Transactions of The Indian Institute of Metals最新文献_第2页

Feasible Beneficiation Studies to Enrich Grade and Recovery by Adopting Grinding Followed by Gravity and Magnetic Separation 采用磨矿后重力和磁力分离提高品位和回收率的可行性选矿研究

IF 1.6 4区材料科学

Transactions of The Indian Institute of Metals Pub Date : 2024-09-04 DOI: 10.1007/s12666-024-03445-2

D. Vijaya Mitra, Kevin Jason, Karthik Parmeswaran, T. Uma Devi, Rameswar Sah

{"title":"Feasible Beneficiation Studies to Enrich Grade and Recovery by Adopting Grinding Followed by Gravity and Magnetic Separation","authors":"D. Vijaya Mitra, Kevin Jason, Karthik Parmeswaran, T. Uma Devi, Rameswar Sah","doi":"10.1007/s12666-024-03445-2","DOIUrl":"https://doi.org/10.1007/s12666-024-03445-2","url":null,"abstract":"The recovery of Fe from an oversized sample in a spiral classifier upgrades a 55% Fe to 59% Fe output in a size range (− 3 mm + 150 μm). The output was subjected to fine grinding making it suitable for pellet plant. The ground fine ore was subjected to 2 processing routes: gravity concentration followed by magnetic separation. The tailing after gravity separation was subjected to magnetic separation with varying Gauss. One set of Fe enrichment was achieved in the concentrate after gravity separation and in the mag part of magnetic separator. The overall concentrate was 61.38% Fe, 4.53% SiO2, and 2.97% Al2O3, with an yield of 83.45%. The Fe recovery was 86.27%. Alternately, fine ore was directly subjected to magnetic separation at 8000 Gauss, enriching the ore to 65.12%Fe with 48.15% yield which corresponds to 52.81% Fe. Thus, gravity concentration followed by magnetic separation gave higher grade, yield and Fe recovery.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":23224,"journal":{"name":"Transactions of The Indian Institute of Metals","volume":"72 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142206245","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}

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Influence of the Proportions of Dry Quenched Coke and Wet Quenched Coke Used on the Lining Temperature of a Blast Furnace Hearth 干淬焦和湿淬焦的使用比例对高炉炉衬温度的影响

IF 1.6 4区材料科学

Transactions of The Indian Institute of Metals Pub Date : 2024-09-04 DOI: 10.1007/s12666-024-03428-3

Peng-bo Liu, Shu-sen Cheng, Zhao Liu

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Numerical Study of Liquid Metal 3D Printing Process: Shape Morphology Evolution, Solidification, and Formation of Defects 液态金属三维打印过程的数值研究：形状形态演变、凝固和缺陷形成

IF 1.6 4区材料科学

Transactions of The Indian Institute of Metals Pub Date : 2024-09-04 DOI: 10.1007/s12666-024-03458-x

K. Yadav, A. Kumar

{"title":"Numerical Study of Liquid Metal 3D Printing Process: Shape Morphology Evolution, Solidification, and Formation of Defects","authors":"K. Yadav, A. Kumar","doi":"10.1007/s12666-024-03458-x","DOIUrl":"https://doi.org/10.1007/s12666-024-03458-x","url":null,"abstract":"The utilization of uniformly deposited metal droplets has attracted significant attention for diverse applications, such as rapid prototyping and manufacturing. Achieving flawless aluminum structures through droplet-based liquid metal 3D printing (LM3DP) is critical in aerospace and electronics. However, challenges persist in eliminating defects during deposition due to constrained temperature ranges and complex impact dynamics. This study introduces a 3D computational model using a volume of fluid technique to analyze the consecutive deposition of molten aluminum droplets on a heated substrate, protected by nitrogen gas. Simulations reproduce droplet shapes in agreement with experimental results. Molten aluminum droplets solidify layer by layer continuously in an upward direction due to high thermal conductivity, forming surface ripples. L-shaped ripples emerge on neighboring droplets due to combined effects of solidification and oscillation, which involve alternating spreading and recoiling of the droplets leading to defects like cold laps, whereas bottom-hole defects occur due to inadequate metal filling with the substrate. This investigation systematically explores shape, defect formation, temperature, solid fraction, and velocity evolution during continuous deposition. Insights establish a fundamental basis for LM3DP technology.","PeriodicalId":23224,"journal":{"name":"Transactions of The Indian Institute of Metals","volume":"183 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142206243","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 of Welding Parameters on Austenitic Stainless Steel Pipe Weldments Produced by Friction Stir Welding 焊接参数对摩擦搅拌焊奥氏体不锈钢管焊接件的影响

IF 1.6 4区材料科学

Transactions of The Indian Institute of Metals Pub Date : 2024-09-04 DOI: 10.1007/s12666-024-03457-y

