Powder Metallurgy and Metal Ceramics最新文献

{"title":"Correction to: Catalytic Effect of RTO3 Perovskites on Hydrogen Storage and Hydrolysis Properties of Magnesium Hydride","authors":"O.P. Kononiuk, I.Yu. Zavaliy, V.V. Berezovets, A.R. Kytsya, I.V. Lutsyuk, L.O. Vasylechko, M.V. Chekailo, Yu.M. Solonin","doi":"10.1007/s11106-024-00411-x","DOIUrl":"10.1007/s11106-024-00411-x","url":null,"abstract":"","PeriodicalId":742,"journal":{"name":"Powder Metallurgy and Metal Ceramics","volume":"62 7-8","pages":"503 - 503"},"PeriodicalIF":0.9,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140222984","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":"Thermodynamic Properties of Melts in the Eu–Ge System","authors":"V. A. Shevchuk,&nbsp;L. O. Romanova,&nbsp;V. G. Kudin,&nbsp;M. O. Shevchenko,&nbsp;V. S. Sudavtsova","doi":"10.1007/s11106-024-00409-5","DOIUrl":"10.1007/s11106-024-00409-5","url":null,"abstract":"<p>The isoperibolic calorimetry method was employed to determine, for the first time, the partial and integral mixing enthalpies for melts in the Eu–Ge system over the entire composition range at 1200 K and 1370–1440 K. The minimum mixing enthalpy for these melts was –49.1 ± 4.4 kJ/mol and was shown by the alloy with <i>x</i>_Ge = 0.45, while <span>(Delta {overline{H} }_{{text{Eu}}}^{infty })</span> = –145.7 ± 22.3 kJ/mol and <span>(Delta {overline{H} }_{{text{Ge}}}^{infty })</span> = –166.8 ± ± 19.8 kJ/mol at 1400 ± 3 K, correlating with the solid-state behavior of these melts. This allows categorizing these melts within the series of the Ge–Ln (lanthanide) systems and justifying the thermodynamic properties of melts in the Eu–Ge system, in particular, and in the Ge–Ln system, in general. Using the thermochemical properties for melts in the Eu–Ge system, the ideal associated solution model was employed to optimize and calculate the Gibbs energies, enthalpies, and entropies of formation for the melts, associates in melts, and intermetallics. A large number of associates, especially EuGe, formed in the studied melts because of the highest probability of collision between two dissimilar atoms in liquid alloys. The maximum mole fraction of the EuGe associate reached 0.48 and those of Eu₃Ge, Eu₂Ge, EuGe₂, and EuGe₃ were 0.2, 0.26, 0.24, and 0.26, respectively. The activities of components in melts of the Eu–Ge system showed substantial negative deviations from the ideal solution, correlating with our thermochemical properties. This all indicated strong interactions between dissimilar atoms in melts of the Eu–Ge system, likely involving the transfer of valence electrons of europium to the 4p orbital of germanium. The Δ<i>G</i> values over the entire composition range were greater than Δ<i>H</i>, with Δ<i>G</i>_min = –28.8 kJ/mol at <i>x</i>_Ge = 0.45. Moreover, the Δ<i>G</i> function was also almost symmetrical because of the entropy contribution (mixing entropy of the studied melts was negative, and Δ<i>S</i>_min = –15.0 J/mol K at <i>x</i>_Ge = 0.45). The calculations based on the ideal associated solution model also established that the <span>(Delta {overline{H} }_{{text{Eu}}}^{infty })</span> values for melts in the Eu–Ge system increased insignificantly with temperature, while <span>(Delta {overline{H} }_{{text{Ge}}}^{infty })</span> increased more substantially. This might be due to the break of covalent bonds between germanium atoms. Complete information on the thermodynamic properties of all phases was obtained, enabling a thermodynamic description of the Eu–Ge system for the first time.</p>","PeriodicalId":742,"journal":{"name":"Powder Metallurgy and Metal Ceramics","volume":"62 7-8","pages":"481 - 489"},"PeriodicalIF":0.9,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140168170","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":"Structurization Mechanism in the Growth of Titanium Alloys","authors":"A. A. Skrebtsov,&nbsp;J. I. Kononenko,&nbsp;O. V. Lysytsia,&nbsp;A. V. Kononenko","doi":"10.1007/s11106-024-00410-y","DOIUrl":"10.1007/s11106-024-00410-y","url":null,"abstract":"<p>Additive manufacturing is a process of producing parts, involving incremental addition of material onto a flat or axial substrate. This manufacturing option is also called ‘growth’ because the product is formed by continuously building up layers of material until it is complete. Additive materials and techniques are modern and relevant. Employing these techniques, materials can be produced with various types of energy to fuse powders. The structurization mechanism is virtually