bending dies of 6, 7.5, 9, and 15 degrees. It was observed that the deformation resistance of the samples was sufficient in the dies of 6, 7.5, and 9 degrees and at all temperatures. Therefore, the samples did not flex or break successfully. However, it was observed that at a die angle of 15, only the test samples at RT and 300 °C showed sufficient deformation resistance and flexed successfully, while at 400 and 500 °C temperatures, they could not withstand deformation and broke. The study also examined the effect of district heating temperature on the microstructure. In as-built samples, it was observed that the microstructure was centric at room temperature (RT), and the microhardness value was 131 HV. At the regional heating temperature of 300 °C, it was observed that there was no significant change in the microstructure, and the microhardness value was measured as 130 HV. However, at 400 °C regional heating, it was determined that the dendritic structure started to be replaced by precipitated Si particles, and the microhardness value decreased to 127 HV. It was determined that at 500 °C, the microhardness value decreased to 125 HV due to the growth of the grain structure in the microstructure.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 18","pages":"19895 - 19901"},"PeriodicalIF":2.0,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improvement in Hardness of Al-Ag-Cu Alloy via Equal-Channel Angular Pressing and Subsequent Aging Processes","authors":"V. E. Salazar-Muñoz,&nbsp;J. García-Rocha,&nbsp; Ivonne Kado-Mercado Elías,&nbsp;E. J. Gutierrez-Castañeda,&nbsp;M. A. Urbano-Peña","doi":"10.1007/s11665-025-10680-1","DOIUrl":"10.1007/s11665-025-10680-1","url":null,"abstract":"<div><p>This study investigated the evolution of the hardness and structural characteristics of an Al-6.5%Ag-2%Cu alloy. The alloy was subjected to deformation by route Bc equal-channel angular pressing followed by artificial aging at 150 and 200 °C. Analysis of the aging curves with and without prior deformation indicates a significant increase in hardness attributed to severe plastic deformation rather than to the formation of precipitates during aging. Transmission electron microscopy analysis revealed the presence of nanometer precipitates, characterized by their morphology as γ/γ’ and θ/θ’ phases. Further investigation of the alloy’s mechanical properties and microstructural changes could provide deeper insight into its behavior under various conditions, potentially improving its applicability in engineering applications.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 18","pages":"19902 - 19918"},"PeriodicalIF":2.0,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced Strength of a 14Cr ODS Steel through Y Addition Fabricated Via PM Without Mechanical Alloying","authors":"Yazhong Zhai,&nbsp;Hongyan Che,&nbsp;Xikou He,&nbsp;Hansheng Bao","doi":"10.1007/s11665-025-10756-y","DOIUrl":"10.1007/s11665-025-10756-y","url":null,"abstract":"<div><p>Oxide dispersion strengthened (ODS) ferritic steels are promising materials for Gen IV nuclear reactors owning to their excellent performance in extremely harsh environment. High number density of nano oxide particles within matrix was important reason for its excellent performance. Oxides could be introduced into matrix via the Powder Metallurgy-Hot Isostatic Pressing (PM-HIP). However, effect of oxide forming element on the microstructure and precipitates is not clear. In this study, the 14 Cr ODS steel with and without Y were prepared based on O-containing precursor powders fabricated without mechanical. SEM and TEM were carried out to analysis the microstructure of precursor powder and as-HIPed alloys, tensile properties of the as-HIPed alloys were tested at elevated temperatures as well. Finally, the evolution mechanism of Y element at different stage and its influence on tensile strength were discussed in detail.