Journal of Materials Science最新文献

{"title":"Phase field modeling of the Ti–6Al–4V solid-state transformation using synchrotron in-situ heat treatment calibration and validation","authors":"Bonnie C. Whitney,&nbsp;Anthony G. Spangenberger,&nbsp;Diana A. Lados","doi":"10.1007/s10853-025-10641-y","DOIUrl":"10.1007/s10853-025-10641-y","url":null,"abstract":"<div><p>Ti–6Al–4V is a titanium alloy commonly used for its balance of strength, ductility, and heat treatability resulting from its versatile <i>β</i> → <i>α</i>/<i>α</i>′ solid-state phase transformation. Redistribution of <i>V</i> and Al solute species during the transformation is crucial to determining the resulting microstructure and associated mechanical performance, but their concentration evolution in microstructure prediction models has not yet been validated experimentally. This study predicts the Ti–6Al–4V solid-state diffusional transformation using the phase field (PF) method and compares the α phase fraction (<span>({f}_{{alpha }})</span>), <i>β</i> phase <i>V</i> concentration (<span>({V}_{beta })</span>), and <i>β</i> phase Al concentration (<span>({text{Al}}_{beta })</span>) with in-situ synchrotron X-ray diffraction measurements and thermodynamic calculations to perform model calibration and validation. Equilibrium <span>({f}_{{alpha }})</span>, <span>({V}_{beta })</span>, and <span>({text{Al}}_{beta })</span> from isothermal simulations are between experimental and theoretical values, and continuous cooling simulations show increasing accuracy of <span>({f}_{{alpha }})</span> and <span>({V}_{beta })</span> predictions at lower cooling rates. It is observed that <i>V</i> diffuses into the <i>β</i> phase through α lath tips during isothermal transformation at temperatures ≤ 875 °C, as opposed to uniformly across the <i>α</i>/<i> β</i> interface at higher temperatures, suggesting that the relative α lath growth and <i>V</i> diffusion rates influence the transformation behavior. Limitations of the model in accurately predicting the transient variation of <span>({f}_{{alpha }})</span> are related to the nucleation mechanism and model dimensionality, and recommendations are made for further refinements. The model is assessed to be successful for predicting <i>V</i> redistribution, and the study overall deepens insights into mechanisms of the <i>β</i> → <i>α</i> transformation, informs PF model calibration and development, and elucidates process optimization for Ti alloys.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 9","pages":"4343 - 4366"},"PeriodicalIF":3.5,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling the macrosegregation formation mechanism and its impact on properties in dissimilar welding between CoCrFeMnNi high-entropy alloy and 316 stainless steel","authors":"Jiajia Shen,&nbsp;Rae Eon Kim,&nbsp;Martim Mestre,&nbsp;J. G. Lopes,&nbsp;Jingjing He,&nbsp;Jin Yang,&nbsp;Zhi Zeng,&nbsp;N. Schell,&nbsp;Hyoung Seop Kim,&nbsp;J. P. Oliveira","doi":"10.1007/s10853-025-10708-w","DOIUrl":"10.1007/s10853-025-10708-w","url":null,"abstract":"<div><p>High-entropy alloys (HEAs) are increasingly preferred as structural materials in nuclear engineering and aerospace applications. These fields often require the design of dissimilar joints. Here, gas tungsten arc welding (GTAW) was used for the first time to join CoCrFeMnNi HEAs with 316 stainless steel. Microstructural characterization, including electron microscopy, high-energy synchrotron X-ray diffraction, and thermodynamic calculations, along with micro- and macroscale mechanical assessments, was utilized. These methods were instrumental in evaluating and clarifying the effects of the non-equilibrium solidification and weld thermal cycle on the microstructure evolution of the joint. In the fusion zone (FZ), distinctive peninsula-shaped macroscopic segregation area is observed, with its formation being related to the liquidus temperature differences between the base materials (BMs) and the welded metal, compounded by the Marangoni effect. The weld thermal cycle was found to promote multiple solid-state phase transformations in the heat-affected zone (HAZ) adjacent to the CoCrFeMnNi BM, leading to varying degrees of softening. The HAZ near the 316 stainless steel BM maintained its original microstructural and mechanical properties. Fracture predominantly occurred in the FZ, mainly due to the interplay of large columnar grains, macrosegregation effects, and emergence of BCC and σ brittle phases due to the complex chemistry within this region. Thermodynamic modeling validated the formation of these phases. The ultimate tensile strength and elongation at room temperature were approximately ≈493 MPa and ≈10.70%, respectively.