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Critical Assessment 43: Microstructural and mechanical properties of friction stir additively fabricated SiC-Reinforced AA6061 build 关键评价43:搅拌摩擦添加剂制备sic增强AA6061材料的显微组织和力学性能
IF 1.8 4区 材料科学
Materials Science and Technology Pub Date : 2023-08-01 DOI: 10.1080/02670836.2023.2239634
S. Choudhury, Rahul Das, Durjyodhan Sethi, J. Roy, B. S. Roy
{"title":"Critical Assessment 43: Microstructural and mechanical properties of friction stir additively fabricated SiC-Reinforced AA6061 build","authors":"S. Choudhury, Rahul Das, Durjyodhan Sethi, J. Roy, B. S. Roy","doi":"10.1080/02670836.2023.2239634","DOIUrl":"https://doi.org/10.1080/02670836.2023.2239634","url":null,"abstract":"Friction stir additive manufacturing was employed to fabricate a SiC-reinforced AA6061 composite. The tool with a pin length of 4.5 mm (plunge depth of 50% into the lower layer thickness) was used for the experiment. The stir zone consisted of fine, equiaxed grains due to dynamic recrystallisation. Variations in grain size, as well as changes in precipitate distribution, size, and morphology, were detected along the build direction. Hardness and tensile strength varied across layers, with the top slice having the greatest values of 104.2 HV and 268.4 MPa, respectively. Notably, the FSAM build demonstrated improved ductility with a maximum of 58.98%, mostly ascribed to fragmentation and partial loss of grain-boundary phases, as well as strong interfaces that delayed necking.","PeriodicalId":18232,"journal":{"name":"Materials Science and Technology","volume":"23 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85431650","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
Die-sinking and rotary EDM surface and subsurface analysis of MoSi2-SiC ceramic composites MoSi2-SiC陶瓷复合材料的模切和旋转电火花加工表面和亚表面分析
IF 1.8 4区 材料科学
Materials Science and Technology Pub Date : 2023-08-01 DOI: 10.1080/02670836.2023.2240103
L. Selvarajan, R. Rajavel, M. Yunus, Rami Alfattani
{"title":"Die-sinking and rotary EDM surface and subsurface analysis of MoSi2-SiC ceramic composites","authors":"L. Selvarajan, R. Rajavel, M. Yunus, Rami Alfattani","doi":"10.1080/02670836.2023.2240103","DOIUrl":"https://doi.org/10.1080/02670836.2023.2240103","url":null,"abstract":"Rotating EDM and die sinking EDM were used to compare the machinability of MoSi2-SiC composites. Surface flaws such as micro cracks, un melted spherical particles, pores, a recast layer and craters following EDM can be attributed to the high hardness and poor toughness of the MoSi2-SiC. Die sinking EDM and rotary EDM, as shown by a comparison of recast layer thicknesses, produce the most uniformly thin white layers, at 92 and 30 µm respectively. The study found that the area fraction yield for porosity ranged from 8.18% to 12.922% when using rotary EDM, but only from 2.33% to 8.10% when using die-sinking EDM. According to the EDAX, the spongy exterior of a composite is the result of a lot of gas being produced. Although the rotational movement of the tool sweeps the resolidified particles away, Rotary EDM resulted in a thinner and less uniform recast layer while still producing good surfaces.","PeriodicalId":18232,"journal":{"name":"Materials Science and Technology","volume":"68 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77148220","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: 3
Investigations of performance characteristics on direct metal laser sintered MONEL K-500 superalloy 直接金属激光烧结MONEL K-500高温合金的性能研究
IF 1.8 4区 材料科学
Materials Science and Technology Pub Date : 2023-07-30 DOI: 10.1080/02670836.2023.2240100
M. Mani, M. Mohanraj, A. Karthikeyan, K. Kalaiselvan
