Journal of Materials Research and Technology最新文献

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Kevlar-reinforced hydrogel composites with enhanced puncture resistance, strain-sensing, and anti-freezing performance for flexible personal protective equipment 凯夫拉增强水凝胶复合材料增强抗穿刺,应变传感,抗冻性能灵活的个人防护装备
Journal of Materials Research and Technology Pub Date : 2025-10-01 DOI: 10.1016/j.jmrt.2025.09.263
Xue’er Li, Bei Wu, Tianwei Liu, Meiyu Chen, Runjun Sun, Qiushi Wang
{"title":"Kevlar-reinforced hydrogel composites with enhanced puncture resistance, strain-sensing, and anti-freezing performance for flexible personal protective equipment","authors":"Xue’er Li, Bei Wu, Tianwei Liu, Meiyu Chen, Runjun Sun, Qiushi Wang","doi":"10.1016/j.jmrt.2025.09.263","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.09.263","url":null,"abstract":"A multifunctional composite that can withstand puncture threats and endure extreme environmental conditions is pivotal for next-generation personal protective equipment (PPE). Herein, we report a flexible Kevlar-reinforced hydrogel composite that simultaneously exhibits outstanding puncture resistance, strain-sensing functionality, and anti-freezing performance. The PVA hydrogel matrix, structurally enhanced via immersion in Na 3 Cit and Al 2 (SO 4 ) 3 dual-salt solution, demonstrates excellent mechanical robustness and strain-resistance responsiveness across both ambient and subzero environments. Integrated with Kevlar fabric, the flexible composite achieves a maximum quasi-static and dynamic puncture force of 69.55 N and 318.70 N, representing 4.07-fold and 3.09-fold improvements, respectively, over the neat fabric, and absorbs 94.58% of the impact energy from a drop hammer. Notably, the composite maintains superior puncture resistance (maximum quasi-static and dynamic puncture force of 55.97 N and 265.58 N) and flexibility (bending stiffness of 7.78 mN·cm) at -15 °C. Its strain-sensing capabilities remain sensitive and stable, offering excellent linearity, a broad detection range, and consistent performance over 500 cycles at both 25 °C and -15 °C, enabling real-time, reliable monitoring of human motion across diverse environmental conditions. This work offers a scalable and practical approach toward fabricating high-performance, all-weather flexible PPE for protective and wearable sensing applications in harsh environments.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"39 1","pages":"2667-2676"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147918809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new nickel-adenine composite stripper layer for preparation of extremely thin copper foils 一种用于制备极薄铜箔的镍-腺嘌呤复合剥离层
Journal of Materials Research and Technology Pub Date : 2025-09-25 DOI: 10.1016/j.jmrt.2025.09.235
Guangmao Yin, Junqing Han, Yuxi Zhu, Xinxin Song, Kexing Song, Yuying Wu
{"title":"A new nickel-adenine composite stripper layer for preparation of extremely thin copper foils","authors":"Guangmao Yin, Junqing Han, Yuxi Zhu, Xinxin Song, Kexing Song, Yuying Wu","doi":"10.1016/j.jmrt.2025.09.235","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.09.235","url":null,"abstract":"Extremely thin copper foils are critical for high-speed and high-frequency electronic devices, as they significantly reduce signal transmission losses and minimize heating effects. These foils are typically fabricated by depositing onto a carrier foil coated with a stripper layer, where the design of the stripper layer is pivotal. Although benzotriazole coating is a technically mature organic stripping layer, its potential carcinogenicity and environmental persistence may pose long-term risks to human health and the ecological environment, instead of this, a novel composite stripper layer was developed in this work, which comprises a nickel metallic interlayer and an adenine-based organic layer for extremely thin copper foil fabrication. The peel strength of the resulting copper foils (thicknesses: 3.2 μm, 6.5 μm, and 9.7 μm) was evaluated under a constant current density of 20 A/dm 2 , yielding values of 0.012 N/mm, 0.010 N/mm, and 0.009 N/mm, respectively. Variations in current density (8.1 A/dm 2 , 15 A/dm 2 , and 20 A/dm 2 ) further revealed peel strengths of 0.004 N/mm, 0.010 N/mm, and 0.012 N/mm, indicating that the peeling process is relatively easy. Combined theoretical and experimental analyses elucidated the formation mechanism of the composite stripper layer, demonstrating that the adenine-based organic layer adsorbs onto the nickel surface via N–Ni bonding. This mechanism further offers insights into the design of composite peel-off layers, enabling the preparation of extremely thin copper foils. Such a process holds significant potential for the extensible fabrication of conductive patterns in radio frequency identification (RFID) circuits, flexible printed circuits (FPCs), and other advanced electronics applications.