Journal of Materials Engineering and Performance最新文献_第6页

Design of High-Performance (CrMnFeCoNi)100-xWx High Entropy Alloys: Theory and Experiment 高性能（crmnnfeconi）100-xWx高熵合金的设计：理论与实验

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-15 DOI: 10.1007/s11665-026-14522-6

Runchen Gao, Gang Qin, Stephan Schönecker, Huahai Mao, Xiaojie Li, Levente Vitos, Xiaoqing Li, Ruirun Chen

{"title":"Design of High-Performance (CrMnFeCoNi)100-xWx High Entropy Alloys: Theory and Experiment","authors":"Runchen Gao, Gang Qin, Stephan Schönecker, Huahai Mao, Xiaojie Li, Levente Vitos, Xiaoqing Li, Ruirun Chen","doi":"10.1007/s11665-026-14522-6","DOIUrl":"10.1007/s11665-026-14522-6","url":null,"abstract":"<div><p>In this work, valence electron concentration (VEC), thermodynamic calculation (CALPHAD), and first-principles method were combined to predict the phase formation of (CrMnFeCoNi)<sub>100-<i>x</i></sub>W<sub><i>x</i></sub><i> (x = </i>0-16) HEAs. Based on the predicted results and insight, five (CrMnFeCoNi)<sub>100-<i>x</i></sub>W<sub><i>x</i></sub> (<i>x</i> = 0, 4, 8, 12, 16) HEAs were prepared by experiment. The phase composition, microstructure, and mechanical properties of the selected five HEAs were studied systematically by experiment. The experimental results on the phase formation agree very well with those of the theoretical prediction. The experimental results show that the yield strength of the (CrMnFeCoNi)<sub>100-<i>x</i></sub>W<sub><i>x</i></sub> increases by approximately three times with the addition of 16 at.% W content, while the compressive the compressive fracture strain is moderately reduced. By investigating the relationship between the phase fraction of the BCC and the yield strength as a function of W content, we conclude that the formation of the BCC phase is strongly correlated with the improvement in yield strength of (CrMnFeCoNi)<sub>100-<i>x</i></sub>W<sub><i>x</i></sub> HEAs.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 36","pages":"37698 - 37707"},"PeriodicalIF":2.6,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098989","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

Performance Enhancement of 3D-Printed Polymer Ball-and-Socket Joints Using Magnetorheological Finishing 利用磁流变整理增强3d打印聚合物球窝接头的性能

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-15 DOI: 10.1007/s11665-026-14526-2

Surya Pratap Singh, Anant Kumar Singh, Rajesh Kumar Shukla

{"title":"Performance Enhancement of 3D-Printed Polymer Ball-and-Socket Joints Using Magnetorheological Finishing","authors":"Surya Pratap Singh, Anant Kumar Singh, Rajesh Kumar Shukla","doi":"10.1007/s11665-026-14526-2","DOIUrl":"10.1007/s11665-026-14526-2","url":null,"abstract":"<div><p>3D-printed polymer ball-and-socket joints are widely used in robotic mechanisms and biomedical systems due to their ability to support multi-directional motion. However, parts fabricated by fused deposition modelling (FDM) often exhibit pronounced surface roughness caused by the layer-by-layer deposition process, resulting in higher friction, heat generation, and wear during operation. To address this limitation, the present study employs a hybrid finishing approach combining sequential grinding with magnetorheological (MR) finishing applied to 3D-printed polymer ball-and-socket joints using a six-axis motion-controlled setup. The acrylonitrile butadiene styrene (ABS) material is used in the present study as a ball-and-socket joint. The fabricated ball-and-socket joints are further subjected to the proposed finishing sequence. The initial average surface roughness (<i>R</i><sub><i>a</i></sub>) of the fabricated ball-and-socket joint was measured as 4.46 and 6.65 µm, respectively. These values are decreased to 1.31 and 1.27 µm after the grinding process, and subsequently reduced to 0.09 and 0.12 µm followed by the MR finishing. Further, surface morphology was examined using scanning electron microscopy to observe the qualitative enhancement after fine finishing. Additionally, reductions in form error, coefficient of friction, and wear characteristics were observed, indicating improved form accuracy and functional performance. Consequently, a static structural-based ANSYS simulation was performed to analyze the mechanical functionality improvement after fine finishing. These comprehensive results demonstrate that the present MR finishing produces high-quality surfaces with better surface texture and functional performance. The fine-finished ball-and-socket joints show promising suitability for real-world robotic and biomedical applications.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 36","pages":"37361 - 37376"},"PeriodicalIF":2.6,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098966","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

