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Design and preparation of gradient high-entropy alloy composite deposition layer by laser directed energy deposition
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-02-25 DOI: 10.1016/j.matlet.2025.138292
Bin Zhang, Weidong Mu, Yan Cai
{"title":"Design and preparation of gradient high-entropy alloy composite deposition layer by laser directed energy deposition","authors":"Bin Zhang,&nbsp;Weidong Mu,&nbsp;Yan Cai","doi":"10.1016/j.matlet.2025.138292","DOIUrl":"10.1016/j.matlet.2025.138292","url":null,"abstract":"<div><div>Balancing high hardness, strength, and toughness has long been a challenge for high-hardness deposition layers, limiting their thickness and applications. To solve this issue, this study innovatively designs a gradient high-entropy alloy (HEA) deposition layer by constructing a compositional gradient of Ti elements, successfully forming a material with gradient microstructure. This design facilitates a gradient variation in mechanical properties, significantly enhancing the overall performance of the material. The results demonstrated the successful development of a gradient HEA deposition layer with a thickness of 5.5 mm, exhibiting well-matched toughness. The hardness at the top, middle, and bottom of this layer was 528 HV, 361 HV, and 187 HV, respectively. This work offers a new approach to optimizing high-hardness deposition layers and advances the design of thick, wear-resistant materials.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"388 ","pages":"Article 138292"},"PeriodicalIF":2.7,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487228","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}
引用次数: 0
Effect of AA1060 thin layer and cooling rate on the structure and properties of rolled AA5083/TA1/Q235 composite plates
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-02-24 DOI: 10.1016/j.matlet.2025.138287
Yufei Zhu , Bin Xu
{"title":"Effect of AA1060 thin layer and cooling rate on the structure and properties of rolled AA5083/TA1/Q235 composite plates","authors":"Yufei Zhu ,&nbsp;Bin Xu","doi":"10.1016/j.matlet.2025.138287","DOIUrl":"10.1016/j.matlet.2025.138287","url":null,"abstract":"<div><div>This study proposes a high-bonding strength Al/Ti/steel composite plate prepared by differential temperature rolling through heat transfer between different plates using the IHR(induction heating and rolling) method, and analyzed the addition of a thin layer AA1060 between TA1 and AA5083 and the impact of different cooling rates on the interface bonding strength. The results showed that increasing the cooling rate could effectively improve the interface bonding strength. Under oil cooling, the shear strength of Al/Ti and Ti/steel interfaces was 102 and 186 MPa, respectively. The results of EBSD showed that increasing the cooling rate could delay the growth of Al matrix grains, improve the shear strength of the Al/Ti interfaceand reduced the internal stress in the matrix near the Ti/steel interface, and improved the bonding strength of the Ti/steel interface. In addition, the presence of the thin layer of AA1060 effectively not only reduces the temperature difference between the TA1 and Q235 plates but also increases the temperature of the Ti/steel interface, thereby weakening the stress concentration at the Ti/steel interface after rolling, then, resulting in higher bonding strength.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"387 ","pages":"Article 138287"},"PeriodicalIF":2.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487201","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}
引用次数: 0
Effect of temperature on the wear properties of the novel hybrid aluminum composite reinforced with ZrB2 and fly ash
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-02-24 DOI: 10.1016/j.matlet.2025.138288
Prakash Kumar , Suresh Pratap , Binay Kumar