Suresh Gain, Sanjib Kumar Acharyya, Dipankar Sanyal, Suman Kalyan Das

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On the Heat-Affected Zone Role for Mechanical Properties of Structural-Steel MIG and CMT–MIG Weldments 论热影响区对结构钢 MIG 焊缝和 CMT-MIG 焊缝机械性能的作用

IF 1.6 4区材料科学

Transactions of The Indian Institute of Metals Pub Date : 2024-09-03 DOI: 10.1007/s12666-024-03460-3

Akhil Khajuria, Anurag Misra, S. Shiva

引用次数: 0

A Study on Microstructural Evolution and Corrosion Behavior of Ti36-Al16-V16-Fe16-Cr16 High-Entropy Alloy Fabricated via Spark Plasma Sintering Technology 通过火花等离子烧结技术制造的 Ti36-Al16-V16-Fe16-Cr16 高熵合金的微观结构演变和腐蚀行为研究

IF 1.6 4区材料科学

Transactions of The Indian Institute of Metals Pub Date : 2024-09-03 DOI: 10.1007/s12666-024-03446-1

Uwa O. Uyor, Abimbola P. I. Popoola, Olawale M. Popoola

引用次数: 0

The Al2O3–ZrB2 Nanocomposite Synthesis using Mechanically Assisted SHS: The Effects of Mechanical Activation and Al2O3 Diluent 利用机械辅助 SHS 合成 Al2O3-ZrB2 纳米复合材料：机械活化和 Al2O3 稀释剂的影响

IF 1.6 4区材料科学

Transactions of The Indian Institute of Metals Pub Date : 2024-08-31 DOI: 10.1007/s12666-024-03395-9

Dinah Pezeshki, Mohammad Rajabi, Mahmoud Rabiei, Gholam Reza Khayati, Fatemeh Ahmadpoor

{"title":"The Al2O3–ZrB2 Nanocomposite Synthesis using Mechanically Assisted SHS: The Effects of Mechanical Activation and Al2O3 Diluent","authors":"Dinah Pezeshki, Mohammad Rajabi, Mahmoud Rabiei, Gholam Reza Khayati, Fatemeh Ahmadpoor","doi":"10.1007/s12666-024-03395-9","DOIUrl":"https://doi.org/10.1007/s12666-024-03395-9","url":null,"abstract":"ZrB2 stands out among ultra-high-temperature ceramics due to its exceptional thermal resistance, chemical stability, high hardness, high electrical and thermal conductivity, and low density. In this work, the Al2O3–ZrB2 nanocomposite was fabricated using mechanically activated self-propagating high-temperature synthesis. The effect of mechanical activation, using three different milling times (i.e., 0, 3, and 5 h), and addition of Al2O3 as a reaction diluent on Al2O3–ZrB2 nanocomposite properties were investigated. The combustion behavior of different powder mixtures was evaluated using DSC. The phase analysis and microstructure of synthesized samples were investigated by X-ray diffraction (XRD) and scanning electron microscopy. Results indicated that 5 h ball milling of initial powder mixture synthesis caused the combustion reaction to start at about 650 °C which was lower than that of the unmilled sample (1140 °C). The microstructure of pre-milled samples contained a uniform distribution of ZrB2 particles in the Al2O3 matrix. The addition of Al2O3 to the initial mixture (up to a 6 wt.%) increased the amount of heat energy released upon heating the sample. The DSC and XRD results showed that the sample milled for 3 h, in which 6 wt.% Al2O3 was added to the mixtures had the most tendency to combustion and the most purity of the final microstructure. Further addition of Al2O3 up to 10 wt.% reduced the system’s ability to perform self-propagating high-temperature synthesis.","PeriodicalId":23224,"journal":{"name":"Transactions of The Indian Institute of Metals","volume":"4 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142206247","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

An Analytical Review on the Degradation Mechanisms and Magnesium Alloy Protective Coatings in Biomedical Applications 生物医学应用中的降解机制和镁合金保护涂层分析综述

IF 1.6 4区材料科学

Transactions of The Indian Institute of Metals Pub Date : 2024-08-28 DOI: 10.1007/s12666-024-03424-7

