Journal of Materials Engineering and Performance最新文献

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Microstructure and High-Temperature Oxidation Properties of Microarc Oxidation Composite Coatings Based on Ti6Al4V: Effect of Nano-Tungsten Carbide Ti6Al4V微弧氧化复合涂层的显微组织与高温氧化性能:纳米碳化钨的影响
IF 2 4区 材料科学
Journal of Materials Engineering and Performance Pub Date : 2025-12-16 DOI: 10.1007/s11665-025-12579-3
Yupeng Guo, Hui Jiang, Zhixiang Tang, Xin Li, Yadong Zhao, Yubo Xing, Hang Zhou, Xiaofeng Lu, Xiaolei Zhu
{"title":"Microstructure and High-Temperature Oxidation Properties of Microarc Oxidation Composite Coatings Based on Ti6Al4V: Effect of Nano-Tungsten Carbide","authors":"Yupeng Guo,&nbsp;Hui Jiang,&nbsp;Zhixiang Tang,&nbsp;Xin Li,&nbsp;Yadong Zhao,&nbsp;Yubo Xing,&nbsp;Hang Zhou,&nbsp;Xiaofeng Lu,&nbsp;Xiaolei Zhu","doi":"10.1007/s11665-025-12579-3","DOIUrl":"10.1007/s11665-025-12579-3","url":null,"abstract":"<div><p>Nano-Tungsten carbide was added to the composite coatings via microarc oxidation technology for high-temperature applications in aerospace. With the increase of nano-WC concentration, the surface micropore diameter increases, and micropore porosity decreases from 11.3 to 9.6%. The thickness of the coatings increased from 15.08 to 25.13 μm. The coatings mainly comprised anatase-TiO<sub>2</sub>, rutile-TiO<sub>2</sub>, Al<sub>2</sub>TiO<sub>5,</sub> and WC. W existed in WC, and a trace amount of (Ti<sub>0.8</sub>, W<sub>0.2</sub>) C, W<sub><i>x</i></sub>C<sub><i>y</i></sub>. The microhardness of the coatings increased from 423 to 728 HV. The coatings’ oxidation weight gains at 750 °C decreased from 2.6012 to 1.5385 mg/cm<sup>2</sup>. The microcracks on the coatings’ surface decreased gradually. The microcrack, which originates from the micropores, grows irregularly under the high-temperature oxidation. The nano-WC effectively hinders the high-temperature oxidation process and improves the high-temperature performance of the coatings.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 14","pages":"13295 - 13307"},"PeriodicalIF":2.0,"publicationDate":"2025-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147682804","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
Impact of DC Power on the Nonlinear Optical Characteristics of Deposited Cd2SnO4 Thin Films 直流电源对沉积Cd2SnO4薄膜非线性光学特性的影响
IF 2 4区 材料科学
Journal of Materials Engineering and Performance Pub Date : 2025-12-15 DOI: 10.1007/s11665-025-12778-y
Sara A. Mohamed, M. M. Abd El-Raheem, H. A. Mohamed, M. A. Awad
{"title":"Impact of DC Power on the Nonlinear Optical Characteristics of Deposited Cd2SnO4 Thin Films","authors":"Sara A. Mohamed,&nbsp;M. M. Abd El-Raheem,&nbsp;H. A. Mohamed,&nbsp;M. A. Awad","doi":"10.1007/s11665-025-12778-y","DOIUrl":"10.1007/s11665-025-12778-y","url":null,"abstract":"<div><p>Cadmium tin oxide, Cd<sub>2</sub>SnO<sub>4</sub>, thin films were prepared using sputtering with a DC magnetron. A set of films was prepared under different DC sputtering powers (10, 25, 50, 75, and 100 watt). The structural features of these films were investigated using x-ray diffraction, and the optical characteristics of the produced films were characterized using a double-beam spectrophotometer. In the spectral region (250-2500 nm), both the transmittance and reflectance of Cd<sub>2</sub>SnO<sub>4</sub> thin films were determined. It was found that a high transmittance of 80% was obtained in the visible region and increased with increasing DC sputtering power. Furthermore, obvious absorbance increased in the range 750-2500 nm for films deposited at DC powers of 10, 25, and 50 watt. The band gap increased from 2.72 to 3.77 eV with increasing sputtering power as well as carrier density. The refractive index showed a normal dispersion. In addition, the behaviors of the optical conductivity <i>σ</i><sub><i>opt</i></sub>, dielectric constant <span>(varepsilon)</span>, volume energy loss (VELF) and surface energy loss (SELF), and nonlinear optical characteristics were studied.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 16","pages":"15780 - 15789"},"PeriodicalIF":2.0,"publicationDate":"2025-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147755989","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