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 18","pages":"20028 - 20037"},"PeriodicalIF":2.0,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development and Characterization of Biodegradable Hybrid Fiber-Reinforced Sandwich Composites Using Hand Lay-up and Compression Molding Technique","authors":"S Kartik Shubham,&nbsp;Ajay Pandey,&nbsp;Rajesh Purohit","doi":"10.1007/s11665-025-10742-4","DOIUrl":"10.1007/s11665-025-10742-4","url":null,"abstract":"<div><p>The research aims to fabricate and investigate the physical and mechanical properties of hybrid polymer nanocomposites (HPNCs) for potential applications in various industries such as electronics, railways, and aviation. The HPNCs were developed by embedding bi-directional banana and kevlar fibers, along with nanographene oxide (GO) and epoxy as the matrix material. Ultrasonication was employed to achieve uniform dispersion of nano-sized GO particles, and the stacking sequence of fibers and GO content (ranging from 0 to 1 wt.%) were varied. Mechanical testing revealed that the optimum properties, including flexural strength (525.56 MPa), tensile strength (545.18 MPa), hardness (87.68), and interlaminar shear strength (52.23 MPa), were achieved at 0.50 wt.% GO. The highest impact strength (871.6 J/m) was found at 0.25 wt.% of GO. Additionally, physical characterization through density, void content, and water absorption tests, along with FESEM analysis, confirmed the homogeneity and surface morphology of the composites. These results highlight the potential of HPNCs for use in high performance, lightweight applications, offering a sustainable alternative to conventional composites in industries requiring enhanced material properties.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 18","pages":"20436 - 20447"},"PeriodicalIF":2.0,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Interlayer Cooling on Microstructure and Microhardness of FeCoNiCrAl High-Entropy Alloy Fabricated by Laser Additive Manufacturing","authors":"Zengrong Hu,&nbsp;Mingrui Chen,&nbsp;Zhikang Wu,&nbsp;Shuncun Luo,&nbsp;Xiaonan Wang,&nbsp;Jiale Xu,&nbsp;Hai Zhang","doi":"10.1007/s11665-025-10678-9","DOIUrl":"10.1007/s11665-025-10678-9","url":null,"abstract":"<div><p>The FeCoNiCrAl high-entropy alloys prepared by laser additive manufacturing are promising for a wide range of applications. In this study, samples of FeCoNiCrAl high-entropy alloy fabricated by laser additive manufacturing under different process conditions were investigated. In this study, two kinds of laser additive methods without interlayer cooling and interlayer cooling were used, respectively, and the experimental results were compared, and the microstructure and composition were analyzed. The results show that both samples are mainly composed of disordered BCC solid solution and ordered B2 cubic structure. The microstructure of both samples changed from columnar to equiaxed grains due to the different thermal gradients and solidification rates at the top and bottom of each layer. The equiaxed grain size of the sample with interlayer cooling was smaller than that of the sample without interlayer cooling due to the difference in undercooling, which caused the microhardness of the sample with interlayer cooling to be larger than that of the sample without interlayer cooling.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 17","pages":"18426 - 18433"},"PeriodicalIF":2.0,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modulating Structures and Nanocomposites to Boost Thermoelectric Properties of Polycrystalline SnSe by Ag/In Co-doping","authors":"Jize Yu,&nbsp;Fujin Li,&nbsp;Junliang Zhu,&nbsp;Mingqian Hao,&nbsp;Changcun Li,&nbsp;Degang Zhao","doi":"10.1007/s11665-025-10706-8","DOIUrl":"10.1007/s11665-025-10706-8","url":null,"abstract":"<div><p>Polycrystalline SnSe with poor electrical and high thermal transport properties faces great challenges in commercialization, although monocrystalline SnSe boasts a high ZT value. To alleviate this problem, the Ag/In co-doped polycrystalline Sn_{1−2<i>x</i>}Ag_<i>x</i>In_<i>x</i>Se (<i>x</i> = 0.10, 0.15, 0.20) thermoelectric materials are proposed in this work by using vacuum melting/annealing/ball milling process. The co-doping of Ag and In atoms into polycrystalline SnSe matrix effectively modulates the electronic band structure near the Fermi level. At the same time, the introduced endotaxial nanostructure of AgInSe₂ serves as an additional scattering center, effectively scattering lower-energy carriers. This scattering mechanism leads to a substantial increase in the Seebeck coefficient and a marked reduction in lattice thermal conductivity. Notably, the optimized Sn_0.8Ag_0.1In_0.1Se sample exhibited a remarkably low lattice thermal conductivity of 0.29 W m⁻¹ K⁻¹ at 750 K, representing the competitive value reported thus far. The synergistic interplay between the Ag/In co-doping and the endotaxial nanostructure effectively decouples phonon and electron transport in polycrystalline SnSe, leading to a substantial enhancement in its TE performance, providing a novel strategy for the development of practical TE materials with superior performance.