unknown in this case. Using additive manufacturing techniques, samples were prepared from the VT1-0 alloy powder on a VT20 alloy substrate and from the VT20 alloy powder on a VT1-0 alloy substrate. The structures of samples cut out from different areas of the deposited material were studied and their microhardness was measured. The relationship between the structure and microhardness in the deposited material was shown. A structurization mechanism for titanium material through the deposition of titanium powder was proposed. A mechanism for the formation of pores in the metal was suggested. The structurization process was characterized by the redistribution of doping elements in the deposited metal and the substrate, as evidenced by changes in microhardness. The microhardness varied from the level characteristic of the substrate metal to the microhardness inherent in the deposited metal. The temperature gradient during the growth of a metal sample was uneven. This led to changes in the size of the structural components in the metal. The powder was fused layer by layer, with the formation of pores depending on the powder particle size. Larger particles formed larger pores compared to those formed by finer powders. The processes established in the experiments were consistent for both deposition options. The difference resided in the base metal, specifically its chemical composition. The proposed mechanism enhanced the general understanding of the structurization processes during additive growth (deposition) of titanium alloys from their powders.</p>","PeriodicalId":742,"journal":{"name":"Powder Metallurgy and Metal Ceramics","volume":"62 7-8","pages":"490 - 495"},"PeriodicalIF":0.9,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140168171","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":"Machinability of a Sinter-Hardened Powder Metallurgy Steel: Combined Analysis of Cutting Force and Chip Characteristics","authors":"Harshal Kulkarni,&nbsp;Vikram V. Dabhade","doi":"10.1007/s11106-024-00406-8","DOIUrl":"10.1007/s11106-024-00406-8","url":null,"abstract":"<p>This study investigates the machining of FLC-4608 (designation by Metal Powder Industries Federation, standard 35) sinter-hardened steel compacts with 90% relative density during turning operation. The objective of the study is to analyze the effect of cutting velocity and feed rate on the cutting force component in the direction of cutting motion using chip characteristics. The results showed that the combination of high cutting velocity and low feed rate is the appropriate condition to obtain a low value of the cutting force component. The results also indicated that the machining configurations considered produce shear-localized segmented chips, also known as saw tooth chips, and that the chip formation process involves almost complete densification of the uncut chip material. Except for chip length, all the investigated chip characteristics, minimum and maximum chip thickness, shear band microstructure, and structure below the tip of the chip segment were consistent with the results of the cutting force component. As the feed rate increased, the minimum and maximum chip thickness increased, which was consistent with the increasing value of the cutting force component. Similarly, through the microstructure of the adiabatic shear band and the structure below the tip of the chip segment, increasing cutting velocity showed the dominance of the thermal softening effect over strain hardening and strain rate hardening, consistent with the decreasing value of the cutting force component. This approach is novel, as chip characteristics have received little attention in previous studies on the machining of PM materials. The present study is potentially helpful to the PM industry in achieving better machining process control through a thorough understanding of the results related to the cutting force component in the direction of the cutting motion. The future scope discussed in this report also has prospects for advancing the science of machining PM materials.