Optimizing Fe-Cr-Al Alloy: Microstructure Insights and Mechanical Performance at Different Annealing Temperatures 优化Fe-Cr-Al合金:不同退火温度下的微观结构和力学性能
IF 2 4区 材料科学
Journal of Materials Engineering and Performance Pub Date : 2025-12-15 DOI: 10.1007/s11665-025-12947-z
Yangli Liu, Yu Zhang, Chengyue Yu, Chuhan Zhang, Zhu Cao, Wang Li, Jingyuan Li
{"title":"Optimizing Fe-Cr-Al Alloy: Microstructure Insights and Mechanical Performance at Different Annealing Temperatures","authors":"Yangli Liu,&nbsp;Yu Zhang,&nbsp;Chengyue Yu,&nbsp;Chuhan Zhang,&nbsp;Zhu Cao,&nbsp;Wang Li,&nbsp;Jingyuan Li","doi":"10.1007/s11665-025-12947-z","DOIUrl":"10.1007/s11665-025-12947-z","url":null,"abstract":"<div><p>To investigate the microstructural evolution of an Fe-Cr-Al alloy after annealing at different temperatures and its influence on impact and tensile properties, a hot-rolled Fe-Cr-Al alloy is selected for annealing treatments at 750, 800, 850, 900, 950 and 1050 °C for 15 mins, followed by microstructural characterization and mechanical properties testing. The results indicate that the Fe-Cr-Al alloy primarily consists of a ferritic matrix and composite AlN-SiC precipitates. Microstructures of the as-rolled sample and those annealed at 750 °C and 800 °C exhibit significant rolling deformation characteristics, including elongated grains along the rolling direction (RD), noticeable intra-granular orientation gradients and non-straight grain boundaries. When the annealing temperature increases to 850 °C, pronounced recrystallization occurs, resulting in the formation of uniform equiaxed grains. As the temperature further rises to 950 °C, recrystallization is essentially completed and the grains become fully equiaxed. Upon increasing the annealing temperature to 1050 °C, the equiaxed grains is coarsening further. The strength–ductility product of the Fe-Cr-Al alloy annealed at 850 °C (17,529.4 MPa·%) is 17.8% higher than that annealed at 950 °C (14,880.0 MPa·%), while its impact energy (130.46 J vs. 136.50 J) is only 4.6% lower. The main reason for this discrepancy is that tensile properties are predominantly governed by strengthening mechanisms, whereas impact toughness is more sensitive to crack propagation paths. Considering both strength–ductility balance and impact resistance, the optimal annealing temperature for the hot-rolled Fe-Cr-Al alloy is determined to be 850 °C.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 16","pages":"15653 - 15663"},"PeriodicalIF":2.0,"publicationDate":"2025-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147755993","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
Investigation of Deformation Suppression of Synchronous Water-Cooling-Assisted Laser Directed Energy Deposition 同步水冷辅助激光定向能沉积的变形抑制研究
IF 2 4区 材料科学
Journal of Materials Engineering and Performance Pub Date : 2025-12-13 DOI: 10.1007/s11665-025-12744-8
Fangyong Niu, Haoran Cheng, Lu Li, Yuanxi Huang, Jiali Gao, Qian Bai, Danlei Zhao, Guangyi Ma, Dongjiang Wu, Lei Zhao
{"title":"Investigation of Deformation Suppression of Synchronous Water-Cooling-Assisted Laser Directed Energy Deposition","authors":"Fangyong Niu,&nbsp;Haoran Cheng,&nbsp;Lu Li,&nbsp;Yuanxi Huang,&nbsp;Jiali Gao,&nbsp;Qian Bai,&nbsp;Danlei Zhao,&nbsp;Guangyi Ma,&nbsp;Dongjiang Wu,&nbsp;Lei Zhao","doi":"10.1007/s11665-025-12744-8","DOIUrl":"10.1007/s11665-025-12744-8","url":null,"abstract":"<div><p>Laser directed energy deposition (LDED) technology has great potential for the rapid manufacturing of large and complex metal components, but the severe stress and deformation problems greatly limit its development. In order to achieve low stress and small deformation, this paper investigates the inhibition effect of the synchronous water-cooling-assisted method on the residual stress and deformation and, based on the different distributions of the temperature field in the