Vacuum Induction Furnace Melting Technology for High-Temperature Composite Material Based on Nb–Si System

Min, P. G.; Vadeev, V. E.

doi:10.1007/s11015-019-00902-y

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…In vacuum induction melting process, the graphite crucible has been considered for fabricating thecomposite. It has been used to fabricate composite with homogeneous chemical compositionand low impurity content 21 . High purity of metal can be achieved by employing vacuum induction melting method.…”

Section: Fabrication Of Compositementioning

confidence: 99%

Evaluation of Abrasive WearRate and Machining Behaviors of Synthesized Nitinol Composite

Sridhar¹,

Marichamy

Subbiah³

2022

Mat. Res.

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The present investigation deals with wear and machining behaviors of manufacture nitinol composite through Vacuum Induction Melting (VIM). The major composition of nickel and titanium was reinforced with tungsten carbide (WC). Scanning Electron Microscopy (SEM) was employed to investigate the morphology of the synthesized nitinol composite. For investigating the topography of the surface of the nitinol composite was analyzed by scanning force microscopy or atomic force microscopy. Spark erosion machining has been applied to explore the machining behavior of the nitinol composite. Abrasive Wear Rate (AWR) is evaluated by using abrasion tester. Machining and wear parameters are optimized by applying taguchi approach. The contribution and the effect of input constraints on the responses are investigated by analysis of variance.Optimal abrasive wear rate was attained at 900 rpm of disc speed, 12 gm/min of abrasive flow rate and 400m of sliding distance. Disc speed was a dominant factor and it has developed 43.86% effect on abrasive wear rate. Optimal rate of metal removal was achieved at 45A of current, 200µs of pulse on time and 35V of Volts. The current was the leadingfactor and it has produced 86.38% effect on the rate of metal removal.

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Section: Fabrication Of Compositementioning

confidence: 99%

Evaluation of Abrasive WearRate and Machining Behaviors of Synthesized Nitinol Composite

Sridhar¹,

Marichamy

Subbiah³

2022

Mat. Res.

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“…A large amount of research on the eutectic niobium-silicon composite was carried out at VIAM. An experimental smelting technology which ensures the production of initial alloys with a specified chemical composition was developed [47]. The microstructure and strength properties of the Nb-Si composite were evaluated [48,49].…”

Section: High-temperature Alloys Basedmentioning

confidence: 99%

Creation of High-Temperature Heat-Resistant Alloys Based on Refractory Matrices and Natural Composites

Bondarenko

Kolodyazhnyy

Surova

2021

Inorg. Mater. Appl. Res.

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In this paper, we consider the scientific, technical, and technological aspects in the field of creating new high-temperature materials for the parts of the hot section of gas turbine engines (GTEs) with operating temperatures exceeding those existing in GTEs. More refractory metallic materials for the creation of new high-melting alloys used in the manufacture of operating and nozzle blades and other parts of promising gas turbine engines based on the Co-Cr, Pt-Al, Nb-Si, and Mo-Si-B systems were studied. In alloys of the Co-Cr system, the high-temperature strength is mainly provided owing to the hardening of the Co matrix, including dispersed precipitates of the carbide phase (TaC) and the boride phase Cr 2 B. In alloys of the Pt-Al system, it is due to alloying with Cr, Al, Ti, Re, etc., and precipitates of the coherently embedded Pt 3 Al phase. In eutectic alloys of the Nb-Si system, it is due to the complex hardening of the Nb solid solution and the Nb 5 Si 3 silicide, as well as the natural compositional structure. In Mo-Si-B alloys, high strength is achieved by alloying with α-Mo solid solution and the formation of intermetallic phases Mo 3 Si and Mo 5 SiB 2 and carbides Mo 2 C and TiC. We selected compositions; analyzed smelting methods, including directional crystallization that provides a natural compositional structure; evaluated mechanical properties at room and high temperatures and oxidation resistance; studied structural features; and provided information on technological equipment and the possibility of obtaining parts by various methods. It is shown that, depending on the composition of the selected matrix, the operating temperature of heat-resistant alloys can increase to 1300-1500°C, which is significantly higher than the existing operating temperatures for nickel heat-resistant alloys. We conclude that the studied materials are promising for use in aircraft engine manufacture and the aerospace industry.

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Alloys for application at ultra-high temperatures: Nb-silicide in situ composites

Tsakiropoulos

2022

Progress in Materials Science

207

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Vacuum Induction Furnace Melting Technology for High-Temperature Composite Material Based on Nb–Si System

Cited by 4 publications

References 7 publications

Evaluation of Abrasive WearRate and Machining Behaviors of Synthesized Nitinol Composite

Evaluation of Abrasive WearRate and Machining Behaviors of Synthesized Nitinol Composite

Creation of High-Temperature Heat-Resistant Alloys Based on Refractory Matrices and Natural Composites

Alloys for application at ultra-high temperatures: Nb-silicide in situ composites

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