{"title":"Investigations of performance characteristics on direct metal laser sintered MONEL K-500 superalloy","authors":"M. Mani, M. Mohanraj, A. Karthikeyan, K. Kalaiselvan","doi":"10.1080/02670836.2023.2240100","DOIUrl":"https://doi.org/10.1080/02670836.2023.2240100","url":null,"abstract":"MONEL K-500 superalloy is difficult to manufacture precisely in traditional manufacturing processes like casting, forming and machining. The direct metal laser sintering (DMLS) process is one of the best metal additive manufacturing processes used in this work. In this work, Laser Power (LP), Scan Speed (SS), Hatch Distance (HD) and Layer Thickness (LT) are used as DMLS process parameters. L09 Orthogonal array is used for printing the MONEL K-500 metal parts. The performance characteristics like ultimate tensile strength (UTS) and surface toughness (Ra ) are improved by 2% and 17% for the Taguchi optimum parameter levels. Contour plots explained the interaction effects of DMLS process parameters on performance characteristics. The better microstructural characteristics obtained the higher optimum parameter level.","PeriodicalId":18232,"journal":{"name":"Materials Science and Technology","volume":"11 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80149984","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
Effect of element segregation on deformation mechanisms of nano/ultrafine-grained 304 stainless steel 元素偏析对纳米/超细晶304不锈钢变形机制的影响
IF 1.8 4区 材料科学
Materials Science and Technology Pub Date : 2023-07-25 DOI: 10.1080/02670836.2023.2238413
Miaomiao Zhao, Yang Liu, Hongyan Wu, Linxiu Du
{"title":"Effect of element segregation on deformation mechanisms of nano/ultrafine-grained 304 stainless steel","authors":"Miaomiao Zhao, Yang Liu, Hongyan Wu, Linxiu Du","doi":"10.1080/02670836.2023.2238413","DOIUrl":"https://doi.org/10.1080/02670836.2023.2238413","url":null,"abstract":"The effect of Cr and Ni element segregation on austenite stability and deformation mechanisms of nano/ultrafine-grained 304 stainless steel obtained by cryogenic rolling plus annealing treatment was systematically studied. The results showed that the nano/ultrafine-grained steel had a good combination of strength and ductility (yield strength ∼896 MPa, tensile strength ∼977 MPa, and elongation ∼39.6%). According to the findings, the formation of Cr segregation in the body-centered cubic structure at the intersection of austenite grain boundaries and localised austenite grains with low Ni content reduced the austenite stability of the nano/ultrafine-grained steel and promoted the generation of strain-induced martensite during plastic deformation, resulting in the deformation mechanism dominated by the transformation-induced plasticity effect.","PeriodicalId":18232,"journal":{"name":"Materials Science and Technology","volume":"14 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73976087","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
Phase formation and electrical properties of SBNLT ceramics prepared via combustion technique 燃烧法制备SBNLT陶瓷的相形成及电学性能
IF 1.8 4区 材料科学
Materials Science and Technology Pub Date : 2023-07-25 DOI: 10.1080/02670836.2023.2238415
Thanapon Sinkruason, Anupong Luangpangai, N. Charoenthai, A. Rittidech, P. Pulphol, N. Vittayakorn, T. Bongkarn
{"title":"Phase formation and electrical properties of SBNLT ceramics prepared via combustion technique","authors":"Thanapon Sinkruason, Anupong Luangpangai, N. Charoenthai, A. Rittidech, P. Pulphol, N. Vittayakorn, T. Bongkarn","doi":"10.1080/02670836.2023.2238415","DOIUrl":"https://doi.org/10.1080/02670836.2023.2238415","url":null,"abstract":"This report investigates the effect of firing temperatures on the phase formation, microstructure, electrical, and energy storage properties of lead-free Sr0.3(Bi0.7Na0.67Li0.03)0.5TiO3 (SBNLT) ceramics, synthesised by combustion technique. The samples were calcined between 700°C and 900°C for 2 h and sintered between 1100°C and 1200°C for 2 h. The ceramics exhibited coexisting rhombohedral and tetragonal phases, which were confirmed by the Rietveld refinement technique. A morphotropic phase boundary (MPB) of the rhombohedral and tetragonal phases, with a ratio of 49:51, was obtained at the sintering temperature of 1175°C. The highest maximum dielectric constant (ε max = 4667), polarisation (P max = 28.80 µC/cm2) and energy density (W = 0.95 J/cm3), with a breakdown strength of 70 kV/cm, were achieved from the sample sintered at 1175°C.","PeriodicalId":18232,"journal":{"name":"Materials Science and Technology","volume":"15 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79627842","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
