Journal of Materials Engineering and Performance最新文献

{"title":"Effects of High-Temperature Deformation and Welding on Microstructure and Thermomechanical Properties of Ti-6Al-4V","authors":"J. Nagarjun,&nbsp;M. Senthil Vel,&nbsp;G. Swaminathan,&nbsp;N. Saravanakumar,&nbsp;J. John Rozario Jegaraj,&nbsp;G. Yoganand,&nbsp;P. Mastanaiah","doi":"10.1007/s11665-025-11066-z","DOIUrl":"10.1007/s11665-025-11066-z","url":null,"abstract":"<div><p>The present work investigates the thermal and mechanical behavior of Ti-6Al-4 V alloy across a temperature range from room temperature to 1000 °C, focusing on its application in welding and hot-processing simulations. The study examines temperature-dependent properties, such as phase transformation, thermal expansion, density, and specific heat capacity, with a specific emphasis on the α (hexagonal close-packed, HCP) to β (body-centered cubic, BCC) phase transformation around 800 °C. Various testing methods, including tensile testing, dilatometry, and differential scanning calorimetry (DSC), were used to generate data for these properties. The results show a marked decrease in density and mechanical strength at elevated temperatures, with notable shifts in thermal expansion and heat absorption trends during the α to β phase transition. Microstructural analyses of welded samples reveal distinct regions: the base metal, heat-affected zone, and fusion zone, each showing unique thermal responses and mechanical characteristics. In particular, the HAZ exhibits grain coarsening and reduced mechanical properties, while the FZ displays a dendritic β-phase structure with increased hardness but reduced ductility. These findings provide a detailed database for the thermomechanical modeling of Ti-6Al-4 V alloy, supporting more accurate simulations of welding and hot deformation processes, essential for optimizing performance in high-temperature applications.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 20","pages":"23010 - 23018"},"PeriodicalIF":2.0,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284288","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}

{"title":"Microstructure Evolution and High-Temperature Fracture Toughness of Al0.3CrFeNiCu1.5Mox (x = 0,0.1,0.2,0.3) High-Entropy Alloys","authors":"Rongyi Na,&nbsp;Shulin Dong,&nbsp;Yingdong Qu,&nbsp;Ruirun Chen,&nbsp;Guanglong Li,&nbsp;Wei Zhang,&nbsp;Siruo Zhang,&nbsp;Weikai Kang","doi":"10.1007/s11665-025-11099-4","DOIUrl":"10.1007/s11665-025-11099-4","url":null,"abstract":"<div><p>In order to enhance the high-temperature fracture toughness of high-entropy alloy, the phase composition, microstructure evolution, fracture toughness and crack propagation behavior of Al_0.3CrFeNiCu_1.5Mo_x alloy with Mo alloying are studied. The results show that the Al_0.3CrFeNiCu_1.5 alloy is composed of FCC + BCC solid solution. When Mo element increases, σ phase is gradually appeared near the main peak of (111)_FCC. The atomic size of Mo element is large, which is easy to cause lattice distortion. The diffraction peaks of (111)_FCC and (110)_BCC are separated. The Al_0.3CrFeNiCu_1.5Mo_x alloys are composed of typical dendrites. The fracture toughness test shows that the value decreases continuously at 25 °C; the value increases first and then decreases at 200 °C (Mo-01 alloy average value is 73.291 MPa·m^1/2) and 300 °C (Mo-01 alloy value is 49.260 MPa·m^1/2); the fracture toughness value first remains unchanged and then decreases at 400 °C. The addition of Mo element plays a strengthening role, the secondary dendrite wall is obviously thickened. The crack propagation path is long, and the crack deflection is obvious. Most of the dendrites have a certain angle with the crack propagation direction, which hinders the crack propagation.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 18","pages":"20038 - 20049"},"PeriodicalIF":2.0,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090650","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}

