Journal of Materials Engineering and Performance最新文献_第7页

Engineering Multicationic Pathways for Next-Gen Dielectric and Thermistor Applications 新一代电介质和热敏电阻应用的工程多通径

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-14 DOI: 10.1007/s11665-026-14536-0

Wided Nouira, Abd Raouf Jdidi, A. Bouazizi, Malek Gassoumi

{"title":"Engineering Multicationic Pathways for Next-Gen Dielectric and Thermistor Applications","authors":"Wided Nouira, Abd Raouf Jdidi, A. Bouazizi, Malek Gassoumi","doi":"10.1007/s11665-026-14536-0","DOIUrl":"10.1007/s11665-026-14536-0","url":null,"abstract":"<div>In this study, a novel multicationic spinel system Cd0.6Mg0.2Cu0.2Co2-xFexO4 (x = 0, 0.5, 1.0, 1.5) was synthesized via a sol–gel method and systematically investigated for its structural, chemical, and dielectric properties. XRD and Rietveld refinement confirmed a single-phase cubic spinel structure across all compositions, while XPS and Raman spectroscopy revealed the evolution of Fe3+/Fe2+ and Co3+/Co2+ redox pairs with increasing Fe content, enabling tunable polaronic conduction. Dielectric analyses, including impedance, electric modulus, and AC conductivity, demonstrated thermally activated relaxation governed by small polaron hopping, with a progressive shift from overlapping large polaron tunneling (OLPT) to non-overlapping small polaron tunneling (NSPT) mechanisms. Fe substitution significantly enhanced dielectric response and conductivity, reducing activation energy and relaxation time. Additionally, thermistor parameters (β, TCR, α) indicated high thermal sensitivity and negative temperature coefficient behavior, suggesting potential for temperature sensing applications. These findings underscore the synergistic role of multicationic doping and Fe-mediated conduction in optimizing dielectric and thermoelectric performance in spinel ferrites.</div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 36","pages":"37559 - 37574"},"PeriodicalIF":2.6,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098709","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

Numerical Validation of Thermal Expansivity of Al6061 Based Hybrid Nano Metal Matrix Composite Filled with Nanoparticles of Ni and Cr Ni和Cr纳米颗粒填充Al6061基杂化纳米金属基复合材料热膨胀性能的数值验证

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-14 DOI: 10.1007/s11665-026-14512-8

Raj Kumar, Kedar Narayan Bairwa

{"title":"Numerical Validation of Thermal Expansivity of Al6061 Based Hybrid Nano Metal Matrix Composite Filled with Nanoparticles of Ni and Cr","authors":"Raj Kumar, Kedar Narayan Bairwa","doi":"10.1007/s11665-026-14512-8","DOIUrl":"10.1007/s11665-026-14512-8","url":null,"abstract":"<div>Aluminum 6061 (Al6061) is a commonly used aluminum alloy due to its better mechanical and thermal characteristics. This paper investigates the thermal properties of Al6061-based hybrid metal matrix composites, which are fabricated using a stir-casting technique. The composites are reinforced with varying weight percentages of nickel (Ni) and chromium (Cr) nanoparticles, while fixed weight percentages of graphene and magnesium nanoparticles are added to enhance self-lubrication and wettability. The coefficient of thermal expansion (CTE) of the composites is evaluated as a function of thermal strain and temperature difference over a temperature range of 50 to 300 °C. Results show that the CTE decreases with increasing reinforcement weight fraction up to 0.6 wt.% of Ni and 0.6 wt.% of Cr, but beyond this limit, further addition of reinforced particles results in an increase in CTE. At 300 °C, a hybrid nano metal matrix composite reinforced with 0.6 wt. % of Ni and 0.6 wt. % of Cr exhibits a minimum CTE of 19.7 x 10-6/°C, which is significantly lower than that of Al6061 (25.8 x 10-6/°C). To validate the experimental results, finite element analysis (FEA) is conducted to determine the thermal strain, thermal displacement, and thermal stress. The experimental findings are found to be in good agreement with the FEA outcomes. Overall, the results of this study suggest that the addition of Ni and Cr nanoparticles can effectively improve the thermal properties of Al6061-based hybrid metal matrix composites.</div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 36","pages":"37534 - 37543"},"PeriodicalIF":2.6,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098708","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