{"title":"Effect of temperature on the wear properties of the novel hybrid aluminum composite reinforced with ZrB2 and fly ash","authors":"Prakash Kumar ,&nbsp;Suresh Pratap ,&nbsp;Binay Kumar","doi":"10.1016/j.matlet.2025.138288","DOIUrl":"10.1016/j.matlet.2025.138288","url":null,"abstract":"<div><div>Wear is important in aluminum-manufactured automotive, aerospace, and structural components. In this work, the effect of high temperature on the wear resistance of the hybrid aluminum composite was characterized using FESEM, an optical micrograph, and a profilometer. A linear reciprocating wear test using a ball on a flat setup has been carried out to study the wear properties of the fabricated hybrid composite material and alloy. The wear rate of the hybrid composite at 100 °C shows a promising wear rate (0.0034 mm<sup>3</sup>/m) compared to room temperature (0.0038 mm<sup>3</sup>/m) and at 50 °C (0.0035 mm<sup>3</sup>/m). Further on increasing the temperature to 200 °C, a rapid increment in the wear rate is noticed.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"387 ","pages":"Article 138288"},"PeriodicalIF":2.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487202","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}
引用次数: 0
Fabrication of high-thermal-conductivity and low-dielectric boron Nitride/Quartz Fiber/Epoxy composites
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-02-23 DOI: 10.1016/j.matlet.2025.138284
Kunlun Zhao , Yuwei Liu , Ruoyu Huang , Xing Guo , Mingyuan Lin , Dafang Zhao , Xue-ao Zhang
{"title":"Fabrication of high-thermal-conductivity and low-dielectric boron Nitride/Quartz Fiber/Epoxy composites","authors":"Kunlun Zhao ,&nbsp;Yuwei Liu ,&nbsp;Ruoyu Huang ,&nbsp;Xing Guo ,&nbsp;Mingyuan Lin ,&nbsp;Dafang Zhao ,&nbsp;Xue-ao Zhang","doi":"10.1016/j.matlet.2025.138284","DOIUrl":"10.1016/j.matlet.2025.138284","url":null,"abstract":"<div><div>This study developed a high-thermal-conductivity, low-dielectric composite material by incorporating hexagonal boron nitride (BN) into quartz fiber-reinforced epoxy resin and optimizing the autoclave-molding for BN alignment, thereby significantly enhancing the material’s thermal conductivity. Experimental results demonstrated that the ordered arrangement of BN platelets within the layered structure effectively constructed efficient thermal conduction pathways. When 30 wt% BN platelets were introduced into the resin, the in-plane and through-plane thermal conductivities of the composite reached 4.20 W·m<sup>-</sup><sup>1</sup>·K<sup>-</sup><sup>1</sup> and 1.26 W·m<sup>-1</sup>·K<sup>-</sup><sup>1</sup>, respectively. Additionally, the effects of BN content on the mechanical and dielectric properties of the composite were investigated. This study provides valuable theoretical insights and process guidance for designing and fabricating high-thermal-conductivity and low-dielectric composites for thermal management applications in electric vehicles.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"388 ","pages":"Article 138284"},"PeriodicalIF":2.7,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487227","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}
引用次数: 0
Effect of Ti on microstructure and mechanical properties of high strength AA6xxx alloy
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-02-22 DOI: 10.1016/j.matlet.2025.138280
P. Shurkin , G. Scamans , T. Subroto , N. Barekar , F. Sadeghi , J.L. Nebreda , C. Barbatti
{"title":"Effect of Ti on microstructure and mechanical properties of high strength AA6xxx alloy","authors":"P. Shurkin ,&nbsp;G. Scamans ,&nbsp;T. Subroto ,&nbsp;N. Barekar ,&nbsp;F. Sadeghi ,&nbsp;J.L. Nebreda ,&nbsp;C. Barbatti","doi":"10.1016/j.matlet.2025.138280","DOIUrl":"10.1016/j.matlet.2025.138280","url":null,"abstract":"<div><div>Titanium is common in recycled aluminium alloys but limited in high-strength variants containing Zr and Cr. This study shows that Ti increases the liquidus temperature and promotes the formation of Al<sub>3</sub>Ti-(Al,Si)<sub>3</sub>(Ti,Zr) core–shell intermetallics. Zr and Si absorption reduces hardness and enhances the plasticity of Al<sub>3</sub>Ti intermetallic. Ti addition improved extruded profile bending performance due to a reduced peripheral coarse grain depth, while cracks propagated via voids at Fe-intermetallics rather than Ti-intermetallics.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"387 ","pages":"Article 138280"},"PeriodicalIF":2.7,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Utilizing hydrogenation process for high efficient recovery of rare earth elements from spent NdFeB magnets