A visible light-sensitive argentous oxide/calcium aluminate nanocomposite photocatalyst 一种可见光敏感的氧化银/铝酸钙纳米复合光催化剂
IF 1.8 4区 材料科学
Materials Science and Technology Pub Date : 2023-07-21 DOI: 10.1080/02670836.2023.2237273
Zizhan Sun, Qianmin Cong, Xiaoyu Wang, Jiayi Cui, Z. Cai, C. Fan, L. Pei
{"title":"A visible light-sensitive argentous oxide/calcium aluminate nanocomposite photocatalyst","authors":"Zizhan Sun, Qianmin Cong, Xiaoyu Wang, Jiayi Cui, Z. Cai, C. Fan, L. Pei","doi":"10.1080/02670836.2023.2237273","DOIUrl":"https://doi.org/10.1080/02670836.2023.2237273","url":null,"abstract":"A photo-deposition method was developed to synthesise argentous oxide/calcium aluminate nanocomposites (Ag2O-CAONCS) with orthorhombic Ca5Al6O14 and cubic Ag2O phases. Micro-morphology, micro-structure, optical, and visible-light catalytic properties were investigated via different techniques. Ag2O enhances visible-light absorption performance and decreases the band gap of the Ag2O-CAONCS. About 20 mL crystal violet (CV) dye (10 mgL–1) is totally degraded using 20 mg Ag2O-CAONCS under sunlight irradiation for 20 min. The enhanced photocatalytic activity of the Ag2O-CAONCS towards CV under sunlight irradiation is ascribed to the reduction of the band gap, improvement in visible-light absorption and inhibitation role of carriers recombination by Ag2O. The high, stable visible-light catalytic activity makes Ag2O-CAONCS promising photocatalysts for removing organic pollutants.","PeriodicalId":18232,"journal":{"name":"Materials Science and Technology","volume":"15 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79645337","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
Friction extrusion of AZ91/bioactive glass gradient composite AZ91/生物活性玻璃梯度复合材料的摩擦挤压
IF 1.8 4区 材料科学
Materials Science and Technology Pub Date : 2023-07-17 DOI: 10.1080/02670836.2023.2233261
Pourya Motavallian, S. Rabiee, H. Jamshidi Aval
{"title":"Friction extrusion of AZ91/bioactive glass gradient composite","authors":"Pourya Motavallian, S. Rabiee, H. Jamshidi Aval","doi":"10.1080/02670836.2023.2233261","DOIUrl":"https://doi.org/10.1080/02670836.2023.2233261","url":null,"abstract":"The effect of the pre-friction extrusion microstructure of AZ91 billet on the microstructure, mechanical properties, and corrosion resistance of AZ91-bioactive glass surface composite rods was investigated. The results show that friction extrusion on AZ91 alloy billet with cast microstructure results in agglomerated bioactive glass particles in the composite rod microstructure. Compared to as-cast AZ91 alloy, friction extrusion on AZ91 alloy billet with cast microstructure results in 93% more corrosion resistance. Also, friction extrusion on AZ91 alloy billet with extruded microstructure leads to a gradient AZ91-bioactive glass composite rod with ultimate tensile strength, yield strength, and corrosion resistance of 9, 2, and 74% higher than AZ91 alloy rods, respectively.","PeriodicalId":18232,"journal":{"name":"Materials Science and Technology","volume":"17 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75760751","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
Characterisation of thin α-Al2O3 tribo-coating deposited by low-power gas tunnel plasma spray 低功率气体隧道等离子喷涂沉积α-Al2O3摩擦涂层的表征
IF 1.8 4区 材料科学
Materials Science and Technology Pub Date : 2023-07-13 DOI: 10.1080/02670836.2023.2232986
Zulhelmi Alif Abd Halim, N. Ahmad