melt pool scale and the component scale, discusses the mechanism of the evolution of the full-cycle deformation, as well as the inhibition mechanism of the method. The results show that during the deposition process, a high temperature gradient at the melt pool scale generates a concentrated compressive stress zone in front of the melt pool, causing reverse deformation of components at the initial stage of deposition of each layer. Tensile stresses introduced behind the melt pool due to cooling contraction increase with the movement of the melt pool, which ultimately counteract the reverse deformation induced by the front compressive stress resulting in forward deformation. The temperature gradient at the melt pool scale leads to an oscillatory increase in the deformation of the components during the deposition process. During the cooling stage, the macroscopic temperature gradient at the component scale causes monotonic deformation. Synchronous water-cooling assistance reduces the extent of the melt pool and heat-affected zone, effectively eliminating the temperature difference at the component scale during the cooling and the associated monotonic deformation. With synchronous water-cooling assistance, the maximum residual stress of substrate decreases by 119.94 MPa, and the maximum deformation is reduced by 8.70%. This work presents an effective stress and deformation suppression strategy for LDED, elucidates its mechanism, and offers insights for future studies on deformation mitigation.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 16","pages":"15999 - 16021"},"PeriodicalIF":2.0,"publicationDate":"2025-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147755958","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
Heat Build-Up Effect on the Microstructure and Properties of Additive-Manufactured AlSi10Mg Parts 热积聚对增材制造AlSi10Mg零件组织和性能的影响
IF 2 4区 材料科学
Journal of Materials Engineering and Performance Pub Date : 2025-12-13 DOI: 10.1007/s11665-025-12916-6
Paola Leo, Gilda Renna, Andrea Amleto De Luca, Chiara Scaramuzzi
{"title":"Heat Build-Up Effect on the Microstructure and Properties of Additive-Manufactured AlSi10Mg Parts","authors":"Paola Leo,&nbsp;Gilda Renna,&nbsp;Andrea Amleto De Luca,&nbsp;Chiara Scaramuzzi","doi":"10.1007/s11665-025-12916-6","DOIUrl":"10.1007/s11665-025-12916-6","url":null,"abstract":"<div><p>This study investigates the effect of heat build-up, as a function of different building modes and energy input, on the microstructure and mechanical properties of Al-Si10-Mg parts processed by Selective Laser Melting (SLM). Three different volumetric energy densities (67 J/mm<sup>3</sup>, 70 J/mm<sup>3</sup> and 86 J/mm<sup>3</sup>) were applied for building samples. The building chamber was heated at 200 °C to reduce residual stress. The samples were processed in Horizontal (H) and Vertical (V) modes. The H and V samples were investigated using an Optical Microscope (OM), a Scanning Electron Microscope (SEM), x-ray diffraction (XRD), Vickers microhardness, and tensile tests. Moreover, the electrical conductivity (EC) of the samples was investigated<b>.</b> The amount, size, and morphology of the defects were also analyzed by Image J software. Different building modes significantly influenced the heat build-up, microstructure, and hardness at a set energy density. Vertical samples exhibited a coarser microstructure and reduced homogeneity along the growth direction (<i>z</i>-axis) compared to horizontal samples. V samples also showed significant variations in microstructure and hardness along the <i>z</i>-axis, whereas H samples maintained greater uniformity. Furthermore, the percentage of defects increased in V samples and decreased in H samples with increasing heat input. Finally, after tensile test, a misalignment in mechanical response for H and V modes has been observed at all the energy densities except the lowest one.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 9","pages":"8694 - 8705"},"PeriodicalIF":2.0,"publicationDate":"2025-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11665-025-12916-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147363345","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
