Metallurgical and Materials Transactions A最新文献_第7页

Correlation Between Elastic Properties and Phase Transformation of Zr50Pd50−xRux High-Temperature Shape Memory Alloys Designed by DFT 通过 DFT 设计的 Zr50Pd50-xRux 高温形状记忆合金的弹性特性与相变之间的相关性

Metallurgical and Materials Transactions A Pub Date : 2024-07-13 DOI: 10.1007/s11661-024-07502-9

Yu-Nien Shen, D. Nkomo, S. Matsunaga, M. J. Phasha, Y. Yamabe-Mitarai

引用次数: 0

Strain Hardening in Dilute Binary Al–Cu, Al–Zn, and Al–Mn Alloys: Experiment and Modeling 稀铝铜、铝锌和铝锰二元合金中的应变硬化：实验与建模

Metallurgical and Materials Transactions A Pub Date : 2024-07-13 DOI: 10.1007/s11661-024-07475-9

Bernhard Viernstein, Laszlo Solyom, Ernst Kozeschnik

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Refinement Mechanism of the Hypoeutectic Al–7Si Alloy by Adding a Novel La-Rich Rare-Earth Grain Refiner 通过添加新型富 La 稀土晶粒细化剂细化次共晶 Al-7Si 合金的机制

Metallurgical and Materials Transactions A Pub Date : 2024-07-11 DOI: 10.1007/s11661-024-07510-9

Wanwu Ding, Mei Xu, Lumin Gou, Lingxia Li, Juan Ma, Jiazhi An, Xuefeng Lu, Xiaochun Liu, Xiaochun Li

{"title":"Refinement Mechanism of the Hypoeutectic Al–7Si Alloy by Adding a Novel La-Rich Rare-Earth Grain Refiner","authors":"Wanwu Ding, Mei Xu, Lumin Gou, Lingxia Li, Juan Ma, Jiazhi An, Xuefeng Lu, Xiaochun Liu, Xiaochun Li","doi":"10.1007/s11661-024-07510-9","DOIUrl":"https://doi.org/10.1007/s11661-024-07510-9","url":null,"abstract":"Refining the grain size of the as-casted hypoeutectic Al–Si alloys is an established technique for improving their mechanical properties. This work is based on the development of a novel La-riched grain refiner, i.e., Al–3Ti–4.35La, which exhibited remarkable efficiency for grain refinement from 1.46 mm into ~ 0.1 mm (with 0.2 wt pct of the refiner), increasing both tensile strength, yield strength, elongation and hardness from 154.3 MPa, 64.5 MP, 5.83 pct, and 54.8 HV to 178.3 MPa (an enhancement of 15.6 pct), 77.5 MPa(an enhancement of 20.2 pct), 12.02 pct (an enhancement of 106.0 pct), and 58.4 HV (an increase of 6.6 pct), respectively. The in situ formation of the Ti2Al20La phase served as the nucleus for α-Al during solidification. The segregation of trace Si and La atoms at the interface indicates their chemical affinity with a relatively lower energy configuration, which is consistent with the first-principles calculations. The results of this study offer an innovative approach for attaining considerable grain refinement in Al–7Si alloys by constructing rare-earth grain refiners.","PeriodicalId":18504,"journal":{"name":"Metallurgical and Materials Transactions A","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141612909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructure Prediction from Smooth Particle Hydrodynamics Process Simulations of Additive Friction Stir Deposition 通过平滑粒子流体力学模拟添加剂摩擦搅拌沉积过程预测微观结构

Metallurgical and Materials Transactions A Pub Date : 2024-07-10 DOI: 10.1007/s11661-024-07499-1