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"39 1","pages":"2105-2117"},"PeriodicalIF":0.0,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147880731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Build orientation effects on properties of SLS-printed PEEK for bone implants: Surface-physical-mechanical characteristics and in vitro cellular responses 构建取向对sls打印PEEK骨植入物性能的影响:表面物理力学特性和体外细胞反应
Journal of Materials Research and Technology Pub Date : 2025-09-24 DOI: 10.1016/j.jmrt.2025.09.169
Yingjie Liu, Feng Zhao, Yabo Zhao, Tianyu Shu, Shuyuan Liu, Sen Wang, Yanwen Su, Changning Sun, Swastina Nath Varma, Chaozong Liu, Dichen Li, Ling Wang
{"title":"Build orientation effects on properties of SLS-printed PEEK for bone implants: Surface-physical-mechanical characteristics and in vitro cellular responses","authors":"Yingjie Liu, Feng Zhao, Yabo Zhao, Tianyu Shu, Shuyuan Liu, Sen Wang, Yanwen Su, Changning Sun, Swastina Nath Varma, Chaozong Liu, Dichen Li, Ling Wang","doi":"10.1016/j.jmrt.2025.09.169","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.09.169","url":null,"abstract":"Selective laser sintering (SLS) technology has been increasingly utilized for polyetheretherketone (PEEK) prostheses fabrication due to its high design freedom and manufacturing precision. However, the effects of build orientation—a fundamental processing parameter—on the multifaceted properties of SLS-printed PEEK components remain underexplored. This study systematically investigates PEEK components fabricated at build orientations from 0° to 80°. We found that build orientation dictated microstructural integrity, leading to a non-linear surface roughness trend (Ra peaking at 21.5 μm for the 30° orientation) and pronounced mechanical anisotropy, evidenced by a significant reduction in flexural strength at high orientations. In vitro, surface roughness induced by build orientation had a discernible but transient effect on early-stage cell proliferation. However, over long-term culture, both the high- and low-roughness surfaces demonstrated favorable cytocompatibility by supporting mature focal adhesions and equivalent cell growth. Crucially, by using substrate angulation to simulate the gravitational challenges implants encounter in vivo, we discovered that this extrinsic biomechanical force was a more dominant factor in modulating cell viability, with a critical sensitivity identified in the 30°–60° angulation range. In conclusion, this work highlights the significant role of build orientation in modulating the final properties of SLS-fabricated PEEK, providing guidance for both printing process design and future clinical application.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"39 1","pages":"1915-1926"},"PeriodicalIF":0.0,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147886210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Fabrication, microstructure, and properties of Cu nanoparticles-loaded Ti3C2Tx MXene nanosheets-reinforced Cu matrix composites Cu纳米颗粒负载Ti3C2Tx MXene纳米片增强Cu基复合材料的制备、微观结构和性能
Journal of Materials Research and Technology Pub Date : 2025-08-29 DOI: 10.1016/j.jmrt.2025.08.270
Xuan Gong, Haohao Zou, H.Q. Ye, Weiguang Zhu, Ying Han, Zhenxin Duan, Suqiu Jia, Xu Ran
{"title":"Fabrication, microstructure, and properties of Cu nanoparticles-loaded Ti3C2Tx MXene nanosheets-reinforced Cu matrix composites","authors":"Xuan Gong, Haohao Zou, H.Q. Ye, Weiguang Zhu, Ying Han, Zhenxin Duan, Suqiu Jia, Xu Ran","doi":"10.1016/j.jmrt.2025.08.270","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.08.270","url":null,"abstract":"","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"38 1","pages":"4624-4637"},"PeriodicalIF":0.0,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Enhanced wear and corrosion resistance of CeO2/WSAR-sealed TiN coatings for extreme environments 极端环境下CeO2/ wsar密封TiN涂层的耐磨损性和耐腐蚀性增强