Preparation and Curing Characteristics of Slurry for Lithography-Based Metal Manufacturing of 316L Stainless Steel 316L不锈钢光刻金属加工用浆料的制备及固化特性

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-15 DOI: 10.1007/s11665-026-14590-8

Qingqing Pan, Ziyang Zhang, Shaolian Zeng, Jinsong Ma, Qingxiao Yu, Zhi Xiao, Chenyu Wang, Bingchen He, Jingguang Peng

{"title":"Preparation and Curing Characteristics of Slurry for Lithography-Based Metal Manufacturing of 316L Stainless Steel","authors":"Qingqing Pan, Ziyang Zhang, Shaolian Zeng, Jinsong Ma, Qingxiao Yu, Zhi Xiao, Chenyu Wang, Bingchen He, Jingguang Peng","doi":"10.1007/s11665-026-14590-8","DOIUrl":"10.1007/s11665-026-14590-8","url":null,"abstract":"<div><p>Lithography-based metal manufacturing (LMM), as a sintering-based additive manufacturing technology, enables the fabrication of high-performance metal components with high precision and complex geometries. In this paper, the mechanism of action of different types of dispersants is studied to enhance the stability of the metal slurry, and its curing characteristics are investigated. In addition, the effects of debinding and sintering temperatures on the carbon content, microstructure, and mechanical properties of LMM-fabricated 316L stainless steel are discussed. The results demonstrate that a stainless steel slurry with a viscosity of 3425 mPa·s and a 10-hour sedimentation height of less than 0.2 cm can be prepared using the dispersant combination of SP-710 and BYK-9076. By preparing single cured lines and layers and measuring their dimensions, the scattering effect of the stainless steel slurry was quantitatively characterized. It was found that the scattering effect of the metal powder was pronounced: the cured line width exceeded 102 μm, with the maximum curing depth reaching over 70 μm. Meanwhile, the debinding temperature profile was optimized. Finally, the carbon content, porosity, density, and microhardness of the 316L stainless steel sintered at 1340 °C were 0.03 wt.%, 0.82%, 7.73 g/cm<sup>3</sup>, and 120.6 HV1, respectively.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 Focus—Space","pages":"38781 - 38798"},"PeriodicalIF":2.6,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214621","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

Osteogenic Performance of Calcium Phosphate–Alumina Scaffolds: Influence of Composition Ratio and Pore Structure 磷酸钙-氧化铝支架的成骨性能：组成比和孔结构的影响

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-15 DOI: 10.1007/s11665-026-14557-9

Yu Zusho, Hiromi Miyoshi, Naoya Sakamoto, Satoshi Kobayashi

{"title":"Osteogenic Performance of Calcium Phosphate–Alumina Scaffolds: Influence of Composition Ratio and Pore Structure","authors":"Yu Zusho, Hiromi Miyoshi, Naoya Sakamoto, Satoshi Kobayashi","doi":"10.1007/s11665-026-14557-9","DOIUrl":"10.1007/s11665-026-14557-9","url":null,"abstract":"<div><p>Unidirectionally aligned porous calcium phosphate–alumina composite scaffolds were fabricated via freeze-casting to obtain controlled pore architectures. Because bone-regenerative materials are required to simultaneously provide mechanical strength and support essential cellular functions, achieving an appropriate pore structure is critical. This study investigated the influence of the alumina content and pore structure on the osteogenic response of MC3T3-E1 cells. The scaffolds exhibited either larger pores ( ~ 100 <i>μ</i>m) or smaller pores ( ~ 60 <i>μ</i>m), and pore alignment was most pronounced in those containing 50 vol.% alumina. Although a higher alumina content reduced initial cell adhesion, subsequent proliferation and osteogenic progression were not adversely affected. Scaffolds with larger pores and greater pore alignment showed more uniform extracellular matrix deposition, indicating that pore architecture—particularly larger pore sizes combined with highly oriented channels—exerts a stronger influence on osteogenic behavior than composition. These findings clarify the structure–property relationships governing the biological performance of calcium phosphate–alumina scaffolds and support their potential utility in bone tissue engineering.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 36","pages":"37814 - 37823"},"PeriodicalIF":2.6,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11665-026-14557-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098998","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

Synergistic Ta-rich TaN Coatings on Stainless Steel and Ta-Sputtered Carbon Paper for Low-Resistance PEMFCs 低阻pemfc用不锈钢和ta溅射碳纸的协同富ta TaN涂层