Prediction of Machining-Induced Residual Stress Depth Profiles in Aluminum Alloys via Data-Driven Ensemble Learning 基于数据驱动集成学习的铝合金加工残余应力深度预测

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-13 DOI: 10.1007/s11665-026-14481-y

Laixiao Lu, Zuchao Lu, Zhonglei Wang, Jie Sun, Qilong Shi, Hong Zhan, Dayu Shu

{"title":"Prediction of Machining-Induced Residual Stress Depth Profiles in Aluminum Alloys via Data-Driven Ensemble Learning","authors":"Laixiao Lu, Zuchao Lu, Zhonglei Wang, Jie Sun, Qilong Shi, Hong Zhan, Dayu Shu","doi":"10.1007/s11665-026-14481-y","DOIUrl":"10.1007/s11665-026-14481-y","url":null,"abstract":"<div>The depth profile of machining-induced surface residual stress in aluminum alloys directly governs dimensional stability, fatigue life, and susceptibility to stress‑corrosion cracking; hence rapid prediction across diverse process conditions is needed to complement costly and coverage‑limited measurements. Focusing on milling of 7075‑T7451 aluminum alloy, we propose an EDC-LightGBM ensemble learning framework. Milling experiments were conducted, and residual stress was measured by x‑ray diffraction combined with electropolishing layer‑removal. The residual‑stress data were fitted with an Exponentially Damped Cosine (EDC) model under bounded constraints using the trust‑region reflective (TRF) algorithm, with process‑parameter‑informed initialization to enhance convergence robustness. The EDC fits yield coefficients of determination R2 = 0.893-0.991, demonstrating high fidelity in characterizing near‑surface residual‑stress depth profiles. Subsequently, a multi‑output LightGBM regressor was trained with cutting parameters as features to learn a nonlinear mapping from process conditions to EDC coefficients. Validation on process combinations unseen during training shows close agreement between predicted profiles and measurements, with mean predictive accuracy of 89.7-91.4%, indicating strong generalization and engineering applicability. The proposed EDC-LightGBM approach achieves a physics‑constrained, data‑driven fusion for aluminum-alloy milling, balancing accuracy, efficiency, and interpretability, and providing reliable support for rapid prediction of residual‑stress distributions and process optimization.</div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 36","pages":"37295 - 37308"},"PeriodicalIF":2.6,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098954","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

Assessing the Influence of Conventional Heat Treatment on High-Temperature Tensile Deformation Behavior of Additively Manufactured AlSi10Mg 常规热处理对增材制造AlSi10Mg高温拉伸变形行为的影响

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-13 DOI: 10.1007/s11665-026-14375-z

Ranjith Kumar Ilangovan, Hariharan Krishnaswamy, Ravi Sankar Kottada

{"title":"Assessing the Influence of Conventional Heat Treatment on High-Temperature Tensile Deformation Behavior of Additively Manufactured AlSi10Mg","authors":"Ranjith Kumar Ilangovan, Hariharan Krishnaswamy, Ravi Sankar Kottada","doi":"10.1007/s11665-026-14375-z","DOIUrl":"10.1007/s11665-026-14375-z","url":null,"abstract":"<div>Understanding the temperature-dependent plastic deformation and fracture behavior of additively manufactured (AM) AlSi10Mg is critical for design considerations in aerospace and automotive sectors. In this study, the temperature-dependent (RT–250 °C) tensile deformation behavior of laser powder bed fusion (LPBF)-processed AlSi10Mg was investigated in both the as-built (AB) and conventionally solution-treated and aged (STA: T6) conditions, while correlating with a detailed microstructural analysis. The AB condition exhibited higher tensile strength than the cast AlSi10Mg (~50% higher at RT and ~ 40% higher at 200 °C), whereas the STA condition showed lower strength (15% lower at RT and 4% lower at 200 °C). Additionally, the STA resulted in a decrease in uniform elongation at all temperatures vis-à-vis the AB. These critical variations in temperature-dependent tensile properties are attributed to distinct microstructural differences in these two variants. Deformation in the AB condition was dominated by brittle fracture, controlled by the cellular eutectic network. In contrast, the STA condition exhibited ductile fracture, where damage was associated with the globularized Si phase. These findings offer insights into the temperature-dependent tensile behavior of LPBF-processed AlSi10Mg and its application at high temperatures.</div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 Focus—Space","pages":"38387 - 38402"},"PeriodicalIF":2.6,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214612","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