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-02-22 DOI: 10.1016/j.matlet.2025.138282
Bosung Seo, Hyung-Ki Park, Taewook Na, Chang Soo Park, Kwangsuk Park
{"title":"Utilizing hydrogenation process for high efficient recovery of rare earth elements from spent NdFeB magnets","authors":"Bosung Seo,&nbsp;Hyung-Ki Park,&nbsp;Taewook Na,&nbsp;Chang Soo Park,&nbsp;Kwangsuk Park","doi":"10.1016/j.matlet.2025.138282","DOIUrl":"10.1016/j.matlet.2025.138282","url":null,"abstract":"<div><div>Hydrogenation process was applied as a method to increase leaching rate of spent NdFeB magnets. As the leaching follows shrinking-core model, diffusion of the leaching agent was one of critical factors. While thermal oxidation was mainly used for the phase control, the hydrogenation process could provide new option for manipulating microstructure, especially on the Nd<sub>2</sub>O<sub>3</sub> size. The disproportionated characteristics of the NdFeB magnet as a result of the hydrogenation process over 800 °C influenced the final microstructure after the subsequent thermal oxidation. The dissociated phases and pre-grown Nd hydride resulted in the growth of the Nd<sub>2</sub>O<sub>3</sub> particles. This microstructural change increased the leaching rate, achieving 100 % Nd leaching efficiency within 1 hr. This increase in the leaching rate seemed to be ascribed to the increased Nd<sub>2</sub>O<sub>3</sub> particle size. The selective leaching followed the diffusion-controlled model, where the diffusion of the leaching agent determined the leaching rate. Based on Knudsen diffusion, diffusion rate was proportional to the pore size (Nd<sub>2</sub>O<sub>3</sub> particle size) so that the highest leaching rate was achieved for H1000 which had the biggest Nd oxide particle.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"387 ","pages":"Article 138282"},"PeriodicalIF":2.7,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480572","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}
引用次数: 0
Acoustic performance optimization with finite element analysis of frequency-specific behavior of attenuators for noise reduction applications
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-02-22 DOI: 10.1016/j.matlet.2025.138281
Shoaib Irfan , Hilal Khan , Muhammad Ali Saqib , Zamil Bin Zahid
{"title":"Acoustic performance optimization with finite element analysis of frequency-specific behavior of attenuators for noise reduction applications","authors":"Shoaib Irfan ,&nbsp;Hilal Khan ,&nbsp;Muhammad Ali Saqib ,&nbsp;Zamil Bin Zahid","doi":"10.1016/j.matlet.2025.138281","DOIUrl":"10.1016/j.matlet.2025.138281","url":null,"abstract":"<div><div>This study investigates the frequency-specific performance of modelled acoustic attenuator using finite element methods (FEM) to model transmission loss (TL) and insertion loss (IL). Addressing gaps in mid-frequency optimization and computational efficiency, the Helmholtz equation was parameterized under realistic boundary conditions, with iterative mesh refinement enhancing accuracy. The attenuator achieved a peak TL of 26.6 dB at 630 Hz and IL of 9.3 dB at 1260 Hz, demonstrating high efficiency in mid- to high-frequency noise suppression. The findings advance scalable design methodologies, offering valuable insights into frequency-dependent acoustic behavior and practical solutions for diverse noise control applications.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"387 ","pages":"Article 138281"},"PeriodicalIF":2.7,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480637","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}
引用次数: 0
Biodegradable PLA/TPU blends with improved mechanical properties
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-02-22 DOI: 10.1016/j.matlet.2025.138205
Lan Zhang, Zhicheng Ye, Pengliang Hou