{"title":"Characterisation of thin α-Al2O3 tribo-coating deposited by low-power gas tunnel plasma spray","authors":"Zulhelmi Alif Abd Halim, N. Ahmad","doi":"10.1080/02670836.2023.2232986","DOIUrl":"https://doi.org/10.1080/02670836.2023.2232986","url":null,"abstract":"This study used a unique, low-power (2.8 kW) gas tunnel plasma spray and γ-Al2O3 feedstock powder to deposit a thin Al2O3 coating (<2 µm) on mild steel substrate. By optimising the plasma gas flow rate, powder feed rate, spraying time, and distance, a dense and homogeneous Al2O3 coating was obtained at a very high deposition rate (150 nm/s). During plasma coating, the high energy density plasma transforms the γ-Al2O3 powder into a highly crystalline α-Al2O3 as the predominant microstructure of the coating. The performance of the Al2O3 coating on mild steel was then evaluated preliminary using a linear sliding wear test against a chrome-steel ball, with the results indicating an 18–26% reduction in wear when compared to the uncoated substrate.","PeriodicalId":18232,"journal":{"name":"Materials Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89646168","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
Wear and corrosion of CoCrFeNiMnTi x high entropy alloy coatings by laser cladding 激光熔覆CoCrFeNiMnTi x高熵合金涂层的磨损与腐蚀
IF 1.8 4区 材料科学
Materials Science and Technology Pub Date : 2023-07-13 DOI: 10.1080/02670836.2023.2227459
D.C. Wang, C.L. Wu, Shenmin Zhang, C. Zhang, D.X. Zhang, X.Y. Sun
{"title":"Wear and corrosion of CoCrFeNiMnTi x high entropy alloy coatings by laser cladding","authors":"D.C. Wang, C.L. Wu, Shenmin Zhang, C. Zhang, D.X. Zhang, X.Y. Sun","doi":"10.1080/02670836.2023.2227459","DOIUrl":"https://doi.org/10.1080/02670836.2023.2227459","url":null,"abstract":"CoCrFeNiMnTi x (x = 0.5, 1.0, 1.5, 2.0 in atomic ratio) high entropy alloy (HEA) coatings were prepared on 304 stainless steel by laser cladding. Experimental results showed that the CoCrFeNiMnTi x HEAs constituent phase evolved from a single FCC phase for the HEA to FCC + BCC + Intermetallic + Laves phases with the addition of Ti element. The CoCrFeNiMnTi x coatings exhibited an increasing microhardness from 412.42 HV to 573.97 HV. Accompanying the increase in microhardness, the wear resistance was proportional to the hardness of the coating, which met Archard’s relationship. In addition, the corrosion resistance of the CoCrFeNiMnTi x coatings displayed an increased tendency firstly and then decreased with the addition of Ti element. And, the HEA coating with x = 1.0 possessed the highest corrosion resistance as indicated by the lower corrosion current density, high charge transfer resistance and high pitting potential.","PeriodicalId":18232,"journal":{"name":"Materials Science and Technology","volume":"369 1","pages":"2811 - 2823"},"PeriodicalIF":1.8,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80415326","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 evolution of Ag-0.20wt-%Mg-0.19wt-%Ni alloy in under-oxidized condition Ag-0.20wt-%Mg-0.19wt-%Ni合金在欠氧化状态下的组织演变
IF 1.8 4区 材料科学
Materials Science and Technology Pub Date : 2023-07-11 DOI: 10.1080/02670836.2023.2231726
ZiYang Li, Kai Huang, Gang Zhu, Xinlang Zuo, C. Chen
{"title":"Microstructural evolution of Ag-0.20wt-%Mg-0.19wt-%Ni alloy in under-oxidized condition","authors":"ZiYang Li, Kai Huang, Gang Zhu, Xinlang Zuo, C. Chen","doi":"10.1080/02670836.2023.2231726","DOIUrl":"https://doi.org/10.1080/02670836.2023.2231726","url":null,"abstract":"The under-oxidized condition (insufficient internal oxidation) for Ag-0.20Mg-0.19Ni (in wt-%) alloy was conducted at 650°C for 2 h, and the microstructural evolution in the alloy was investigated. The average grain size of the oxidized region and the unoxidized region are 3.82 µm and 3.86 m, respectively. The results suggest that the oxides enriched at grain boundaries do not hinder grain growth in the under-oxidized condition. The hardness of the oxidized region increases significantly, while the hardness of the unoxidized region decreases due to recrystallization. Both the number and the distribution area of MgO precipitates at the grain boundaries are increased with the internal oxidation time. Additionally, small MgO precipitates merge to form larger oxide particles with the internal oxidation time.","PeriodicalId":18232,"journal":{"name":"Materials Science and Technology","volume":"80 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87247381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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