Role of Microstructure and Heat Input on Crack Nucleation and Propagation in Submerged Arc Welding of API X70 Pipeline Steel 组织和热输入对API X70管线钢埋弧焊裂纹形核和扩展的影响

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-13 DOI: 10.1007/s11665-026-14552-0

M. Hinojosa, F. Guzmán

{"title":"Role of Microstructure and Heat Input on Crack Nucleation and Propagation in Submerged Arc Welding of API X70 Pipeline Steel","authors":"M. Hinojosa, F. Guzmán","doi":"10.1007/s11665-026-14552-0","DOIUrl":"10.1007/s11665-026-14552-0","url":null,"abstract":"<div>Weld toe crack failure in submerged arc welding of API X70 PSL2 pipeline steels represents an important defect; the underlying mechanisms, especially the role of heat input under real manufacturing conditions, are not well understood. Here we study the process conditions that minimize this phenomenon while maintaining compliance with PSL2 specifications and at the same time perform analysis aiming to advance the understanding of the mechanisms involved. Two API X70 PSL2 steel plates 15.6 (0.614 in) and 18.7 mm (0.736 in) in thickness were welded using SAW with nine different HI values (192-287 kJ/in). Characterization included chemical and microstructural analysis, Vickers hardness testing, Charpy V-notch impact tests at 0 ℃, guided bend tests, and scanning electron microscopy fractography. Optimal HI of 219 kJ/in produced microstructures with a mixture of allotriomorphic ferrite (AlF), Widmanstätten ferrite (WF), and acicular ferrite (AF), achieving toughness up to 451.5 N-m (333 lb-ft), no cracks in guided bend tests and featured a ductile fracture surface. A critical AlF grain size threshold of 10 μm was identified: grains greater than 10 μm promote brittle propagation. Oxygen content variations of 25-32 ppm significantly altered AF grain size (13-14 ASTM grain size numbers). Paradoxically, the presence of WF increased toughness despite serving as crack nucleation site. Cracks nucleate at WF tips due to geometric stress concentration, then propagate either in ductile manner through AF or brittlely through AlF. Weld toe crack failure originates from elastic incompatibility between weld deposit and heat-affected zone (HAZ).</div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 36","pages":"37471 - 37481"},"PeriodicalIF":2.6,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098955","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

Anticorrosive Performance and Preparation of Sodium Silicate-Modified Zn-Al Composite Coating on Carbon Steel in 3.5% NaCl Solution 碳钢表面硅酸钠改性Zn-Al复合涂层在3.5% NaCl溶液中的防腐性能及制备

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-13 DOI: 10.1007/s11665-026-14425-6

Mehrdad Mousavi, Mohamadreza Etminanfar, Tahereh Gholizadeh

{"title":"Anticorrosive Performance and Preparation of Sodium Silicate-Modified Zn-Al Composite Coating on Carbon Steel in 3.5% NaCl Solution","authors":"Mehrdad Mousavi, Mohamadreza Etminanfar, Tahereh Gholizadeh","doi":"10.1007/s11665-026-14425-6","DOIUrl":"10.1007/s11665-026-14425-6","url":null,"abstract":"<div>Chromium-free dacromet coatings were developed to replace conventional coatings containing carcinogenic hexavalent chromium. However, these coatings often suffer from performance gaps, such as intrinsic defects like pores and cracks, which compromise their protective capabilities and adhesion. This study investigates the use of sodium silicate as an additive in chromium-free dacromet coatings to address these issues. Different concentrations (0.1, 0.2, and 0.3 g) were investigated. Findings indicate that sodium silicate effectively improved the coating’s properties by reducing pores and cracks, leading to a more uniform surface. At an optimal concentration of 0.3 g by weight, the coating exhibited its best performance. This formulation increased the microhardness from 127.0 ± 21.3 to 222.6 ± 23.9 Hv, a significant improvement of over 75%. Electrochemical tests further confirmed this enhancement, with the 0.3 g sodium silicate coating showing the lowest corrosion current of 0.0027 mA/cm2. This corresponds to a corrosion protection efficiency of 96.7%. EIS results corroborated polarization, suggesting the corrosion protection mechanism is primarily a physical barrier effect created by the dense silicate layer. Salt spray tests further confirmed the improved barrier performance of the modified coatings, with the sample containing 0.3 g of sodium silicate showing minimal red rust formation after 250 hours of exposure. Overall, the research demonstrates that sodium silicate is a practical and economically superior additive for enhancing the microhardness and corrosion resistance of chromium-free dacromet coatings.</div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 35","pages":"36445 - 36455"},"PeriodicalIF":2.6,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149034650","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