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 18","pages":"20240 - 20247"},"PeriodicalIF":2.0,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of Heat Treatment on Microstructure and Mechanical Characteristics of Laser Powder Bed Fused Ti-6Al-4V Alloy: A Comprehensive Investigation","authors":"Mumtaz Rizwee,&nbsp;Deepak Kumar,&nbsp;Md Murtuja Husain","doi":"10.1007/s11665-025-10663-2","DOIUrl":"10.1007/s11665-025-10663-2","url":null,"abstract":"<div><p>The use of post heat treatment is essential in order to enhance the microstructure of additively produced Ti-6Al-4 V to meet the specific requirements set out by the aerospace and automotive sector. Nevertheless, the comprehensive understanding of the correlation between the distinctive microstructural characteristics resulting from heat treatment and the associated mechanical characteristics of Ti-6Al-4 V (Grade 23) produced using laser powder bed fusion (LPBF) technique remains insufficient. The present research work systematically examines the impact of annealing heat treatments (HT) on the microstructural changes and resulting mechanical characteristics of top, side and basal surface of Ti-6Al-4 V (Grade 23) alloy processed through LPBF method. The microstructure was characterized using optical microscopy (OM) and scanning electron microscopy (SEM). The observed microstructure of the as-deposited sample characterized by a coarse lamellar, needle-like and complicated basketweave structures consisting of <i>α</i> + <i>α</i>′ phases. The complex-shaped needle-like <i>α</i> + <i>α</i>′ structures, rod and particle-shaped structure with β phase was observed in HT sample. Elemental analysis of microstructure was performed using energy-dispersive x-ray spectroscopy (EDS). In addition to inducing phase change, heat treatment also effectively minimizes internal defects such as pores, internal cracks and delamination. The tensile strength and microhardness were further examined, according to the various microstructures. The as-built samples had a high tensile strength (UTS) of 1246 ± 10 MPa, but they displayed low ductility with limited elongation of 4.64 ± 0.9% and lower microhardness. The HT sample exhibited higher yield strength (YS). The HT sample exhibited a lowered tensile strength 1138 ± 5 MPa but showed an improved elongation behavior of up to 6.35 ± 0.2% and relatively more microhardness. The annealing HT caused a decrease in UTS, but it also enhanced ductility, microhardness and YS which make it suited for aerospace and automotive applications.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 18","pages":"20223 - 20239"},"PeriodicalIF":2.0,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antimicrobial and Osteogenic Performance Comparison of Titanium Implants between the Conventional Array Structure Surface and Post-etched Surface","authors":"Jian Xiong,&nbsp;Xiaohui Tang,&nbsp;Lei Yu,&nbsp;Dong Xiao","doi":"10.1007/s11665-025-10714-8","DOIUrl":"10.1007/s11665-025-10714-8","url":null,"abstract":"<div><p>Ti implants are often unsatisfactory in clinical use due to bacterial infections and difficulty in generating osteogenic activity. Constructing silver-loaded antibacterial coatings is a feasible surface modification strategy for Ti implants. However, achieving the osteogenic performance of the coating while accurately regulating the release of silver ions remains a huge challenge. Here, we combined hydrothermal chemical method and laser etching technology to prepare two completely different surface structures of silver-loaded titanium dioxide coatings on the surface of titanium implants: arrays and different periodic etching structures. The results indicated that it is difficult to achieve a balance between effective antibacterial and cytotoxicity for conventional array structure silver-loaded coatings. The better the antibacterial effect, the greater the cytotoxicity. Compared with the conventional surface, the cytotoxicity and osteogenic activity of post-laser-etched samples can be significantly improved through modulating surface etching intervals, while maintaining excellent antibacterial effects unchanged. The smaller spacing of the periodic array structure leads to a smoother release rate of silver ions and a higher cell survival rate. This study provides a new and simple approach to promote the research of silver-loaded coatings on medical titanium surfaces with dual and osteogenic and antibacterial properties.