{"title":"Improvement of Mechanical Properties of Tantalum–Tungsten Alloy by Multi-pass Low-Pressure Reciprocating Cold-Rolling Process Combined with Annealing Treatment","authors":"Yulong Yang,&nbsp;Yanping Zeng,&nbsp;Leijun Zhan,&nbsp;Zengyang Huang,&nbsp;Zhongchen Xu,&nbsp;Zhaobin Gong,&nbsp;Shaolei Liu,&nbsp;Zhiyong Zhao","doi":"10.1007/s11665-025-11025-8","DOIUrl":"10.1007/s11665-025-11025-8","url":null,"abstract":"<div><p>Under the annealing treatment of 900 ~ 1150 °C, the multi-pass low-pressure reciprocating cold-rolling (MLR-CR) process and less-pass high-pressure unidirectional cold-rolling (LHU-CR) process of tantalum–tungsten alloy were studied. The microstructure and mechanical properties under the two conditions were characterized and analyzed. The results show that the mechanical properties of MLR-CR process were obviously improved at the same annealing treatment conditions. Even under the annealing condition of 1150 °C, the yield strength of MLR-CR process still reached over ~ 370 MPa. The microhardness was maintained at 220-240HV, and the elongation was close to 48%. Compared with LHU-CR process, the comprehensive mechanical properties of tantalum–tungsten alloy was improved under the condition of MLR-CR process, which was mainly attributed to the fine microstructure of MLR-CR process. Under the same annealing conditions, the dislocation density increased and recrystallization phenomenon was delayed in MLR-CR process compared with LHU-CR process. The mechanical properties of MLR-CR process are improved by dislocation strengthening and grain refinement synergistically.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 20","pages":"23341 - 23352"},"PeriodicalIF":2.0,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284266","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}

{"title":"Optimizing Cold Spray Deposition on Thermoplastics: A Machine Learning Approach Focused on Powder Properties","authors":"Alessia Serena Perna,&nbsp;Alessia Auriemma Citarella,&nbsp;Fabiola De Marco,&nbsp;Luigi Di Biasi,&nbsp;Antonio Viscusi,&nbsp;Genoveffa Tortora,&nbsp;Massimo Durante","doi":"10.1007/s11665-025-11096-7","DOIUrl":"10.1007/s11665-025-11096-7","url":null,"abstract":"<div><p>The cold spray (CS) process offers an advanced method for metallizing thermoplastic polymers, providing a low-temperature solution to overcome the limitations of traditional coating techniques. However, optimizing the cold spray process for metallizing thermoplastic polymers is a complex task due to the numerous interacting parameters that influence coating quality. As traditional trial-and-error approaches are time-consuming and costly, machine learning (ML) could offer a solution to these challenges by providing further insights into the process and enabling more efficient optimization. The aim of this work is to identify the most relevant input parameters for ML models, with a particular focus on powder characteristics, to predict two critical outcomes: particle flattening and penetration depth. Two distinct datasets were created for this study: one focused on particle yield strength and the other on powder density, each combined with further input parameters like impact velocity and substrate yield strength. These datasets were constructed using experimental data and finite element modeling (FEM) simulations, with materials including copper, aluminum, titanium, and others, applied to thermoplastic substrates like polyether ether ketone (PEEK), acrylonitrile butadiene styrene (ABS), and polyamide 66 (PA66). Several ML algorithms, including decision trees, neural networks, and Gaussian process regression, were tested to predict coating behavior, and the effects of Z-score normalization were evaluated for improving model stability and prediction accuracy. The results show that particle yield strength is crucial for flattening, while particle density primarily governs penetration depth. This study demonstrates that ML, when combined with a solid understanding of the process, offers an effective framework for optimizing CS deposition on polymers.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 8","pages":"6527 - 6538"},"PeriodicalIF":2.2,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11665-025-11096-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117757","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}