Study on Microstructure and Properties of FV520B Stainless Steel Brazed Joints with (CuCrNiMn)100−xSix Multi-component Filler Metal （CuCrNiMn）100−x6多组分钎料FV520B不锈钢钎焊接头的组织与性能研究

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-13 DOI: 10.1007/s11665-026-14312-0

Xiaojiao Zuo, Ziyuan Guo, Tiantao He, Sainan Nie, Bowen Zheng, Xuejian Lin, Yuhang Yue

{"title":"Study on Microstructure and Properties of FV520B Stainless Steel Brazed Joints with (CuCrNiMn)100−xSix Multi-component Filler Metal","authors":"Xiaojiao Zuo, Ziyuan Guo, Tiantao He, Sainan Nie, Bowen Zheng, Xuejian Lin, Yuhang Yue","doi":"10.1007/s11665-026-14312-0","DOIUrl":"10.1007/s11665-026-14312-0","url":null,"abstract":"<div>High-entropy alloys (HEAs) exhibit exceptional properties derived from unique phase structures and chemical composition design. Appropriately designed HEAs show great potential as filler materials for joining fan impellers and blades. In this study, multi-component filler metals based on the (CuCrNiMn)100−xSix system were employed to braze FV520B stainless steel joints. Following vacuum brazing, the joints fabricated with filler metals containing varying Si contents were analyzed in terms of microstructure, phase composition, diffusion kinetics, and mechanical properties. The results indicate that increasing the Si content significantly mitigates intergranular cracking in the brazed joints, and the microstructure primarily consists of an FCC-structured Cr0.19Fe0.7Ni0.11 solid solution and a Cu-Ni solid solution. The Si element with a small atomic radius needs less critical energy through the grain boundary, which drives other metal elements to have strong diffusion behavior. As the Si content increases, the diffusion coefficients of each element increase, and the diffusion distances extend, which subsequently influences the chemical composition and mechanical properties of the brazed seam. The best filler metal composition is (CuCrNiMn)95Si5, and the shear strength is 256 MPa.</div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 33","pages":"34626 - 34636"},"PeriodicalIF":2.6,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962316","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

Enhanced Wear Resistance of Laser-Cladded NiCrMo Coatings with Y and Y2O3 Additions: Microstructure Regulation and Underlying Mechanisms 添加Y和Y2O3增强激光熔覆NiCrMo涂层的耐磨性：组织调控及其机理

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-13 DOI: 10.1007/s11665-026-14515-5

Yuming Fu, Wenxuan Xiong, Changcheng Li, Chen Fu, Lijuan Zheng

{"title":"Enhanced Wear Resistance of Laser-Cladded NiCrMo Coatings with Y and Y2O3 Additions: Microstructure Regulation and Underlying Mechanisms","authors":"Yuming Fu, Wenxuan Xiong, Changcheng Li, Chen Fu, Lijuan Zheng","doi":"10.1007/s11665-026-14515-5","DOIUrl":"10.1007/s11665-026-14515-5","url":null,"abstract":"<div>To enhance the wear resistance of ASTM 1045 steel, a NiCrMo coating was fabricated via laser cladding technology, incorporating 1 wt.% yttrium (Y), and yttrium oxide (Y2O3) as distinct reinforcing phases. This study systematically characterized and comparatively analyzed their effects on microstructural evolution and strengthening mechanisms within the coatings. The coating modified with 1 wt.% Y2O3 exhibited the highest average microhardness of 320 HV, which is approximately twice that of the substrate. This coating also demonstrated a reduction in wear loss of about 81% compared to the substrate, along with the most stable friction coefficient, maintained at around 0.5. While both additives improved coating performance, their mechanisms of action differed significantly. Elemental Y functioned primarily as a surfactant, reducing melt pool surface tension and enhancing fluidity, thereby facilitating the formation of FeMoSi intermetallic compounds. Conversely, Y2O3 particles served predominantly as heterogeneous nucleation sites. This role facilitated significant grain refinement and promoted the formation of a thermodynamically stable Cr12Fe36Mo10 topologically close-packed phase, which contributed to the overall strengthening.</div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 36","pages":"37761 - 37774"},"PeriodicalIF":2.6,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098956","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