Journal of Materials Research and Technology Pub Date : 2025-08-28 DOI: 10.1016/j.jmrt.2025.08.256
Xiangru Shi, Qun Li, Zhen Zhou, Xin Zhang, Jiangbo Cheng, Jian Chen
{"title":"Enhanced wear and corrosion resistance of CeO2/WSAR-sealed TiN coatings for extreme environments","authors":"Xiangru Shi, Qun Li, Zhen Zhou, Xin Zhang, Jiangbo Cheng, Jian Chen","doi":"10.1016/j.jmrt.2025.08.256","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.08.256","url":null,"abstract":"","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"38 1","pages":"3866-3878"},"PeriodicalIF":0.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of bionic microtexture geometry on the tribological performance of hydrophobic surfaces 仿生微织构几何对疏水表面摩擦学性能的影响
Journal of Materials Research and Technology Pub Date : 2025-08-26 DOI: 10.1016/j.jmrt.2025.08.206
Junyan Wang, Jianxin Deng, Shoufan Rong, Zhihui Zhang, Yichen Bao
{"title":"Effect of bionic microtexture geometry on the tribological performance of hydrophobic surfaces","authors":"Junyan Wang, Jianxin Deng, Shoufan Rong, Zhihui Zhang, Yichen Bao","doi":"10.1016/j.jmrt.2025.08.206","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.08.206","url":null,"abstract":"This study intergrates experimental and theoretical approaches to explore the effect of bionic microtexture geometry on the tribological performance of hydrophobic surfaces. A theoretical model is established based on the extended Reynolds equation, and hydrophobic sandwich-like coatings with four types of bionic microtextures were fabricated using laser processing and electrohydrodynamic jet (EHDA) method. The mechanical durability and friction-wear characteristics of different samples were systematically investigated. The numerical results showed that the continuous dimple textured surface deposited with coatings (CTS-1) exhibited the largest slip velocity and the lowest friction. Sample CTS-2 exhibited best load bearing capacity with maximum surface pressure. Experimental results were consistent with the theoretical model, sample CTS-1 exhibited the lowest friction coefficient and CTS-2 had the best anti-wear performance. Compared with PS sample, the average friction coefficient of CTS-1 was reduced by 14.05 % and the wear rate of CTS-3 decreased by 19.66 %. This can be attributed to the improved slip effect of CTS-1 and higher load bearing capacity and lower cavitation of lubrication film on CTS-2. Furthermore, sample CTS-1 exhibited outstanding properties in durability tests and long-term sliding experiments, confirming the effective role of the continuous hexagonal dimple microtextures in protecting the hydrophobic nanocoatings during abrasion.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"38 1","pages":"4234-4247"},"PeriodicalIF":0.0,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An improvement strategy for titanium-based anodes: RGO-CNTs and TNTs as performance enhancers 钛基阳极的改进策略:RGO-CNTs和tnt作为性能增强剂
Journal of Materials Research and Technology Pub Date : 2025-08-05 DOI: 10.1016/j.jmrt.2025.08.012
Minghang Gong, Yihang Cai, Dongwei Wang, Wu Lei, Yong Wang, Gongwang Cao, Yuwei Liu, Quanzhong Guo, Chuanyi Wang, Yang Li
{"title":"An improvement strategy for titanium-based anodes: RGO-CNTs and TNTs as performance enhancers","authors":"Minghang Gong, Yihang Cai, Dongwei Wang, Wu Lei, Yong Wang, Gongwang Cao, Yuwei Liu, Quanzhong Guo, Chuanyi Wang, Yang Li","doi":"10.1016/j.jmrt.2025.08.012","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.08.012","url":null,"abstract":"During marine navigation, ships inevitably encounter corrosion and biofouling from seawater, necessitating anodes with superior performance for impressed current cathodic protection of hulls. In this study, a hybrid material comprising reduced graphene oxide (RGO) and carboxylated multi-walled carbon nanotubes (CNTs), along with a TiO 2 nanotube arrays (TNTs) interlayer, was introduced into a metal oxide-coated electrode. The RGO-CNTs/RuO 2 -IrO 2 -SnO 2 /TNTs electrode was fabricated via thermal decomposition, and its surface morphology, electrocatalytic activity, practical chlorine evolution and antibacterial performance, as well as accelerated life, were systematically evaluated. The underlying mechanisms by which the hybrid material and interlayer enhance anode performance were