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-15 DOI: 10.1007/s11665-026-14582-8

Qi Zhang, Yifei Chen, Jun Mao, Chengtao Chen, Haibo Guo, Yigang Chen

{"title":"Synergistic Ta-rich TaN Coatings on Stainless Steel and Ta-Sputtered Carbon Paper for Low-Resistance PEMFCs","authors":"Qi Zhang, Yifei Chen, Jun Mao, Chengtao Chen, Haibo Guo, Yigang Chen","doi":"10.1007/s11665-026-14582-8","DOIUrl":"10.1007/s11665-026-14582-8","url":null,"abstract":"<div><p>Bipolar plates (BPs) are critical for proton-exchange-membrane fuel cells (PEMFCs), requiring high corrosion resistance and low electrical resistance. In this study, Ta/TaN composite films with low interfacial contact resistance (ICR) and high corrosion resistance were deposited on stainless steel bipolar plates by magnetron sputtering. Optimization of sputtering power and duration revealed that linearly decreasing TaN power from 100 to 0 W during the final 10 min of deposition maximized corrosion resistance. This process reduced the corrosion current density from 4.51 × 10<sup>−6</sup> A/cm<sup>2</sup> (under constant 100 W TaN power) to 3.46 × 10<sup>−7</sup> A/cm<sup>2</sup>. As for the electrical resistance, by considering the gas diffusion layer (GDL) and the bipolar plate as an integrated assembly, the ICR between the Ta/TaN-coated stainless steel and the Ta-sputtered carbon paper reached 8.64 mΩ cm<sup>2</sup>. This low ICR is because that the interface between Ta-rich TaN coating on stainless steel and Ta coating on carbon paper promoted the electron transfer and reduced interfacial energy barrier.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 Focus—Space","pages":"38713 - 38721"},"PeriodicalIF":2.6,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214605","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

Auxetic Behavior and Compressive Performance of Additively Manufactured Inconel 718 Tetra-Chiral Structures for Aerospace Turbine Applications 航空涡轮用增材制造Inconel 718四手性结构的增减性能和压缩性能

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-15 DOI: 10.1007/s11665-026-14543-1

Venkatesh Govindan, Muthukannan Duraiselvam, Arunachalakasi Arockiarajan, Nazeer Sayed Yunus

{"title":"Auxetic Behavior and Compressive Performance of Additively Manufactured Inconel 718 Tetra-Chiral Structures for Aerospace Turbine Applications","authors":"Venkatesh Govindan, Muthukannan Duraiselvam, Arunachalakasi Arockiarajan, Nazeer Sayed Yunus","doi":"10.1007/s11665-026-14543-1","DOIUrl":"10.1007/s11665-026-14543-1","url":null,"abstract":"<div><p>The tetra-chiral auxetic structure was fabricated from Inconel 718 superalloy using selective laser melting (SLM) at various relative densities (25, 50, and 75%) and cell sizes (2 and 3 mm). A quasi-static compression test was conducted both experimentally and numerically to assess the effect of the negative Poisson’s ratio on the compressive stress–strain relationship of the auxetic structure. Morphological examination of IN718 superalloys revealed cellular and columnar dendritic structures. The experimental results show that the tetra-chiral auxetic structure with a 2 mm cell size and 75% relative density exhibits an ultimate compressive strength of 1004.17 MPa and a yield compressive strength of 237.20 MPa, which are higher than those of the 3 mm cell size structure. The experimental results were validated against 2.5D models through FEA analysis, which shows a stronger correlation between the FEA simulations and the experimental results. The enhanced negative Poisson’s ratio of − 1.96 was achieved at a 3 mm cell size, compared with 2 mm, due to the variation in cell size and relative density. The deformed tetra-chiral auxetic structure showed crack propagation, and elongated grain patterns formed under the compressive load. The tetra-chiral auxetic structure with a 2 mm cell size and 75% RD exhibits excellent weight reduction and mechanical properties under compressive loads, making it suitable for potential applications in aero-turbine blades.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 36","pages":"37788 - 37804"},"PeriodicalIF":2.6,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098965","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

Influences of Solvent and Abrasive in Polishing Slurry on Material Removal, Surface Roughness, and Acoustic Emission Signal of 4H-SiC Si-Face in Chemical Mechanical Polishing 抛光液中溶剂和磨料对化学机械抛光中4H-SiC硅面材料去除、表面粗糙度和声发射信号的影响

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-14 DOI: 10.1007/s11665-026-14578-4

Kerong Wang, Jiapeng Chen, Yanan Peng, Bing Liu, Guizhong Guo, Nannan Zhu, Jianxiu Su