Corrosion Behavior and Wear Characteristics of Micro-Arc Oxidation Coatings on 2195 Al-Li Alloy Modified by HCPEB HCPEB改性2195 Al-Li合金微弧氧化涂层的腐蚀行为和磨损特性

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-13 DOI: 10.1007/s11665-026-14570-y

Yuemei Qin, Chao Wu, Yunlong Wang, Feng Wang, Linzhong Zhu

{"title":"Corrosion Behavior and Wear Characteristics of Micro-Arc Oxidation Coatings on 2195 Al-Li Alloy Modified by HCPEB","authors":"Yuemei Qin, Chao Wu, Yunlong Wang, Feng Wang, Linzhong Zhu","doi":"10.1007/s11665-026-14570-y","DOIUrl":"10.1007/s11665-026-14570-y","url":null,"abstract":"<div>Ceramic coatings were fabricated on 2195 aluminum-lithium alloy via micro-arc oxidation (MAO) and then modified by high-current pulsed electron beam (HCPEB) irradiation. The microstructure, corrosion behavior, and wear performance of the coatings were systematically investigated. The results indicate that α-Al2O3 remains the dominant phase both before and after HCPEB treatment. HCPEB treatment increases coating density and reduces porosity to 8.48%, while coating thickness remains nearly unchanged. Compared with the untreated substrate, the MAO-HCPEB coating exhibits approximately 85.56% reduction in corrosion pit depth, along with a notable reduction in corrosion area. Electrochemical tests reveal that both MAO and HCPEB treatments improve the corrosion resistance of the 2195 Al-Li alloy, and the MAO-HCPEB coating exhibits superior corrosion performance. In addition to enhanced corrosion resistance, the MAO-HCPEB coating also demonstrates superior tribological performance, which is mainly attributed to the reduced porosity. These results demonstrate that MAO-HCPEB composite surface modification can effectively endow 2195 Al-Li alloy with enhanced corrosion resistance, hardness, and wear resistance.</div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 36","pages":"37482 - 37492"},"PeriodicalIF":2.6,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098964","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 and Mechanism of Potential Fluctuation Parameters on X70 Steel Corrosion under Dynamic DC Interference 动态直流干扰下电位波动参数对X70钢腐蚀的影响及机理

IF 2.6 4区材料科学

Journal of Materials Engineering and Performance Pub Date : 2026-07-13 DOI: 10.1007/s11665-026-14542-2

Chao Yang, Xingxin Dong, Wendi Yang, Gan Cui, Jianguo Liu

{"title":"Influence and Mechanism of Potential Fluctuation Parameters on X70 Steel Corrosion under Dynamic DC Interference","authors":"Chao Yang, Xingxin Dong, Wendi Yang, Gan Cui, Jianguo Liu","doi":"10.1007/s11665-026-14542-2","DOIUrl":"10.1007/s11665-026-14542-2","url":null,"abstract":"<div>In recent years, a large number of subway-based urban rail transit construction, buried pipelines near the subway by dynamic DC stray current interference, accelerating the pipeline corrosion at the point of corrosion layer breakage, seriously affecting the pipeline safety and daily management. This paper investigates the influence of three typical parameters—amplitude, frequency, and waveform change period—on the corrosion behavior of X70 steel under dynamic DC stray current interference, using weight loss and electrochemical tests. Furthermore, the corresponding corrosion mechanisms regarding time and waveform variations are elucidated. The results show that the corrosion is intensified with the increase of the interference potential amplitude, the decrease of the frequency and the increase of the waveform change period. With the increase of corrosion time, the corrosion products appeared a typical double-layer structure, with the upper layer consisting of sparse and porous Fe2O3 and FeO(OH), which was easier to fall off, and the lower layer dominated by dense Fe3O4. With the increase of the period of the disturbance potential waveform change, Fe3O4 in the corrosion products increased significantly, and the corrosion products were mainly Fe3O4, Fe2O3 and FeO(OH).</div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 36","pages":"37837 - 37852"},"PeriodicalIF":2.6,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098835","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