{"title":"Investigating the Feasibility of Metallizing Reprocessable Vitrimeric Components through Cold Spray Technique","authors":"Alessia Serena Perna,&nbsp;Antonello Astarita,&nbsp;Alfonso Martone,&nbsp;Barbara Palmieri,&nbsp;Antonio Viscusi","doi":"10.1007/s11665-025-11108-6","DOIUrl":"10.1007/s11665-025-11108-6","url":null,"abstract":"<div><p>Epoxy vitrimers, distinguished by their unique combination of the mechanical strength typical of thermosets with the reprocessability of thermoplastics, represent a promising class of materials for advanced technological applications. To optimize their performance in high-demand environments, surface functionalization of vitrimers and vitrimeric composites is crucial to enhance their durability and reliability in harsh conditions. This research work aims at studying the feasibility of metallising vitrimer-based components through cold spray technology. Aluminium coatings were applied under varying process parameters, inlet gas temperature (<i>T</i> = 150 –450 °C) and standoff distance (SoD = 70 mm–100 mm), to evaluate their impact on deposition quality and substrate behaviour. The deposition processes were performed on non-reinforced vitrimeric substrates as well as on vitrimeric matrix substrates reinforced with carbon fibre fabric. The results suggest that successful metallization occurs when the substrate temperature exceeds the topology freezing transition temperature (Tv ≈ 170 °C), enabling the ductile behaviour necessary for effective adhesion. At <i>T</i> = 300 °C and SoD = 100 mm, pure vitrimer coatings exhibited an average thickness of 50 ± 10 µm with minimal substrate deformation (grooves &lt; 4% of panel thickness), while lower temperatures (<i>T</i> = 150 °C) resulted in brittle fracture and poor adhesion. Surface roughness increased from Sa = 0.15 ± 0.05 µm for uncoated substrates to Sa = 6.59 µm after coating. In contrast, composite substrates demonstrated enhanced stability due to fibre reinforcement, which constrained excessive substrate flow. At the best process conditions (<i>T</i> = 300 °C and SoD = 100 mm), composite panels achieved homogeneous coatings with Sa = 4.513 µm. However, excessive temperatures (<i>T</i> = 450 °C) led to substrate erosion and fibre damage in both pure vitrimer and composite panels.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 8","pages":"6510 - 6526"},"PeriodicalIF":2.2,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11665-025-11108-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117758","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}

{"title":"Machinability of Electron Beam Powder Bed Fused Ti-6Al-4V in Face Milling with Coated Carbide End Mill","authors":"Mohammad Sayem Bin Abdullah,&nbsp;Naghmeh Melody Mojib,&nbsp;Nicole Atmadja,&nbsp;M. Ramulu","doi":"10.1007/s11665-025-10901-7","DOIUrl":"10.1007/s11665-025-10901-7","url":null,"abstract":"<div><p>This study investigates the machinability of electron beam powder bed fusion (EB-PBF) fabricated Ti-6Al-4V specimens across a range of build orientations. Specimens were machined using a AlTi-coated four flute carbide tools with a 12.7 mm diameter at a constant spindle speed of 500 RPM and a radial depth of cut of 5 mm. The axial depth of cut was varied between 0.2 and 0.8 mm, while the feed rate were varied from 25.4 to 177.8 mm/min. Force data were recorded using a rotating dynamometer, and surface integrity was assessed through optical and contact profilometry, optical microscopy, and microhardness measurements. The optimal machining parameters for single pass face milling with an endmill are as follows: axial depth of cut of = 0.8 mm, feed rate = 77.2 mm/min. The optimum condition provides a good balance between lower cutting force, tool longevity, surface roughness, and machining time. The cutting coefficient of EB-PBF Ti6Al4V is ~ 2016 N/mm². The optimal parameters were utilized to understand the relationship between cutting force and build orientation, and support structure in the 0°, 15°, 45°, 75°, and 90° oriented specimens. The cutting force varies non-linearly with build orientation and is influenced by roughness, hardness, and the availability of materials during cutting process.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 19","pages":"21430 - 21444"},"PeriodicalIF":2.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145237030","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}

{"title":"Research on Quality and Corrosion Behavior of 6082-T6 Aluminum Alloy Laser MIG Composite Welding Joint","authors":"Kuntao Liu,&nbsp;Shanglei Yang,&nbsp;Jieshi Chen,&nbsp;Xinlong Zhao","doi":"10.1007/s11665-024-10223-0","DOIUrl":"10.1007/s11665-024-10223-0","url":null,"abstract":"<div><p>In this study, the effects of internal grain structure on microhardness, tensile properties, and corrosion behavior of 6082-T6 laser MIG hybrid welded joints were investigated. The welding current of 102A and the welding speed of 50 mm/s will lead to more porosity defects. The tensile fracture surface of the welded joint exhibits a quasi-cleavage fracture mechanism. There are many spatter or inclusions in the matrix that affect the expansion of the quasi-cleavage surface, and there are many vacancies, impurities, and other defects at the grain boundary. Due to the inhomogeneity of the microstructure at the weld and the presence of precipitated phases, the electrode potential of each part of the joint is not uniform, causing electrochemical corrosion in corrosive media, resulting in more serious corrosion at the weld than at the base metal. The AlFeSi compound is easy to aggregate at the grain boundary, and there is a local potential difference with the Al matrix, which aggravates the corrosion phenomenon. The Mg element at the grain boundary is relatively higher than the Mg element inside the grain. Due to the low corrosion potential of Mg element, corrosion is more likely to occur in the Mg-rich region. The corrosion phenomenon of columnar crystal structure is more serious than that of equiaxed crystal structure.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 14","pages":"14017 - 14033"},"PeriodicalIF":2.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171423","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}