</p>","PeriodicalId":742,"journal":{"name":"Powder Metallurgy and Metal Ceramics","volume":"62 7-8","pages":"445 - 458"},"PeriodicalIF":0.9,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140168153","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":"Properties of Metal, Nitride, Oxide, and Carbide Coatings Produced from High-Entropy Alloys","authors":"V. F. Gorban,&nbsp;A. A. Andreev,&nbsp;V. A. Stolbovy,&nbsp;S. A. Firstov,&nbsp;M. V. Karpets,&nbsp;M. I. Danylenko","doi":"10.1007/s11106-024-00408-6","DOIUrl":"10.1007/s11106-024-00408-6","url":null,"abstract":"<p>The introduction of high-entropy alloys, notable for their increased hardness and thermal stability, gave impetus to the study of their properties in coatings. High-entropy metal coatings are characterized by high hardness, ranging from 7 to 19 GPa. The general laws governing the influence of various parameters on the mechanical properties of high-entropy metal coatings were analyzed. Single-layer metal, nitride, oxide, and carbide coatings and multilayer nitride coatings from high-entropy alloys produced by different deposition techniques were examined. The phase composition, structure, hardness, elastic modulus, and friction coefficient of the coatings were determined. The mechanical properties of high-entropy coatings, along with those of cast alloys, depend on the lattice parameter. With increase in the lattice parameter in bcc metal coatings, the elastic modulus and hardness decrease. The increased hardness of vacuum high-entropy coatings contributes to decrease in their friction coefficient compared to the cast state. The influence of pressure in the sputtering chamber and the voltage applied to the substrate on properties of the nitride coatings was established. The capabilities of producing thick (up to 80 μm) coatings combining metal and nitride interlayers from high-entropy alloys and determining their properties were shown. For the high-entropy carbide in the TiZrNbVTaHf system, the influence of the lattice parameter on hardness was revealed. The lowest friction coefficient (0.05) was observed in high-entropy oxide coatings. The high-entropy coatings showed high hardness. A hardness level of 19 GPa was reached for a metal coating based on the TiZrNbTaHfCr alloy, 63 GPa for a nitride coating based on the TiZrNbVHf alloy, and 48 GPa for a carbide coating based on the TiZrNbVHfTa alloy. The analysis showed that nitride coatings were the hardest, while the lowest friction coefficient was possessed by oxide coatings.</p>","PeriodicalId":742,"journal":{"name":"Powder Metallurgy and Metal Ceramics","volume":"62 7-8","pages":"469 - 480"},"PeriodicalIF":0.9,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140168523","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":"Synthesis and Consolidation of Composite Materials in the SiC–Si3N4–Si2N2O System","authors":"N. K. Davydchuk,&nbsp;M. P. Gadzyra,&nbsp;Y. G. Tymoshenko,&nbsp;M. O. Pinchuk","doi":"10.1007/s11106-024-00407-7","DOIUrl":"10.1007/s11106-024-00407-7","url":null,"abstract":"<p>Features peculiar to the synthesis of SiC–Si₃N₄–Si₂N₂O composite powder with a controlled content of silicon carbide, nitride, and oxynitride phases, as well as the structure and properties of hot-pressed ceramics produced from this powder, were examined. The optimal composition of the synthesized SiC–Si₃N₄–Si₂N₂O powder was achieved by heating a 1 : 3 mixture of thermally expanded graphite (TEG) and silicon up to 1200°C in air. The interaction of TEG with fine silicon at 1200°C led to the formation of a solid solution of carbon in silicon carbide, accompanied by heat release. The generated heat increased temperature within localized volumes of the TEG cellular structure to a level where air nitrogen facilitated the development of silicon nitride and oxynitride and an amorphous phase. The amorphous phase crystallized as the interaction time increased to 2.5 h. The duration of the process influenced the final distribution of the phases, formed with the participation of CO, SiO, and air nitrogen. The microstructure of the synthesized powder was characterized by a general agglomerated state, resulting from rod and plate forms of Si₃N₄ and Si₂N₂O. Hot pressing of the synthesized SiC–Si₃N₄–Si₂N₂O composite powder with Al₂O₃ and Y₂O₃ activators yielded superfine ceramics, possessing enhanced hardness and fracture toughness (HV10 = 20.7 GPa and <i>K</i>_Ic = 6.5 MPa · m^1/2). The structure of the ceramics sintered at 2000°C differed from those sintered at 1850°C, primarily by higher density and average grain size. The superfine state significantly influenced the abrasive wear resistance of the ceramics in dry friction conditions. The linear wear index of a sample with an average size of structural elements varying from 0.2 to 1.5 μm was 111 μm/km at a sliding speed of 1 m/sec under a load of 0.2 MPa. This was significantly lower than the linear wear index of industrial ceramics of reaction-sintered silicon carbide (RSSC), which was 232.4 μm/km.