analyzed. The results indicate that the electrode achieves a difference of 0.430 V between chlorine evolution potential (CEP) and oxygen evolution potential (OEP), with an accelerated life of 232 h. It effectively exerts a stimulatory effect on microorganisms, thereby achieving superior biofouling resistance. This enhancement is likely attributable to the synergistic effects of RGO-CNTs and TNTs, including barrier effects, labyrinth effect, mechanical reinforcement, and optimized electron transport, which collectively improve the electrocatalytic activity and stability of the anode. This study provides valuable theoretical insights for enhancing the activity and stability of coated electrodes, holding significant promise for applications in marine corrosion protection. • The RGO-CNTs/RuO 2 -IrO 2 -SnO 2 /TNTs anode has been synthesized. • RGO-CNTs and TNTs extend the accelerated life to 232 h. • RGO-CNTs and TNTs improve the difference between CEP and OEP to 0.430 V. • RGO-CNTs and TNTs enhance coating stability and optimize electron transfer.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"38 1","pages":"1675-1686"},"PeriodicalIF":0.0,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147895104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Phase-controlled oxidation modification for simultaneous recovery of iron and silicon from copper slag: Mechanism and process optimization 从铜渣中同时回收铁和硅的相控氧化改性:机理和工艺优化
Journal of Materials Research and Technology Pub Date : 2025-07-01 DOI: 10.1016/j.jmrt.2025.07.078
Sihan Wang, Guishuai Wang, Zhanwei He, Xudong Mao, Mangmang Gao, Kuo‐Chih Chou
{"title":"Phase-controlled oxidation modification for simultaneous recovery of iron and silicon from copper slag: Mechanism and process optimization","authors":"Sihan Wang, Guishuai Wang, Zhanwei He, Xudong Mao, Mangmang Gao, Kuo‐Chih Chou","doi":"10.1016/j.jmrt.2025.07.078","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.07.078","url":null,"abstract":"With the increasing depletion of mineral resources and growing environmental pressures, the resource utilization of industrial solid waste has become crucial for sustainable development. Aiming at copper slag, a typical metallurgical solid waste, a phase-controlled oxidation modification method using CaO-MgO as modifier under high temperature was proposed in this study, which realized the efficient separation and recovery of iron and silicon resources. Through the systematic investigation of key parameters including oxidation temperature, basicity, and holding time, combined with characterization techniques such as XRF, XRD, SEM-EDS, and XPS, the phase transformation mechanism during the oxidation modification process was elucidated. The results showed that the basicity determined the presence form of iron and silicon, the temperature regulated the ion diffusion conditions, and the holding time affected the crystalline integrity of (Mg,Fe 2+ )Fe 2 O 4 . Under optimal conditions (oxidation temperature: 1300 °C, basicity: 2.0, holding time: 60 min), the iron element was effectively enriched to (Mg,Fe 2+ )Fe 2 O 4 and silicon element was converted to Ca 2 SiO 4 , forming distinct phase boundaries favorable for separation. After magnetic separation, the iron recovery rate was 85.83%, the total iron of the concentrate was 46.18%, and the content of Si, P, and S was reduced. The concentrate is suitable for direct recycling as ironmaking raw material in steel plants, and the Ca 2 SiO 4 -rich tailings can be utilized as construction materials to achieve synergistic \"waste reduction-resource recovery\" treatment of copper slag. This study provides new insights for high value utilization of metallurgical wastes, while offering practical solutions to alleviate resource pressures and environmental risks.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"37 1","pages":"4708-4716"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147891388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Design low elastic modulus Ti–Zr–Nb-Hf-Cu multi-principal element alloys for dental application 设计低弹性模量牙科用Ti-Zr-Nb-Hf-Cu多元素合金
Journal of Materials Research and Technology Pub Date : 2025-07-01 DOI: 10.1016/j.jmrt.2025.06.205
Zhichao Zhao, Bo Liu, Donghui Wang, Jing Jiang, Zhen Lu, Lei Yang