{"title":"Biodegradable PLA/TPU blends with improved mechanical properties","authors":"Lan Zhang,&nbsp;Zhicheng Ye,&nbsp;Pengliang Hou","doi":"10.1016/j.matlet.2025.138205","DOIUrl":"10.1016/j.matlet.2025.138205","url":null,"abstract":"<div><div>In this paper, a polylactic acid (PLA)/thermoplastic polyurethane (TPU) composite material was developed to improve the tensile strength and flexibility of PLA, thereby improving its overall mechanical properties. SEM and FTIR analyses confirmed that the blending PLA with TPU did not induce chemical reactions. Results indicated that the modulus of the PLA<sub>9/1</sub> composite increased by 17% compared to PLA<sub>10/0</sub>, demonstrating TPU effectiveness in enhancing flexibility. Additionally, an optimal TPU amount acts as a particle reinforcement, improving the mechanical properties and expanding application potential of PLA.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"387 ","pages":"Article 138205"},"PeriodicalIF":2.7,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471361","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}
引用次数: 0
Eco-friendly synthesis trend of Sn-V bimetallic nanoparticles and its potential biological applications
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-02-21 DOI: 10.1016/j.matlet.2025.138277
Ramya Raman , Sudhahar Sakkarapani , Bhaskaran Arumugam
{"title":"Eco-friendly synthesis trend of Sn-V bimetallic nanoparticles and its potential biological applications","authors":"Ramya Raman ,&nbsp;Sudhahar Sakkarapani ,&nbsp;Bhaskaran Arumugam","doi":"10.1016/j.matlet.2025.138277","DOIUrl":"10.1016/j.matlet.2025.138277","url":null,"abstract":"<div><div>This investigation outlines the eco-conscious fabrication of tin-vanadium bimetallic nanoparticles (Sn-V BNPs) using <em>Piper longum</em> extract. The crystalline nature of Sn-V BNPs is confirmed by XRD data, with an average crystalline size of 20 nm. Morphological characterization by HRTEM confirms the irregular, polycrystalline structure of the nanoparticles, with an average size of approximately 25–50 nm. The Sn-V BNPs exhibit enhanced anti-inflammatory activity, achieving a maximum inhibition of 91.7 %. They demonstrate potent antidiabetic activity, with an IC<sub>50</sub> of 52 µg/mL in alpha-amylase inhibition. The nanoparticles also show remarkable cytotoxicity activity, with an IC<sub>50</sub> value of 57 µg/mL against MCF-7 lung cancer cells. These findings highlight the promising potential of green-synthesized bimetallic nanoparticles as multifunctional therapeutic agents.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"387 ","pages":"Article 138277"},"PeriodicalIF":2.7,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464225","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}
引用次数: 0
Lithium selective deposition on heterogeneous magnesium grains stabilized lithium metal batteries
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-02-21 DOI: 10.1016/j.matlet.2025.138278
Shipeng Zhang , Yu Tang , Xiaorong Lv , Li Gao , Bingxin Liu , Peng Zhang
{"title":"Lithium selective deposition on heterogeneous magnesium grains stabilized lithium metal batteries","authors":"Shipeng Zhang ,&nbsp;Yu Tang ,&nbsp;Xiaorong Lv ,&nbsp;Li Gao ,&nbsp;Bingxin Liu ,&nbsp;Peng Zhang","doi":"10.1016/j.matlet.2025.138278","DOIUrl":"10.1016/j.matlet.2025.138278","url":null,"abstract":"<div><div>To suppress the uncontrolled growth of lithium dendrites on the anode side of lithium metal batteries, a functional anode current collector, modified with magnesium (Mg) metal seeds via electron beam-induced deposition (EBID), was developed to enhance lithium deposition behavior. This fine Mg grain optimizes the large grain structure and rough surface of the traditional copper foil, and avoids the uneven nucleation and deposition of lithium caused by the tip effect and lithiophibicity. As heterogeneous nucleation sites, these Mg grains exhibit superior lithiophilicity. The findings indicate that the modified anode current collector effectively restrains the growth of lithium dendrites at a deposition capacity of 3 mAh cm<sup>−2</sup>. Even when the symmetric cell is operated at 10 °C, its cycle life surpasses 420 h at a current density of 0.5 mA cm<sup>−2</sup>, demonstrating significant potential for lithium metal anodes.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"387 ","pages":"Article 138278"},"PeriodicalIF":2.7,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480575","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}
引用次数: 0
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