</p>","PeriodicalId":742,"journal":{"name":"Powder Metallurgy and Metal Ceramics","volume":"62 7-8","pages":"459 - 468"},"PeriodicalIF":0.9,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140168600","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":"Modeling the Gas Permeability of the Powder Bed in a Rotary Furnace","authors":"A. L. Maximenko,&nbsp;O. I. Hetman,&nbsp;M. B. Shtern,&nbsp;E. A. Olevsky","doi":"10.1007/s11106-024-00401-z","DOIUrl":"10.1007/s11106-024-00401-z","url":null,"abstract":"<p>Rotary furnaces are used as reactors to intensify chemical processes between the powder and gas atmosphere around it. The furnace rotation leads to relative motion and dilation of the powder layers, facilitating gas access. The paper is devoted to the modeling of nickel oxide powder behavior in a rotary furnace to estimate the contribution of furnace rotation speed to gas permeability when the nickel oxide granules are reduced in a hydrogen atmosphere. Discrete element modeling of powder granules in a rotary furnace was conducted employing Altair EDEM commercial software to estimate the powder gas permeability at different stages. The powder bed in a horizontal cylindrical rotary furnace was modeled as a packing of identical spherical granules with diameters equal to those of the nickel oxide granules. The furnace rotation led to periodic oscillations of the powder along the furnace wall with an amplitude that gradually diminished to some steady value. Gas permeability of the powder bed was evaluated through the porosity function, derived from the Carman permeability equations. Greater gas permeability resulting from significant powder dilation was observed only in active shear zones on the powder bed surface and in the contact area between the powder and the furnace wall. Sizes of the shear zones depended on the furnace rotation speed but never exceeded several granule diameters for all rotation speeds. The efficiency of a rotary furnace as a chemical reactor was shown to be determined not only by the powder dilation but also by the regeneration rate for the powder bed surface. The regeneration rate can be calculated and changes nonlinearly with the furnace rotation speed.</p>","PeriodicalId":742,"journal":{"name":"Powder Metallurgy and Metal Ceramics","volume":"62 7-8","pages":"383 - 389"},"PeriodicalIF":0.9,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140149354","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":"Two-Dimensional Molybdenum Disulfide–Water: Intercalation Processes, New Functional Properties, and Application Prospects","authors":"L. M. Kulikov","doi":"10.1007/s11106-024-00402-y","DOIUrl":"10.1007/s11106-024-00402-y","url":null,"abstract":"<p>Modern research findings for the interaction of two-dimensional molybdenum disulfide (primarily in the nanocrystalline state) with water and air moisture were analyzed. Studies focusing on water intercalation/deintercalation processes and mechanisms in nanocrystalline d-transition metal dichalcogenides (TMDs, mainly 2D MoS₂) are at their initial stage. Intercalated water was found to significantly influence the multifunctional properties of 2D MoS₂ nanostructures and microsized powders. The need for interdisciplinary studies of 2D TMD nanostructures intercalated with water through complex mechanisms was justified. In particular, the studies should include the development of intercalation/deintercalation nanotechnologies, establishment of interrelationships between the intercalation processes/mechanisms and the state of actual surfaces and features of actual nanostructures, determination of differences in intercalation processes and mechanisms for various semiconductor and metallic nanostructures, and design of multifunctional low-dimensional van der Waals nanomaterials with controllable properties based on nanosized 2D/nD heterostructures (n = = 0, 1, 2, 3) intercalated with water. Promising applications for 2D MoS₂ nanostructures intercalated with water are as follows: nanotechnologies of heterostructures with abnormal water properties, tribological characteristics of solid lubricants with moisture present, nanotechnologies using water or aqueous solutions, sorbents and photocatalysts for water purification, electro(photo, piezo)catalysts for the production of hydrogen and oxygen through water electrolysis, as well as hydrovoltaic effects, air humidity sensors, biosensors, and disinfection agents (COVID-19 pandemic).