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 9","pages":"4432 - 4457"},"PeriodicalIF":3.5,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10853-025-10708-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Evolution of tribological properties of laser cladding 3D transition metal high entropy alloy coatings","authors":"Shuai Li,&nbsp;Yi Sun,&nbsp;Zhongying Liu,&nbsp;Lei Zhou,&nbsp;Tingting Wu,&nbsp;Yanchao Bai","doi":"10.1007/s10853-025-10695-y","DOIUrl":"10.1007/s10853-025-10695-y","url":null,"abstract":"<div><p>High entropy alloys (HEAs) represent an innovative approach in alloy design, characterized by the incorporation of multiple principal elements and a wide array of compositional possibilities. Variations in the type and concentration of alloying elements have been found to modify the coatings' crystal structure, thereby influencing their mechanical and tribological characteristics. The addition of metallic elements (e.g., Cu, Nb, Mo, Ti, Al) has been found to modify the phase structure and grain size of the coatings. Furthermore, the inclusion of non-metallic elements (e.g., C, N, Si, B) and ceramic reinforced particles (e.g., TiN, TiB₂, WC) primarily enhance wear resistance by the formation of reinforcing phases. The primary objective of this work is to investigate the mechanisms by which alloying elements modify the friction and wear properties of HEACs. Furthermore, this work explores the potential applications of HEACs, aiming to establish a theoretical framework to guide future research and practical developments.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 9","pages":"4118 - 4147"},"PeriodicalIF":3.5,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selectivity of carbon dioxide and nitrogen capture on monolayer and bilayer Janus MoSSe: a first principles study","authors":"Huei-Ru Fuh,&nbsp;Jen-Yu Bau,&nbsp;Ching-Ray Chang","doi":"10.1007/s10853-025-10677-0","DOIUrl":"10.1007/s10853-025-10677-0","url":null,"abstract":"<div><p>The Janus MoSSe monolayer has garnered significant attention due to its asymmetry structure and its ability to enhance out-of-plane piezoelectricity. As a two-dimensional transition metal dichalcogenide (TMD) material, MoSSe exhibits a notable sensitivity to gases, attributed to its unique structural composition, which enables specific interactions between the substrate and gas molecules. We investigate the interaction between CO₂, N₂, and the Janus MoSSe using density functional theory. The adsorption performance of pristine, defective and O-doped MoSSe is analyzed and compared. Additionally, the defective MoSSe shows higher adsorption energy than its pristine counterpart, accompanied by a reduced gas-to-surface distance. Variations in the state and charge transfer of electrons between bilayer MoSSe, N₂, and CO₂ are also discussed to understand the mechanisms of gas adsorption.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 8","pages":"3815 - 3829"},"PeriodicalIF":3.5,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Construction of fluorescent inverse opals by direct polymerization and their responsive behavior to solvents","authors":"Fangfang Liu,&nbsp;Yingying Ze,&nbsp;Yujiao Li,&nbsp;Xiaorong Zou,&nbsp;Cheng-an Tao,&nbsp;Jianfang Wang","doi":"10.1007/s10853-025-10707-x","DOIUrl":"10.1007/s10853-025-10707-x","url":null,"abstract":"<div><p>Inverse opals are characterized by their continuous porous structures, which endow them with natural structural colors. The functionalization of inverse opals can be achieved either by modifying and loading functional materials onto their porous framework or by constructing them directly from materials with the desired functionalities. For fabricating fluorescent inverse opals, a common method involves adsorbing or incorporating fluorescent materials into the porous matrix. However, it relies on intermolecular forces such as electrostatic interactions and hydrogen bonding, which may sometimes lead to insufficient binding strength. Herein, fluorescent molecules are directly polymerized into the hydrogel matrix of inverse opal, achieving one-step fabrication of fluorescent inverse opal. The modification based on chemical bonds effectively ensures robust binding stability, while retaining the structural color of photonic crystals. Leveraging the hydrogel’s reversible volume changes and the varying polarity of the molecular chain groups, the resulting inverse opals exhibit responsive behavior to ethanol solutions of varying concentrations and fatty alcohols with different carbon numbers. The study paves the way for harnessing the combined effects of fluorescence and structural color of inverse opals, suggesting their potential in a range of applications including solvent detection, drug delivery, and beyond.