C. Vinothkumar, G. Rajyalakshmi

{"title":"An Analytical Review on the Degradation Mechanisms and Magnesium Alloy Protective Coatings in Biomedical Applications","authors":"C. Vinothkumar, G. Rajyalakshmi","doi":"10.1007/s12666-024-03424-7","DOIUrl":"https://doi.org/10.1007/s12666-024-03424-7","url":null,"abstract":"Unique characteristics such as biocompatibility, degradation capability, and mechanical properties have positioned magnesium alloys as highly favorable choices for use in various medical devices and implants. However, their rapid degradation and associated challenges have limited their widespread use. This study conducts a thorough analysis into the corrosion behavior of magnesium alloys when open to various coatings, using both in vitro and in vivo environments. The review focuses on understanding the degradation mechanisms, factors influencing corrosion, and the resulting consequences. Additionally, it explores the composition of coatings and metals as effective means to control degradation, along with surface treatment and corrosion management methods. To enhance the degrading behavior, bioactivity, and biocompatibility of magnesium alloys, a multistep approach involving coating techniques such as HA coating, LDH, CaP, and titanium dioxide coating is recommended. These coatings have shown significant potential in improving the exterior properties of Mg alloys. Furthermore, using multifunctional coatings is extremely effective in creating secure and bioactive substrates for the application of biodegradable implants, demonstrating significant potential in the field of biomedical engineering.","PeriodicalId":23224,"journal":{"name":"Transactions of The Indian Institute of Metals","volume":"13 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142206248","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

Application of Digital Image Correlation to Small Punch Test for Determination of Stress–Strain Properties 将数字图像相关性应用于确定应力-应变特性的小型冲压试验

IF 1.6 4区材料科学

Transactions of The Indian Institute of Metals Pub Date : 2024-08-27 DOI: 10.1007/s12666-024-03442-5

Abdul Rahman Shaik, Aishwary Vardhan Pandey, V. Karthik, Ashish Kolhatkar, G. Abhishek, R. Divakar

{"title":"Application of Digital Image Correlation to Small Punch Test for Determination of Stress–Strain Properties","authors":"Abdul Rahman Shaik, Aishwary Vardhan Pandey, V. Karthik, Ashish Kolhatkar, G. Abhishek, R. Divakar","doi":"10.1007/s12666-024-03442-5","DOIUrl":"https://doi.org/10.1007/s12666-024-03442-5","url":null,"abstract":"The analysis of the small punch test is based on the force on the moving punch and the deflection data acquired at a single point of the specimen bottom. However, the spatial distribution of stress and strain at any given instant is non-uniform and its variations with increase in punch penetration are quite complex. In this work, the digital image correlation (DIC) technique is integrated with small punch test for in-situ full field strain measurement in the bottom surface of the specimen. The DIC results reveal that with the progression of deformation, the peak equivalent plastic strain at the bottom surface shifts from the center of the specimen to a characteristic radial location, where the strain rapidly builds up and concentrates leading to instability and cracking. Combining DIC-based strain results with finite element model-based stress estimation at the characteristic radial location, a methodology for determining the stress–strain curve from small punch test is formulated and the outcomes are compared with tensile test results for four different metallic alloys.","PeriodicalId":23224,"journal":{"name":"Transactions of The Indian Institute of Metals","volume":"21 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226390","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

Synthesis and Characterization of the La0.85Ag0.15Mn0.8Fe0.2O3 Ceramic for Some Device Application 用于某些器件应用的 La0.85Ag0.15Mn0.8Fe0.2O3 陶瓷的合成与特性分析

IF 1.6 4区材料科学

Transactions of The Indian Institute of Metals Pub Date : 2024-08-25 DOI: 10.1007/s12666-024-03440-7

Adwit Prasad Sahu, S. K. Parida

{"title":"Synthesis and Characterization of the La0.85Ag0.15Mn0.8Fe0.2O3 Ceramic for Some Device Application","authors":"Adwit Prasad Sahu, S. K. Parida","doi":"10.1007/s12666-024-03440-7","DOIUrl":"https://doi.org/10.1007/s12666-024-03440-7","url":null,"abstract":"We present the synthesis (solid-state reaction) and characterization of an iron-modified lanthanum silver manganate ceramic, La0.85Ag0.15Mn0.8Fe0.2O3. XRD investigation at room temperature using Rietveld refinement indicates rhombohedral crystal symmetry (#R (overline{3}) c) with a crystallite size of 30 nm. Scanning electron micrographs demonstrate a homogeneous distribution of well-grown grains with defined grain boundaries, which is critical for understanding the conductivity mechanism. The compactness of the grains verifies the creation of a dense sample, which could be one of the factors contributing to the observed physical attributes. The purity and uniform distribution of all constituent elements were confirmed using the energy-dispersive X-ray analysis spectrum and color mapping, respectively. The Maxwell–Wagner polarization effect is observable at low frequencies. The analysis of impedance and modulus plots indicates the existence of a negative temperature coefficient of resistance and a non-Debye relaxation process, respectively. The existence of a thermally activated conduction mechanism in the investigated sample is supported by the analysis of AC conductivity as a function of temperature and frequency. The semiconducting nature is supported by the existence of semicircular arcs in both the Nyquist’s and Cole–Cole plots, suggesting that they would be good candidates for energy storage devices. The presence of NTC thermistor character for temperature sensor applications is suggested by the resistance versus temperature investigation.","PeriodicalId":23224,"journal":{"name":"Transactions of The Indian Institute of Metals","volume":"184 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142206250","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