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 18","pages":"20420 - 20435"},"PeriodicalIF":2.0,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrosion Behavior of Ti6Al4V/Al2O3 Vacuum Brazed Joints with Ag-Cu Eutectic Filler","authors":"A. C. Alves,&nbsp;E. Ariza,&nbsp;A. Guedes","doi":"10.1007/s11665-025-10734-4","DOIUrl":"10.1007/s11665-025-10734-4","url":null,"abstract":"<div><p>Ti6Al4V/Al₂O₃ vacuum brazed joints were successfully processed at 830 °C using Ag-Cu eutectic foil as filler alloy. Scanning electron microscopy and energy dispersive spectroscopy were used to characterize the brazed joints microstructure and chemical composition. Studies focusing the electrochemical behavior of the base Ti6Al4V alloy and of the brazed joints were performed in 3.5 wt.% of NaCl using open circuit potential, potentiodynamic polarization tests and electrochemical impedance spectroscopy. Polarization resistance tests were also performed through different immersion periods, up to eight days. Brazing produced a multilayered interface mainly composed of Cu-Ti intermetallics and (Ag). Bonding between the metal and ceramic parts of the joint was ensured by a Ti-Cu-Al-O layer formed adjacently to Al₂O₃ sample. The corrosion behavior of the brazed joint was dictated by the preferential dissolution of the CuTi₂, Cu₄Ti, Cu₄Ti₃, Cu₂TiAl and (Cu) formed at the interface and was found to be inferior to that of Ti6Al4V.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 18","pages":"20376 - 20385"},"PeriodicalIF":2.0,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tensile Deformation Behavior of a Novel Nickel-Iron-Based Superalloy after Long-Term Thermal Exposure at 700 °C","authors":"Limin Li,&nbsp;Yingying Dang,&nbsp;Yongli Zhou,&nbsp;Pei Li,&nbsp;Jinyang Huang,&nbsp;Peng Liu,&nbsp;Jintao Lu,&nbsp;Yong Yuan","doi":"10.1007/s11665-025-10731-7","DOIUrl":"10.1007/s11665-025-10731-7","url":null,"abstract":"<div><p>The GH4650T alloy, a prime candidate material for high-temperature superheater/reheater applications in 650 °C class advanced ultra-supercritical coal-fired power units, was subjected to long-term thermal exposure at 700 °C. The thermal stability of the main strengthening <i>γ</i>′ phase and the impact of the <i>γ</i>′ phase’s microstructural characteristics on tensile properties and related deformation mechanisms were investigated by microstructure analysis and mechanical property testing. Experimental results indicate that the size of <i>γ</i>′ phase increases slowly and follows the Lifshitz–Slyozov–Wagner ripening law during thermal exposure, demonstrating good microstructural stability. As the exposure time increases, the tensile strength shows a trend of initial increase followed by a decrease, while the tensile plasticity exhibits the opposite pattern. Notably, after 10,000 h of thermal exposure, the elongation at 700 °C high-temperature tension can still reach about 33%. Transmission electron microscopy was used to observe the dislocation configurations formed after plastic deformation at room and high temperatures with different thermal exposure durations. It was found that with increased exposure time and growth in the size of the strengthening phase, the dominant mechanism of plastic deformation changes. When the exposure exceeds 5000 h, due to the coarsening of the particle size, the critical resolved shear stress required for dislocations to bypass the <i>γ</i>′ phase particles is lower, initiating a Orowan looping mechanism, and dislocations in both room temperature and high-temperature plastic deformation predominantly exhibit this Orowan looping mode.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 18","pages":"20160 - 20167"},"PeriodicalIF":2.0,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}