Parametric Optimization of Multicomponent Laser Surface Alloying of AISI 316L Stainless Steel using Taguchi’s Grey Relational Analysis 基于田口灰色关联分析的aisi316l不锈钢多组分激光表面合金化参数优化
IF 2 4区 材料科学
Journal of Materials Engineering and Performance Pub Date : 2025-12-12 DOI: 10.1007/s11665-025-12533-3
Shree Krishna, Tapas Bera, Debjani Chakraborty, Indranil Manna, Jyotsna Dutta Majumdar
{"title":"Parametric Optimization of Multicomponent Laser Surface Alloying of AISI 316L Stainless Steel using Taguchi’s Grey Relational Analysis","authors":"Shree Krishna,&nbsp;Tapas Bera,&nbsp;Debjani Chakraborty,&nbsp;Indranil Manna,&nbsp;Jyotsna Dutta Majumdar","doi":"10.1007/s11665-025-12533-3","DOIUrl":"10.1007/s11665-025-12533-3","url":null,"abstract":"<div><p>This study concerns the optimization of process parameters for laser surface alloying (using a 6.6 kW continuous wave diode laser) of AISI 316L stainless steel with three distinct multicomponent systems: CoCrFeMnTi, CoCrFeMnTiC, and CoCrFeMnTiSi using Taguchi’s Grey Relational Analysis (GRA). Followed by LSA, a detailed study of microstructure, microhardness, Young’s modulus, elastic energy, plastic energy absorbed during nanoindentation, wear rate, and corrosion rate was undertaken. The ideal process parameters for LSA derived from the analysis were 1800 W laser power and 6 mm/s scan speed for CoCrFeMnTi, 2200 W laser power and 8 mm/s scan speed for CoCrFeMnTiC, and 2000 W laser power and 8 mm/s scan speed for CoCrFeMnTiSi. The study underscores the effectiveness of GRA in multi-response optimization and the critical role of alloying composition and laser parameters in tailoring surface integrity and multifunctional performance of laser surface alloyed AISI 316L stainless steel.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 13","pages":"12916 - 12927"},"PeriodicalIF":2.0,"publicationDate":"2025-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147667815","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
Integrated Optimization and Multiscale Characterization of AA2024-T351/MWCNTs Surface Composites via Friction Stir Processing AA2024-T351/MWCNTs表面复合材料搅拌摩擦综合优化及多尺度表征
IF 2 4区 材料科学
Journal of Materials Engineering and Performance Pub Date : 2025-12-12 DOI: 10.1007/s11665-025-12867-y
J. Murugesan, V. S. Senthil Kumar
{"title":"Integrated Optimization and Multiscale Characterization of AA2024-T351/MWCNTs Surface Composites via Friction Stir Processing","authors":"J. Murugesan,&nbsp;V. S. Senthil Kumar","doi":"10.1007/s11665-025-12867-y","DOIUrl":"10.1007/s11665-025-12867-y","url":null,"abstract":"<div><p>This study investigates the optimization of friction stir processing parameters to prepare the surface composites of AA2024-T351 alloy with MWCNTs. The process parameters, including 1000 rpm-1400 rpm spindle speed, 40-80 mm/min feed rate, and volume fraction of MWCNTs from 2% to 6%, were analyzed by the RSM technique by Box–Behnken Design (BBD). The estimated mechanical characteristics produced with optimal values of ultimate tensile strength of 585.7 MPa, a wear rate of 24.15 mm<sup>3</sup>/Nm, hardness of 172.36 HV and surface roughness of 0.151 μm were identified under specific experimental conditions of 1400 rpm, 60 mm/min feed rate, and 4% MWCNT content. Microstructural evaluation at these optimized process parameters showed the uniform distribution of the reinforcement MWCNTs in the aluminum matrix, with a refined grain size of ~ 3.81 µm. The analytical model displayed high consistency, supported by individual response desirability indices exceeding 0.90, indicating that each response closely achieved the optimization target. The combining effect of all responses exhibited a composite desirability of 0.95 and <i>R</i><sup>2</sup> values greater than 0.95 across all responses, which confirmed the accuracy of the model’s prediction. Overall, the optimization considerably improved both the mechanical behavior and the characterization of the fabricated surface composites.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 17","pages":"16821 - 16837"},"PeriodicalIF":2.0,"publicationDate":"2025-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829849","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
