Friction stir processing (FSP) of Al6061-SiC-Graphite hybrid composites is studied in detail via force analysis, spectroscopic, microstructural and indentation studies. Effect various tool rotational speeds was assessed, the axial variation monitored. The presence graphite as a reinforcement influences fluctuations due to its flaky nature high thermal conductivity. Variation microstructure at different speed using scanning electron microscope. has significant influence on area FSP zone,...

Friction stir welding (FSW) is a growing technology in the manufacturing industries because of its numerous contributions involving light-weight materials such as aluminium and magnesium. The process has been recently implemented for joining thermoplastics. present paper dedicated to investigate application FSW join article divided into two parts; first part outlines importance thermoplastics through their wide applications principle described. A detailed literature study regarding effect...

The present study aims to enhance the strength of friction stir lap welded aluminum alloys by using an interlayer graphene nanoplatelets (GNPs) at weld interface. With GNP interlayer, and percentage elongation increased 121 53%, respectively, as compared without interlayer. also changes mode fracture from brittle in ductile mode. Grain size with decreased ~38% equated GNP. height hook defect (HD) cold (CLD) 26% 41%, In bottom top plate on retreating side acts potential site for due presence...

Abstract The feasibility of using argon‐atomized QT 17‐4+ stainless steel powder for directed energy deposition (DED) additive manufacturing is studied. a novel martensitic designed based on the compositional modification standard 17‐4 precipitation‐hardened (PH) steel. This aims to achieve better mechanical properties as‐deposited components compared heat‐treated wrought 17‐4PH In this study, used DED, first time. influence laser power, scan speed, feed rate, and hatch overlap density...

Friction stir alloying is primarily employed for the fabrication of surface composite to improve properties like hardness, wear resistance, and corrosion resistance without significantly affecting bulk alloy. The present study demonstrates novel method aluminum-graphene nanoplatelets by using friction alloying. Here, novelty shown through graphene incorporation in zone. For this purpose, a channel fabricated on cross-sectional aluminum plate filled with nanoplatelets. It then covered another...

Directed energy deposition (DED) is a crucial branch of additive manufacturing (AM), performing repairs, cladding, and processing multi-material components. 316L austenitic stainless steel widely used in applications such as the food, aerospace, automotive, marine, energy, biomedical, nuclear reactor industries. Nevertheless, there need for process parameter optimization comprehensive understanding individual complex synergistic effects parameters on geometry, microstructure, properties...

Aluminium-based hybrid metal grid composites (MMC) are extensively utilized in automobile applications (engine cylinders, pistons, etc.) as they exhibit a fantastic blend of properties. Here, detailed study nano-mechanical, electrochemical and Raman spectroscopic behavior friction stir processed Al6061-SiC-graphite surface composite is presented. The effect various tool rotational speeds was evaluated along with the monitoring variation axial force. Microstructural changes studied by using...

A new sintering method is developed for fabricating large, 3-dimensional, open-cell metal foam parts using milling or friction stir welding machines. Temperature and pressure required are achieved by plunging moving a rotating tool against sacrificial top sheet in the setup. Predefined paths used to compress sinter powder mixture die cavity. In this paper, was fabricate copper plates dissolution process (SDP). Samples with different porosities were fabricated. Produced foams have uniform...

As part of sustainable development goals seven and thirteen, electric vehicles (EV) are taking over internal combustion engine by using battery packs as their power source. One major concern for the EV sector is charging time lithium-ion (Li-ion) batteries. Advancing pack industry will benefit economically environmentally creating pores on graphene anode NaCl activation method, eventually leading to high performance efficiency in Li-ion Accordingly, present study focused fabricating novel...

Electrolytic brass powder with nano-sized features was sintered using a newly developed friction sintering process. The initially pressed 5-ton load for 1 min at room temperature, in hydraulic press, to convert it into green pellet. Green pellets were of 16 mm diameter and 14 height. process is energy efficient, quick, economical, green, easy use. also ensures release parts. Here, placed thick aluminum plates through holes. . Applied axial load, tool rpm, decide the rate heating. In this...

Dendritic electrolytic copper powder was sintered using a newly developed friction sintering process. Green pellets of 14 mm height and 16 diameter were prepared at room temperature with 5-ton load 60 seconds holding time. The rapid, cost-effective, energy efficient, green process that allows for easy quick removal products. An aluminum plate thickness 16.1 through hole used to hold during sintering. Frictional heat pressure applied on top rotating 18 diameter, flat shoulder, WC tool....

The abundantly available mica flakes were added in raw materials to manufacture pottery Central Peninsular India during the early Iron Age (700-300 BCE) for storage and glittering. micaceous potsherds from excavated megalithic site of Nagpur studied their composition, manufacturing techniques, microstructural features, microbial colonization, estimation firing temperature. analytical techniques used micro-XRF, FTIR, XRD, FEG-SEM, mercury porosimetry (MIP), thermal analysis. XRF SEM-EDX data...

Abstract A novel friction sintering process is used to obtain large copper foam plates using and dissolution process. The ensures easy quick removal of the sintered product. Heat pressure generated by downfeed rotating tungsten tool pressed against a “top plate” results in solid-state powder particles. sized part was obtained providing scan path for covering “die” containing Cu-NaCl mixture. Note that no pre-compression done before start Compaction both happen during course sintering....