N. I. Palya, K. Fraser, N. Zhu, J. B. Hoarston, K. Doherty, P. G. Allison, J. B. Jordon

{"title":"Microstructure Prediction from Smooth Particle Hydrodynamics Process Simulations of Additive Friction Stir Deposition","authors":"N. I. Palya, K. Fraser, N. Zhu, J. B. Hoarston, K. Doherty, P. G. Allison, J. B. Jordon","doi":"10.1007/s11661-024-07499-1","DOIUrl":"https://doi.org/10.1007/s11661-024-07499-1","url":null,"abstract":"Additive friction stir deposition (AFSD) is a solid-state additive manufacturing method that exploits frictional heat generation and severe plastic deformation to achieve metallurgical bonding during layer-by-layer deposition. AFSD can be used for additive manufacturing of bulk components or repair of aluminum alloys as the sub-solidus processing temperatures can be beneficial over fusion-based alternatives. Due to dynamic recrystallization during AFSD processing, significant evolution of the microstructure can occur which can lead to substantial gradients in grain and intermetallic particle size. In this study, we present a history dependent modeling framework to predict the microstructure evolution in the AFSD process through mesh-free numerical simulations. In this work, experimentally quantified relationships between grain and intermetallic particle size as well as temperatures and strain rates were incorporated into a smooth particle hydrodynamic simulation framework to predict the microstructure after AFSD processing. The SPH simulation approach showed reasonable agreement between the model predictions and experimental results of grain and intermetallic particle size distribution after AFSD processing.","PeriodicalId":18504,"journal":{"name":"Metallurgical and Materials Transactions A","volume":"692 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141567002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of Thermomechanical Coupling in Inconel 718 at Homologous Temperatures of 0.2 and 0.5 同源温度为 0.2 和 0.5 时 Inconel 718 的热机械耦合研究

Metallurgical and Materials Transactions A Pub Date : 2024-07-09 DOI: 10.1007/s11661-024-07492-8

Owen Kingstedt, Anthony Lew, Mason Pratt, Seyyed-Danial Salehi, Sameer Rao

{"title":"Investigation of Thermomechanical Coupling in Inconel 718 at Homologous Temperatures of 0.2 and 0.5","authors":"Owen Kingstedt, Anthony Lew, Mason Pratt, Seyyed-Danial Salehi, Sameer Rao","doi":"10.1007/s11661-024-07492-8","DOIUrl":"https://doi.org/10.1007/s11661-024-07492-8","url":null,"abstract":"A study was conducted to investigate the temperature dependence of thermomechanical coupling in Inconel 718 (IN718). IN718 was selected as a model material due to deformation being predominantly accommodated by planar slip. Split-Hopkinson (or Kolsky) tension bar experiments were conducted at a nominal strain rate of 750 s(^{-1}) at room temperature and (450,^{circ })C, representing homologous temperatures ((T_H = T/T_{melt})) of (T_H=0.2) and (T_H=0.5), respectively. During deformation, specimen gauge sections were imaged with a high-speed infrared camera. Using one-dimensional wave analysis, the transient heat conduction equation, and temperature-dependent specific heat capacity values, the temperature rise as a function of plastic strain was used to calculate plastic work, thermal work, and the plastic work to heat conversion efficiency, commonly known as the Taylor–Quinney coefficient (TQC). As expected, a significant reduction in plastic work was observed during testing at elevated temperatures. The temperature rise due to plastic deformation was observed to be lower at room temperature compared to elevated temperature experiments. It is reported here for the first time that the TQC is a temperature-sensitive quantity. At (T_H=0.5), a nearly complete conversion of plastic work to heat was observed (TQC (approx,1.0)). Under ambient conditions of (T_H = 0.2), a much lower efficiency TQC (approx,0.4) was observed.","PeriodicalId":18504,"journal":{"name":"Metallurgical and Materials Transactions A","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141566997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Chemical and Phase Composition of Ni–P-Based Alloy Powders on the Corrosion Behavior in Various Environments Ni-P 基合金粉末的化学成分和相组成对各种环境中腐蚀行为的影响

Metallurgical and Materials Transactions A Pub Date : 2024-07-08 DOI: 10.1007/s11661-024-07501-w