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 8","pages":"3724 - 3734"},"PeriodicalIF":3.5,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A quantitative study of electrocaloric performance differences between bulk and MLCC-structured PMN-PT ferroelectric ceramics","authors":"Li-Qian Cheng,&nbsp;Zhengyu Li,&nbsp;Sihan Wang,&nbsp;Wanben Liu,&nbsp;Xinrui Dong,&nbsp;Zixuan Wang,&nbsp;Kai Chen","doi":"10.1007/s10853-025-10706-y","DOIUrl":"10.1007/s10853-025-10706-y","url":null,"abstract":"<div><p>Solid-state cooling technology based on electrocaloric effect (ECE) has attracted worldwide attention due to its high efficiency, environmental benign nature, and cost effectivity. Although different forms of EC materials, i.e., ceramic bulk, multilayer ceramic capacitor, thin film, etc., have applied for EC applications, the impact of different structures on EC performance has not been thoroughly determined. In this study, ceramic bulks and multilayer ceramic capacitor (MLCC)-structured EC materials are directly compared with the same composition of 0.92Pb(Mg_1/3Nb_2/3)O₃-0.08PbTiO₃(PMN-8PT). In order to further figure out the performance improvement caused by geometric design, the dielectric layer thicknesses and layer numbers of MLCC structures were varied, while the same effective working volume was maintained. Both indirect and direct measurements were utilized for comparative EC performance analysis of ceramic bulk and multilayer structures. It was observed that MLCC samples with 6 dielectric layers exhibited an enhanced breakdown strength of 142 kV cm⁻¹, achieving enhanced electrocaloric performance of Δ<i>S</i> = 0.979 J kg⁻¹ K⁻¹ and Δ<i>T</i> = 1.285 K. These results indicate that when the effective cooling volume maintains equivalent in ferroelectric materials, the MLCC samples with reduced dielectric layer thickness exhibit an enhancement in the EC performance. It could be concluded that the MLCC structure would be beneficial for high EC performance, especially in terms of practical applications.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 8","pages":"3890 - 3898"},"PeriodicalIF":3.5,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The active corrosion protection of layered double hydroxides inhibitor nanocontainers: a review","authors":"Mingmei Cao,&nbsp;Mohan Li,&nbsp;Quan Zhou,&nbsp;Jinsong Rao,&nbsp;Yuxin Zhang","doi":"10.1007/s10853-025-10705-z","DOIUrl":"10.1007/s10853-025-10705-z","url":null,"abstract":"<div><p>Layered double hydroxides (LDHs) are recognized as a promising material for the prevention of corrosion in metals and their alloys due to their unique structure, composition, controllability and anion exchange properties. However, traditional LDHs can only serve as a physical barrier for short-term protection. To provide additional intelligent self-healing functions, LDHs loaded with corrosion inhibitors have been developed to enhance the protective ability of the coating and improve the durability of the metal matrix. Despite this progress, there is currently a lack of a complete review summarizing the status of different types of LDHs nanocontainers and control of corrosion inhibitor release behavior. This paper reviews recent advancements in metal corrosion protection using LDHs loaded with corrosion inhibitors, including the preparation process and anti-corrosion mechanism of LDHs loaded with corrosion inhibitors. Additionally, factors affecting the release behavior of corrosion inhibitors are analyzed, and existing problems and future development trends are proposed and discussed.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 8","pages":"3663 - 3685"},"PeriodicalIF":3.5,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbon nanofiber-supported SnSe as self-supporting anode for sodium ion battery","authors":"Mengwei Lu,&nbsp;Ying Huang,&nbsp;Bowei Song,&nbsp;Chen Chen","doi":"10.1007/s10853-025-10618-x","DOIUrl":"10.1007/s10853-025-10618-x","url":null,"abstract":"<p>Because of the huge volume changes in the process of charging and discharging, the application of SnSe in the anode materials of sodium ion batteries (SIBs) is limited, while the development of carbon nanofiber (CNF) anode is also restricted due to its lower theoretical capacity. Therefore, in this paper, SnSe is loaded on the surface of CNF by a simple liquid-phase reaction, in order to combine the advantages of both and improve their shortcomings to prepare a SIBs anode material with good electrochemical properties. The prepared tin selenide composite carbon nanofiber (CNF-SnSe) can be used directly in the self-supporting anode of SIBs. As expected, the CNF-SnSe electrode combined the advantages of CNF and SnSe electrode to show high electrochemical properties. When the current density is 0.1 A g⁻¹, the initial discharge specific capacity can reach 644.9 mA h g⁻¹, and the reversible specific capacity is 355.7 mA h g⁻¹ after 200 cycles. And at 2 A g⁻¹ after 1000 cycles it still has a reversible specific capacity of 261.3 mA h g⁻¹. Therefore, this work offers a reference to the preparation of self-supporting anode materials for high-performance SIBs.