</p>","PeriodicalId":742,"journal":{"name":"Powder Metallurgy and Metal Ceramics","volume":"62 7-8","pages":"390 - 399"},"PeriodicalIF":0.9,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140149278","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":"Simulation of Two-Stage Hot Forging of Porous Workpieces Involving Severe Plastic Deformation","authors":"G. A. Bagliuk,&nbsp;S. F. Kyryliuk,&nbsp;N. K. Zlochevska","doi":"10.1007/s11106-024-00404-w","DOIUrl":"10.1007/s11106-024-00404-w","url":null,"abstract":"<p>The evolution of the stress-strain state and the relative density distribution throughout a porous workpiece in the two-stage hot forging process was studied. The primary stage involved hot deformation of a cylindrical preform with the application of force to its lateral surface to form an intermediate semi-finished product with a cross-section shaped as a truncated cone. Further deformation in the secondary stage involved hot forging of the conical workpiece into a prism. These process stages were simulated using the finite-element method with the DEFORM 2D/3D software package. The starting preform was a cylinder with uniformly distributed porosity throughout the volume. The simulation results revealed significant uneven strains ε_i across the workpiece following the primary process stage, leading to an area with increased strains ε_i concentrated near the upper punch. Conversely, the secondary process stage noticeably evened out the strain values across the forged workpiece. This occurred because the severe deformation area in the secondary process stage matched the stagnant area in the primary stage. The proposed two-stage deformation pattern achieved sufficiently high strains (1.3–1.7), allowing the production of forged materials with excellent mechanical properties.</p>","PeriodicalId":742,"journal":{"name":"Powder Metallurgy and Metal Ceramics","volume":"62 7-8","pages":"427 - 435"},"PeriodicalIF":0.9,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140149458","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":"Microstructural Evolution and Mechanical Properties of the Ti2AlNb Alloy with 3 wt.% W and 0.1 wt.% Y Obtained Using Powder Metallurgy Technique","authors":"Youyu Li","doi":"10.1007/s11106-023-00394-1","DOIUrl":"10.1007/s11106-023-00394-1","url":null,"abstract":"<p>TiAl intermediate compound is an important material for high-temperature applications due to its superior creep resistance and oxidation resistance. It is suitable for high-pressure compressors and low-pressure turbine blades of advanced military aircraft engines. TiAl intermediate compound is an excellent substitute for nickel-based superalloys, as it can decrease weight by 40% and greatly enhance aircraft thrust-to-weight ratio. In this paper, the microstructure evolution and the mechanical properties of Ti₂AlNb alloy with a 3.0 wt.% W and 0.1 wt.% Y addition obtained by blending elemental ultrafine powders was investigated by XRD, SEM-EDS, and mechanical testing device. The findings show that high relative density of 0.9945, and the excellent mechanical properties of Ti₂AlNb–3W–0.1Y alloy can be obtained through isothermal sintering for 3 hour in a furnace with controllable argon atmosphere flow of 200 mL/min at 1,500°C. The alloy’s tensile strength, yield strength, and elongation reach 1,030 MPa, 913 MPa, and 15.1% at 700°C, respectively. Meanwhile, the 3 wt.% of element W is added to the alloy to form (TiW)C as the second strengthening phase, which is uniformly distributed in the matrix of Ti₂AlNb. The addition of Y element at 0.1 wt.% into the alloy can act as an effective scavenger of oxygen and inhibit the unsatisfactory precipitation of the brittle α₂-phase in the Ti₂AlNb alloy. Compared to the alloy without additions, the Ti₂AlNb alloy with 3 wt.% W and 0.1 wt.% Y demonstrated 13.5% and 19.35% improvements in the fracture resistance at 25°C and 700°C, respectively. The alloy’s yield strength was increased as well. The evolution regularity of the main metallography is (Ti₂AlNb–TiAl–Ti₃Al) → (Ti₂AlNb–Ti₃Al) → (Ti₂AlNb–Ti₃Al–(TiW) C) during the isothermal sintering of Ti–22Al–25Nb–3W–0.1Y alloy at 1,500°C. This study provides technical guidance for the preparation of ultrafine TiAl-based alloy powder and high-temperature aerospace applications</p>","PeriodicalId":742,"journal":{"name":"Powder Metallurgy and Metal Ceramics","volume":"62 5-6","pages":"302 - 311"},"PeriodicalIF":0.9,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139030893","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}