Influence of Print Orientation on 3D-Printed Dental Crowns: An Experimental Evaluation of Support Structures, Surface, and Dimensional Quality 打印方向对3d打印牙冠的影响:支持结构、表面和尺寸质量的实验评估
IF 2 4区 材料科学
Journal of Materials Engineering and Performance Pub Date : 2025-12-11 DOI: 10.1007/s11665-025-12701-5
Siva Bhaskar Akula, Akhtar Khan
{"title":"Influence of Print Orientation on 3D-Printed Dental Crowns: An Experimental Evaluation of Support Structures, Surface, and Dimensional Quality","authors":"Siva Bhaskar Akula,&nbsp;Akhtar Khan","doi":"10.1007/s11665-025-12701-5","DOIUrl":"10.1007/s11665-025-12701-5","url":null,"abstract":"<div><p>Print orientation in 3D printing plays a critical role in determining the quantity and placement of support structures, which can influence material usage, post-processing effort, and surface quality. In LCD-based additive manufacturing, slicer-generated supports are often excessive and suboptimal. This study investigates the effect of print orientation on support structure generation for 3D-printed dental crowns. A total of 49 print trials were conducted using seven distinct orientations on both the X and Y axes. The MARCOS (Measurement Alternatives and Ranking according to Compromise Solution) method, a multi-criteria decision-making (MCDM) technique, was applied to identify the optimal print orientation based on key parameters such as printing time, support quantity, material usage, and cost. Experimental validation confirmed that a 90° X-axis and 45° Y-axis orientation minimized support requirements, enabling successful crown fabrication using a single support structure. Surface roughness, mesiodistal width (MD), and buccolingual width (BL) of the printed crowns were also measured and compared with conventionally fabricated crowns produced via investment and centrifugal casting. Results demonstrated superior surface quality and comparable dimensional accuracy in the LCD-printed crowns, with minimal deviation from the commercial polished crowns. This study underscores the importance of build orientation optimization in enhancing print efficiency, reducing post-processing, and improving the quality of dental prosthetics. The findings offer valuable insights for advancing cost-effective and high-precision additive manufacturing in clinical dentistry.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 15","pages":"14793 - 14810"},"PeriodicalIF":2.0,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147727519","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
Impact of Concentrations of AlN Nanoparticles on Properties of Ni-P Coatings Synthesized by Electroless Process 纳米AlN浓度对化学法制备Ni-P涂层性能的影响
IF 2 4区 材料科学
Journal of Materials Engineering and Performance Pub Date : 2025-12-09 DOI: 10.1007/s11665-025-12757-3
Ahmad Saadi Samra, Muhammad Ahmad, Ramazan Kahraman, Bilal Mansoor, R. A. Shakoor
{"title":"Impact of Concentrations of AlN Nanoparticles on Properties of Ni-P Coatings Synthesized by Electroless Process","authors":"Ahmad Saadi Samra,&nbsp;Muhammad Ahmad,&nbsp;Ramazan Kahraman,&nbsp;Bilal Mansoor,&nbsp;R. A. Shakoor","doi":"10.1007/s11665-025-12757-3","DOIUrl":"10.1007/s11665-025-12757-3","url":null,"abstract":"<div><p>This study reports the synthesis and characterization of Ni-P-AlN nanocomposite coatings with varying concentrations of aluminium nitride (AlN) nanoparticles. The coatings were deposited on carbon steel substrates using an electroless deposition technique. Structural (XRD, SEM) and compositional analyses (EDX) confirmed the successful co-deposition of AlN nanoparticles into the Ni–P matrix. A comparative analysis of the developed coatings indicates that Ni-P-AlN nanocomposite coatings exhibit their best mechanical and corrosion resistance