Milica M. Vasić, Naděžda Pizúrová, Tomáš Žák, Dragica M. Minić

{"title":"Influence of Chemical and Phase Composition of Ni–P-Based Alloy Powders on the Corrosion Behavior in Various Environments","authors":"Milica M. Vasić, Naděžda Pizúrová, Tomáš Žák, Dragica M. Minić","doi":"10.1007/s11661-024-07501-w","DOIUrl":"https://doi.org/10.1007/s11661-024-07501-w","url":null,"abstract":"The as-prepared and thermally treated Ni–P and Ni–Fe–P alloy powders obtained by chemical reduction were studied regarding the microstructure, as an important factor affecting the functional properties of the materials. Also, the influence of the microstructure and thermally induced transformations of the studied materials on the corrosion behavior in neutral, alkaline, and acidic media is presented. For a detailed study of the mentioned phenomena, different structural and electrochemical techniques were used, including XRD, TEM, DTA, potentiodynamic, and EIS measurements. The composition and microstructure of the studied alloy powders were shown to be dependent on the reactant ratio and thermal history of the material. Small amounts of crystalline phases present in the as-prepared powders, as well as crystalline phases formed during crystallization, included some or all of the following phases: Ni, Ni3P, and Ni12P5. It was shown that the addition of small amount of Fe into the Ni–P powder alloy considerably affects the microstructure and thermal stability of the material, having beneficial effect on the formation of protective oxide layers and thus on the corrosion resistance in chloride environments.","PeriodicalId":18504,"journal":{"name":"Metallurgical and Materials Transactions A","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141567001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructure and Mechanical Properties of Al–Zn–Mg–Ni–Fe Alloy Processed by Hot Extrusion and Subsequent Radial Shear Rolling 通过热挤压和随后的径向剪切轧制加工的 Al-Zn-Mg-Ni-Fe 合金的微观结构和力学性能

Metallurgical and Materials Transactions A Pub Date : 2024-07-08 DOI: 10.1007/s11661-024-07505-6

Yu. V. Gamin, T. K. Akopyan, A. V. Skugorev, X. D. Nguyen, M. B. Savonkin, A. S. Prosviryakov, A. S. Fortuna, V. V. Cheverikin

{"title":"Microstructure and Mechanical Properties of Al–Zn–Mg–Ni–Fe Alloy Processed by Hot Extrusion and Subsequent Radial Shear Rolling","authors":"Yu. V. Gamin, T. K. Akopyan, A. V. Skugorev, X. D. Nguyen, M. B. Savonkin, A. S. Prosviryakov, A. S. Fortuna, V. V. Cheverikin","doi":"10.1007/s11661-024-07505-6","DOIUrl":"https://doi.org/10.1007/s11661-024-07505-6","url":null,"abstract":"The evolution of the microstructure and mechanical properties of Al–5.76Zn–1.77Mg–0.33Fe−0.45Ni (wt pct) alloy bars produced by hot extrusion (HE) followed by radial shear rolling (RSR) and heat treatment (quenching + aging) has been studied. The results show that the suggested thermomechanical treatment (TMT) allows one to produce a specific type of microstructure. HE provides for defect-free deformation of the initial cast structure, while RSR leads to the formation of a fine microstructure due to unique temperature–strain conditions. During deformation, insoluble Al9NiFe eutectic phase crystals are refined to a size of about 100 nm. These crystals are localized along the grain and subgrain boundaries and act as effective barriers to the migration of high-angle and low-angle grain boundaries. As a result, the formation of a deformed structure with an extensive network of low-angle grain boundaries (especially in the near-surface region where the equivalent strain is about 15) is observed in the central part and in the near-surface region of the obtained bars. The formation of a structure with an average characteristic subgrain size (~ 2 to 3 μm) comparable to that of grains produced by severe plastic deformation processes provides for a favorable combination of mechanical properties (UTS ~ 416 MPa, YS ~ 293 MPa, δ ~ 8.4 pct), which are comparable to the mechanical properties of a similar alloy after equal channel angular pressing.","PeriodicalId":18504,"journal":{"name":"Metallurgical and Materials Transactions A","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141566999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Determination of the Isothermal Sections and Liquidus Surface Projection of the Co–V–Zr System Co-V-Zr 系统等温截面和液面投影的实验测定

Metallurgical and Materials Transactions A Pub Date : 2024-07-06 DOI: 10.1007/s11661-024-07497-3