{"title":"Influences of Solvent and Abrasive in Polishing Slurry on Material Removal, Surface Roughness, and Acoustic Emission Signal of 4H-SiC Si-Face in Chemical Mechanical Polishing","authors":"Kerong Wang, Jiapeng Chen, Yanan Peng, Bing Liu, Guizhong Guo, Nannan Zhu, Jianxiu Su","doi":"10.1007/s11665-026-14578-4","DOIUrl":"10.1007/s11665-026-14578-4","url":null,"abstract":"<div><p>This study comprehensively investigates the effects of solvent type (deionized water, ethylene glycol, and their mixture), abrasive content (0.05-0.45 wt.%), and abrasive size (W0.5 to W14) on the material removal rate (MRR), surface roughness (Sa), and AE signal (root mean square, RMS) during the CMP of 4H-SiC Si-face. The experimental approach was complemented by ReaxFF molecular dynamics (MD) simulations to elucidate chemical interactions and finite element analysis (FEA) to model mechanical indentation and material removal. The findings demonstrate that AE signal RMS is sensitive to key slurry parameters and can be correlated with polishing performance under specific conditions. Ethylene glycol, owing to its high viscosity and strong chemical reactivity, yielded the highest MRR (32.5 nm/min) but also the maximum surface roughness (Sa = 2.30 nm). An optimal abrasive content of 0.25 wt.% was identified as the peak concentration, maximizing MRR, Sa, and RMS simultaneously. Increasing abrasive size monotonically increased MRR and Sa, while the AE RMS exhibited a non-linear trend, peaking at W7 size. The correlation coefficient obtained by the fitted curves between AE RMS and MRR under varying abrasive content was<i> R</i><sup>2</sup> = 0.94, and between AE RMS and Sa was<i> R</i><sup>2</sup> = 0.93. The correlation between AE RMS and polishing performance (MRR, Sa) was strong and positive for variations in abrasive content but was complex and balanced by chemical-mechanical interactions for solvent and abrasive size variations.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 36","pages":"37449 - 37457"},"PeriodicalIF":2.6,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098710","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

Synergistic Effect of Cu-Sn Microalloying and Aging Temperature on the Precipitation Hardening and Mechanical Properties of Al-Mg-Si Alloys Cu-Sn微合金化和时效温度对Al-Mg-Si合金析出硬化和力学性能的协同效应

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-14 DOI: 10.1007/s11665-026-14561-z

Yaoyao Weng, Yue Zheng, Yuqi Yang, Ruyun Shen, Li Xie, Hao Yu

{"title":"Synergistic Effect of Cu-Sn Microalloying and Aging Temperature on the Precipitation Hardening and Mechanical Properties of Al-Mg-Si Alloys","authors":"Yaoyao Weng, Yue Zheng, Yuqi Yang, Ruyun Shen, Li Xie, Hao Yu","doi":"10.1007/s11665-026-14561-z","DOIUrl":"10.1007/s11665-026-14561-z","url":null,"abstract":"<div><p>Systematic exploration of the synergistic effects of Cu-Sn microalloying and aging temperature on the age-hardening behavior and mechanical performance of Al-Mg-Si alloys is presented. The combined addition of Cu and Sn significantly enhances peak hardness, refining the precipitates. When peak-aged at 180 °C, the Cu-Sn-modified Al-Mg-Si alloy achieves a maximum hardness of 138 HV and a yield strength (YS) of 314 MPa, showing a consistent enhancement between hardness and YS governed by precipitation strengthening. The alloy also obtains an ultimate tensile strength (UTS) of 389 MPa, representing increases of 39.6% in yield strength and 29.7% in UTS compared with the Al-Mg-Si base alloy at its peak aging condition of 160 °C. Cu and Sn additions promote the formation of uniformly distributed <i>β</i>″ hardening precipitates and facilitate the evolution of Mg-Si-Cu-Sn co-clusters, thereby accelerating the precipitation kinetics. Furthermore, the incorporation of Cu and Sn reduces the density of brittle Fe-rich intermetallic compounds, while it leads to a notable reduction in elongation. The aging temperature of 180 °C is identified as the optimal condition, as it balances the nucleation rate of precipitates and their resistance to coarsening during the aging process. This work demonstrates that the strategic coupling of Cu-Sn microalloying with optimized aging temperature offers an effective approach to enhance the age-hardening response and comprehensive mechanical properties of Al-Mg-Si alloys, providing valuable insights for the design and development of high-performance aluminum materials.</p><h3>Graphical Abstract</h3><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 36","pages":"37503 - 37519"},"PeriodicalIF":2.6,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098679","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