{"title":"Correction: Experimental Investigation and Finite Element Simulation of the Microstructural Evolution in AA6082 Friction Stir Welded Joints","authors":"Sara Bocchi,&nbsp;Marco Negozio","doi":"10.1007/s11665-025-11126-4","DOIUrl":"10.1007/s11665-025-11126-4","url":null,"abstract":"","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 12","pages":"11292 - 11292"},"PeriodicalIF":2.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170346","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}

{"title":"Effectiveness of Fixture Design on Cooling of Viscoelastic Soft Polymer during Cryogenic Assisted Micro-milling Process","authors":"Partha Sarathi Mallick,&nbsp;Karali Patra","doi":"10.1007/s11665-025-10830-5","DOIUrl":"10.1007/s11665-025-10830-5","url":null,"abstract":"<div><p>This study investigates the impact of fixture design on cooling soft viscoelastic polymers below their glass transition temperature (<i>T</i>_g) during cryogenic assisted micro-milling. The proposed fixture design targets effective cooling of subsurface layers, enhancing the structural stiffness of the polymer workpiece at larger depths of cut. The effectiveness of the cooling technique is quantified and compared with the performance of a standard fixture, focusing on shear stress, surface roughness, and microchannel cleanliness. However, due to size effect in micro-milling, influence cutting parameter become crucial to optimize. Therefore, proper selection of cutting parameter is initially obtained in terms of output parameters like shear stress, surface micrograph and surface roughness. The results demonstrate that the novel fixture design achieved an 83% reduction in shear stress at a feed rate of 1.66 μm/tooth, compared to 70% with the normal fixture. Additionally, the novel fixture maintained a maximum temperature variation of only 2 °C, compared to 4–5 °C with the standard fixture. At feed rates above the minimum uncut chip thickness value of 1.66 μm/tooth, the surface roughness remained consistently below 3 μm, ensuring high-quality finishes. Furthermore, the novel fixture produced small, powdery chips at a feed rate of 1.66 μm/tooth, indicating superior cooling that facilitated effective chip breaking and brittle fracture. These findings highlight the significant role of fixture design in optimizing cooling efficiency and machining performance of soft polymers.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 19","pages":"21545 - 21558"},"PeriodicalIF":2.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236999","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}

{"title":"Fusion Welding of Magnesium Alloys: Process Variants, Metallurgical Challenges, and Structure–Property Relationships—A Critical Review","authors":"S. Srinivasan,&nbsp;R. Ravi Bharath,&nbsp;Andrej Atrens,&nbsp;P. Bala Srinivasan","doi":"10.1007/s11665-024-10455-0","DOIUrl":"10.1007/s11665-024-10455-0","url":null,"abstract":"<div><p>The automotive and aero sectors seek lightweight high-strength materials for enhanced structural efficiency. Magnesium (Mg) alloys are used in defense, space, transportation, the electronic industry, and the biomedical field because of a good combination of properties viz., light weight, good specific stiffness, specific strength, processability, biocompatibility, good damping etc. Mg alloys are used in the cast and wrought forms, depending on the property demands, service requirements and cost. In addition, they are currently contemplated for non-loaded engineering structural applications. Many of these require the joining of Mg alloys, and it is timely to review the significant developments in the fusion of Mg alloys. Gas tungsten arc welding (GTAW) has often been preferred for Mg alloys because of its adaptability, stability, and economy. GTAW has various variants and a few advanced technologies. In addition, power beam processes provide some advantages amidst the challenges. The literature on fusion welding of Mg alloys is reviewed, focusing on the process / technology capabilities, effect of process parameters on the metallurgical transformation/ microstructural evolution and the resultant properties. Research gaps are identified relevant to the industrial needs to leverage the newer technologies to obtain quality weld joints also with view to achieve increased productivity and leveraging the capabilities for repair welding.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 11","pages":"9247 - 9280"},"PeriodicalIF":2.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170410","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}