performance with an optimum composition of AlN nanoparticles at 0.75 g/L. The improvement in microhardness of Ni-P-AlN nanocomposite coatings with increasing concentration of AlN nanoparticles can be attributed to the formation of a compact coating structure, grain refinement, and dispersion hardening effect. Similarly, an enhancement in corrosion protection efficiency of Ni-P-AlN nanocomposite by the gradual increase of AlN nanoparticles may be attributed to the reduction in the active area of the Ni-P matrix and reduced porosity due to the filling of pores by AlN nanoparticles. A decline in mechanical and corrosion-resistant properties beyond the optimal concentration (0.75 g/L) is observed, likely due to excessive agglomeration of AlN nanoparticles caused by their high surface area. These findings demonstrate that Ni-P-AlN nanocomposite coatings are suitable for many industries.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 9","pages":"8679 - 8693"},"PeriodicalIF":2.0,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11665-025-12757-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147363276","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
Mechanisms of Molybdenum Doping for Enhancing Fluoride-Induced Pitting Corrosion Resistance in Titanium Alloys for PEMFC Bipolar Plates 钼掺杂提高PEMFC双极板钛合金抗氟化点蚀性能的机理
IF 2 4区 材料科学
Journal of Materials Engineering and Performance Pub Date : 2025-12-08 DOI: 10.1007/s11665-025-12712-2
Yu Pan, Xi Meng, Hongwei Chu, Xiao Wang, Zhentao Yuan, Lu Li, Haiguang Huang, Muhammad Dilawer Hayat
{"title":"Mechanisms of Molybdenum Doping for Enhancing Fluoride-Induced Pitting Corrosion Resistance in Titanium Alloys for PEMFC Bipolar Plates","authors":"Yu Pan,&nbsp;Xi Meng,&nbsp;Hongwei Chu,&nbsp;Xiao Wang,&nbsp;Zhentao Yuan,&nbsp;Lu Li,&nbsp;Haiguang Huang,&nbsp;Muhammad Dilawer Hayat","doi":"10.1007/s11665-025-12712-2","DOIUrl":"10.1007/s11665-025-12712-2","url":null,"abstract":"<div><p>Titanium alloy bipolar plates with excellent performance play a crucial role in improving the overall performance of proton exchange membrane fuel cells (PEMFC). However, the localized pitting corrosion induced by fluoride ions presents a significant limitation to the widespread application of this material. In this study, Mo-modified titanium alloy bipolar plates were synthesized using vacuum arc melting, and the mechanisms underlying the inhibition of pitting corrosion were elucidated. The results showed that the Mo is evenly distributed in titanium alloys and is concentrated in small amounts at grain boundaries, existing in 4-valent and 6-valent states. Further electrochemical results reveal that the Ti-Mo alloy have exceptional resistance to corrosion caused by fluorine. In anode environment, the corrosion current densities of the Ti-0.6Mo alloy anode are measured at 0.437 µA cm<sup>−2</sup>, while the constant potential current densities stay stable at − 0.786 µA cm<sup>−2</sup>, which is lower than that of Pure Ti (3.278 µA cm<sup>−2</sup>, 1.323 µA cm<sup>−2</sup>, respectively). It is worth nothing that the addition amount of Mo is 0.6 wt.%, a MoO<sub>3</sub> phase is formed in the pitting holes, which can effectively inhibit the pitting of F<sup>−</sup>. (The work function of MoO<sub>3</sub> is 8.221 eV.) In addition, Ti-0.6Mo demonstrates good interfacial contact resistance under a compressive force of 140 N cm<sup>2</sup> (19.5 mΩ cm<sup>2</sup>). Although this does not meet the DOE's 2020 target of 10 mΩ cm<sup>2</sup>, it significantly reduces the challenge of subsequent coating modifications. This study elucidates the mechanism by which Mo inhibits pitting corrosion induced by F<sup>−</sup> ions in Ti-Mo bipolar plates, offering valuable insights for the modification of Ti-Mo bipolar plates.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 15","pages":"14866 - 14879"},"PeriodicalIF":2.0,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147727361","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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