Microstructural Refinement and Toughening Mechanism of Co Modified AlSiTiNi-WC Coatings Fabricated by Laser Cladding 激光熔覆Co改性alsitni - wc涂层的组织细化及增韧机理

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-14 DOI: 10.1007/s11665-026-14574-8

Huangping Ye, Chonggui Li, Youhong Zhu, Jiuxiao Li, Hao Zhang, Shenglai Tang, Haodong Liu

{"title":"Microstructural Refinement and Toughening Mechanism of Co Modified AlSiTiNi-WC Coatings Fabricated by Laser Cladding","authors":"Huangping Ye, Chonggui Li, Youhong Zhu, Jiuxiao Li, Hao Zhang, Shenglai Tang, Haodong Liu","doi":"10.1007/s11665-026-14574-8","DOIUrl":"10.1007/s11665-026-14574-8","url":null,"abstract":"<div><p>Laser cladding of metal matrix composites reinforced with WC often suffers from cracking due to inherent brittleness. This study investigates the addition of Cobalt (0, 5, 10 and 15 wt.%) to AlSiTiNi-WC coatings to mitigate cracking and enhance wear performance through microstructural tailoring. The results indicate that Co addition induces a significant microstructural transformation, shifting the matrix from coarse cellular dendrites to fine equiaxed grains.Co facilitates the formation of a robust “bimodal structure”, characterized by retained large WC particles and in-situ precipitation of fine Co-W-C and Ni<sub>2</sub>Si carbides distributed within a toughened bcc/fcc matrix. This Co-induced structural modification significantly reduces crack initiation. The coating with 10 wt.% Co exhibited the optimal balance, achieving a maximum microhardness of 703.5 HV<sub>0.2</sub> and superior wear resistance (lowest friction coefficient and wear volume). The improvement is attributed to the synergistic effect of solution strengthening, grain refinement, and precipitation hardening inherent in the bimodal structure. Furthermore, Co addition shifted the dominant wear mechanism from severe brittle fracture and abrasive wear to mild abrasive and oxidative wear.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 36","pages":"37575 - 37593"},"PeriodicalIF":2.6,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098680","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

Synergistic Enhancement of Chromaticity and Corrosion Resistance in Gold-Like Cu-Zn Alloy Targets via Multi-Element Doping 多元素掺杂协同增强类金铜锌合金靶材的色度和耐蚀性

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-14 DOI: 10.1007/s11665-026-14423-8

Wang Le-yi, Sun Qi-fei

{"title":"Synergistic Enhancement of Chromaticity and Corrosion Resistance in Gold-Like Cu-Zn Alloy Targets via Multi-Element Doping","authors":"Wang Le-yi, Sun Qi-fei","doi":"10.1007/s11665-026-14423-8","DOIUrl":"10.1007/s11665-026-14423-8","url":null,"abstract":"<div><p>This study presents a systematic investigation into enhancing the chromaticity and corrosion resistance of copper-zinc-based gold-like target materials through a multi-element (Al, Mn, Zr) alloying strategy. Sixteen distinct alloy compositions were designed and fabricated via medium-frequency induction melting. Notably, Chromaticity analysis revealed that the optimized composition (Sample No. 9: Cu-65 wt.%, Al-3 wt.%, Mn-3 wt.%, Zr-0.6 wt.%, bal. Zn) yielded the closest color match to pure gold, achieving a minimum color difference (Δ<i>E</i>) of 11.25. Comprehensive electrochemical characterization in a 3.5 wt.% NaCl solution demonstrated that this optimal sample also exhibited excellent corrosion resistance, with a charge transfer resistance (Rct) of 5.99 Ω·cm<sup>2</sup> and a corrosion current density (Icorr) of 1.5073 × 10<sup>−6</sup> A·cm⁻<sup>2</sup>. Among the dopants, Mn was identified as the most influential element in suppressing corrosion. Microstructural analysis via scanning electron microscopy (SEM) elucidated the underlying mechanism: the enhanced performance was attributed to the refined <i>α</i> + <i>β</i> dual-phase structure and the uniform dispersion of Zr/Mn-containing nano-precipitates, which collectively hindered corrosive attack. This work provides a fundamental experimental basis and valuable insights for designing high-performance, gold-like alloy targets for advanced decorative coatings.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 35","pages":"36374 - 36384"},"PeriodicalIF":2.6,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149034802","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