</p><p>CNF-SnSe has good cycling performance in sodium ion batteries.</p>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 8","pages":"3899 - 3911"},"PeriodicalIF":3.5,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanism of strength-plasticity synergy in gradient nano-grained Al0.1CoCrFeNi high-entropy alloys with different grain-size gradients","authors":"Yuanhao Li,&nbsp;Zhaoyang Hou,&nbsp;Kehao Nan,&nbsp;Kefan Li,&nbsp;Pengfei Zou,&nbsp;Quanhua Gao,&nbsp;Lei Gao,&nbsp;Gang Shi,&nbsp;Sha Sha,&nbsp;Kejun Dong,&nbsp;Lixia Liu","doi":"10.1007/s10853-025-10710-2","DOIUrl":"10.1007/s10853-025-10710-2","url":null,"abstract":"<div><p>Gradient nano-grained (GNG) high-entropy alloys (HEAs) generally exhibit an excellent balance of plasticity and strength compared to homogeneous alloys, but their mechanical behaviors vary significantly with grain size distributions. This work has systematically investigated the mechanical behaviors and deformation mechanisms of GNG Al_0.1CoCrFeNi HEAs with various grain-size gradients using molecular dynamics. The results have indicated that the grain-size gradient induces stress and strain gradients, and results in more dislocations and a unique multiaxial stress state, which contribute to the strength-plasticity synergy in the GNG structure. The deformation mechanism of GNG Al_0.1CoCrFeNi HEA involves dislocation slip in low strain level, martensitic transformation, and twinning in high strain level. The GNG Al_0.1CoCrFeNi HEA with a grain size gradient rate of <i>n</i> = 3 exhibits the best strength-plasticity synergy due to its significant strain and stress gradients, alongside notable deformation-induced twins and martensite. These simulation results are consistent with the strain gradient theory and some experimental reports.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 8","pages":"4035 - 4052"},"PeriodicalIF":3.5,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Ti + Al content on the microstructure and mechanical properties of a new nickel-based superalloy fabricated by laser directed energy deposition","authors":"Tong Yang,&nbsp;Li Zhao,&nbsp;Wenxing Wu,&nbsp;Pinghu Chen,&nbsp;Changjun Qiu","doi":"10.1007/s10853-025-10686-z","DOIUrl":"10.1007/s10853-025-10686-z","url":null,"abstract":"<div><p>Laser additive manufactured high γ′-phase nickel-based superalloys have a high cracking susceptibility due to the unique characteristics of superalloys, which can hinder their widespread application. This work overcomes the above challenges via a compositional optimization strategy, and a novel nickel-based superalloy with high γ′ phase has been developed via laser directed energy deposition (LDED). The effects of the various Al + Ti (1:1) contents (6.4, 6.6 and 6.8 wt.%) on microstructure and mechanical properties (room temperature, 850 °C and 900 °C) of the as-deposited and heat-treated specimens were investigated. Ultimately, the crack-free Ni-based superalloy has been successfully designed and fabricated by LDED, featuring a high γ′ phase content. The results indicated that the γ′ phase content and the number of the MC carbide particles increase with the increasing Ti + Al content. When the Ti + Al content is 6.6 wt.%, the newly designed Ni-based superalloy exhibits exceptional tensile properties (UTS: 1450 ± 42 MPa, YS: 1100 ± 36 MPa and EL: 16.5 ± 1.1%). After heat treatment, the γ′ phase, bulk-like (MC), long strips-like (M₂₃C₆) carbide and moderate amount of needle-like σ phase are present in the alloy with Ti + Al content of 6.6 wt.%. Therefore, the newly designed Ni-based superalloy exhibits superior tensile properties at 850 °C (UTS: 818 ± 34 MPa, YS: 774 ± 29 MPa and EL: 10 ± 0.7%) and 900 °C (UTS: 581 ± 28 MPa, YS: 558 ± 20 MPa and EL: 11.7 ± 0.9%). This approach provide a new alloy design route for achieving optimization of high-temperature mechanical properties and formability of nickel-based superalloys with high γ′ phase for laser additive manufacturing.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 8","pages":"3957 - 3973"},"PeriodicalIF":3.5,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}