Jiaxing Sun, Cuiping Guo, Changrong Li, Zhenmin Du

{"title":"Experimental Determination of the Isothermal Sections and Liquidus Surface Projection of the Co–V–Zr System","authors":"Jiaxing Sun, Cuiping Guo, Changrong Li, Zhenmin Du","doi":"10.1007/s11661-024-07497-3","DOIUrl":"https://doi.org/10.1007/s11661-024-07497-3","url":null,"abstract":"The construction of the experimental liquidus surface projection and isothermal sections of the Co–V–Zr ternary system was based on the analyses of solidification microstructures and phase constituents. A new compound τ with Cr0.5Fe1.5Zr-type was identified, and the measured composition range of Zr in τ was ∼ 28.6 to 57.3 at. pct and 32.9 to 56.8 at. pct at 1100 °C and 1000 °C, respectively. The liquidus surface projection identified nine primary solidification areas, while two primary solidification areas were inferred from binary diagrams. Moreover, eight and ten three-phase equilibria were determined at 1100 °C and 1000 °C, respectively. The measured solubility of V in Co23Zr6, Co2Zr and CoZr reached ~ 0.5, 7.6 and 4.1 at. pct at 1100 °C. Meanwhile, the solubility of V in Co23Zr6, Co2Zr, CoZr and CoZr2 was measured to be ~ 0.4, 7.6, 1.6 and 3.6 at. pct at 1000 °C. The solubility of Zr in Co2V3 was ~ 3.6 at. pct at 1100 °C, while the solubility of Zr in Co3V, Co2V3 and CoV3 was determined ~ 1.3, 3.0 and 4.5 at. pct at 1000 °C, respectively. The experimental data can help improve the thermodynamic parameters of the Co–V–Zr system and advance the development of databases for multi-component Co-based superalloys.","PeriodicalId":18504,"journal":{"name":"Metallurgical and Materials Transactions A","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141567178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructure-Superplastic Properties Relationship and Deformation Mechanism in a Novel Dual-Phase Medium Mn Steel: The Effect of Microstructure Anisotropy and Texture 新型双相中锰钢的显微组织-超塑性关系和变形机理：显微组织各向异性和纹理的影响

Metallurgical and Materials Transactions A Pub Date : 2024-07-05 DOI: 10.1007/s11661-024-07493-7

Haijun Pan, Chaofan Wei, Shunhu Zhang, Wenhao Zhou, Zhiqiang Wu, Lin Liu, Yi Zhao

{"title":"Microstructure-Superplastic Properties Relationship and Deformation Mechanism in a Novel Dual-Phase Medium Mn Steel: The Effect of Microstructure Anisotropy and Texture","authors":"Haijun Pan, Chaofan Wei, Shunhu Zhang, Wenhao Zhou, Zhiqiang Wu, Lin Liu, Yi Zhao","doi":"10.1007/s11661-024-07493-7","DOIUrl":"https://doi.org/10.1007/s11661-024-07493-7","url":null,"abstract":"In this paper, the tensile properties, texture evolution, and deformation anisotropy of a cold-rolled Fe−0.3C–6.86Mn–3.5Al steel during superplastic deformation at 650 °C–750 °C and 0.25 × 10−3 s−1− 4 × 10−3 s−1 were studied. In particular, under 750 °C and 1 × 10−3 s−1, the anisotropic microstructure evolution and texture characteristics were measured using EBSD. The results indicate that Medium Mn steel (MMS) sheets exhibit significant anisotropy under high tensile stress. The transverse direction (TD) specimens exhibit the highest peak strength of 145 MPa, and rolling direction (RD) specimens exhibit the highest elongation of 1295 pct. The plastic anisotropy r value of the RD sample varied more significantly than that of the TD sample. When the RD sample fractures, the aspect ratio reaches its minimum value (1.52), and ellipse fitting angle (θ) distributes from 0 to 90 degree and from 180 to 90 degree, which indicates that a large number of grains have undergone rotation.","PeriodicalId":18504,"journal":{"name":"Metallurgical and Materials Transactions A","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141567000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Study on the Corrosion Behavior of Ti-Containing Weathering Steel in a Simulated Marine Environment 含钛耐候钢在模拟海洋环境中的腐蚀行为研究

Metallurgical and Materials Transactions A Pub Date : 2024-07-03 DOI: 10.1007/s11661-024-07494-6

Jie Hu, Chuang-wei Wang, Zheng-rong Li, Han Zeng, Yi-cong Lei, Zheng-hua Tang

引用次数: 0