{"title":"Design low elastic modulus Ti–Zr–Nb-Hf-Cu multi-principal element alloys for dental application","authors":"Zhichao Zhao, Bo Liu, Donghui Wang, Jing Jiang, Zhen Lu, Lei Yang","doi":"10.1016/j.jmrt.2025.06.205","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.06.205","url":null,"abstract":"Titanium and titanium alloys have been widely used as dental implant materials due to their excellent strength, stability, and biocompatibility. However, in clinical practice, the relatively high modulus of elasticity of titanium implants usually triggers the phenomenon of stress shielding, accompanied by the risk of post-implantation infection, which hinders the regeneration and reconstruction of bone tissue and may ultimately lead to implant failure. Multi-principal element alloys (MPEAs) offer enhanced control over the modulus due to their broad compositional variability. Herein, three MPEAs with the composition (Ti x Zr x NbHf) 95 Cu 5 (x = 2, 3, 4) were developed in this paper, which exhibits a lower modulus of elasticity contrast with TC4, and the addition of copper (Cu) is effective in suppressing post-implantation infection. These three MPEAs are primarily composed of body-centered cubic (BCC) structures and demonstrate excellent mechanical properties, including compressive plastic strain exceeding 40%, yield strength up to 840 MPa, and a minimum elastic modulus of just 69 GPa, which is similar to that of human bone. Furthermore, the low elastic modulus MPEAs exhibit outstanding corrosion resistance in simulated body fluids, enhancing their durability under physiological conditions. In vitro cellular experiments confirm their excellent cytocompatibility and ability to promote angiogenesis, while in vitro bacterial studies demonstrate antimicrobial efficacy, with a rate exceeding the specified 90%. In vivo experiments also further validated the osseointegration capacity. Incorporating copper into MPEAs with BCC structures presents a promising avenue for developing advanced dental implant materials.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"37 1","pages":"2977-2988"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147892218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Effect of Co doping on hot corrosion behavior of aluminide coating on Mo-rich single-crystal superalloy exposed to Na2SO4+NaVO3 at 750 °C and 900 °C Co掺杂对富mo单晶高温合金铝化物涂层750℃和900℃Na2SO4+NaVO3热腐蚀行为的影响
Journal of Materials Research and Technology Pub Date : 2025-07-01 DOI: 10.1016/j.jmrt.2025.07.013
X.Y. Chen, Hui Zhang, J. Kang, H. Diessel Duan, Yanling Pei, Shengkai Gong, S.S. Li
{"title":"Effect of Co doping on hot corrosion behavior of aluminide coating on Mo-rich single-crystal superalloy exposed to Na2SO4+NaVO3 at 750 °C and 900 °C","authors":"X.Y. Chen, Hui Zhang, J. Kang, H. Diessel Duan, Yanling Pei, Shengkai Gong, S.S. Li","doi":"10.1016/j.jmrt.2025.07.013","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.07.013","url":null,"abstract":"This study presents a comparative investigation on the hot corrosion behavior of Mo-rich single-crystal superalloys with simple aluminide coatings and Co-modified aluminide coatings under molten salt corrosion by 75 wt. % Na 2 SO 4 + 25 wt. % NaVO 3 mixture at 750°C and 900°C. The results reveal that Co doping significantly enhances the resistance of aluminide coatings to combined sulfur-vanadium hot corrosion at both low and high temperatures. During hot corrosion, the Co-modified coating develops a multilayered oxide structure consisting of CoO/CoAl 2 O 4 /Al 2 O 3 . This unique microstructure formation can be attributed to the synergistic effects of Co-induced suppression of outward Al diffusion in the coating and the dissolution of the outer Al 2 O 3 scale by VO 3 - ions. Furthermore, the presence of CoO effectively reduces the inward penetration tendency of VO 3 - . At the elevated temperature of 900°C, Co addition demonstrates additional benefits by inhibiting the outward diffusion of Mo from the substrate, promoting its solid solution stabilization in the interdiffusion zone. This mechanism effectively suppresses MoO 3 dissolution into the molten salt, thereby preventing acidification-induced acceleration of hot corrosion propagation.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"37 1","pages":"4248-4264"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147905083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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