vacuum induction melting and solidification of tial-based

Novel Alloy Design, Processing and Development

Optimisation of casting processes and solidification-microstructure relationships using traditional (vacuum induction melting, vacuum arc melting, gravity and tilt casting, directional solidification) and advanced techniques (centrifugal and suction casting, vacuum

SOLIDIFICATION BEHAVIOUR AND MICROSTRUCTURE OF

vacuum induction melting furnace (Balzers VSG10) equipped with a ZrO 2 (65%)/SiO 2 (35%) crucible. For electromagnetic coupling, the melting crucible was inserted in an external graphite crucible (Figure 1). Melting operations were conducted MMCs in

Innovative Induction Melting Technologies: A Historical Review

referred to as the 4C process, comprises continuous induction melting of feeding materials in a water-cooled copper crucible, followed by a downward solidification of the liquid from the crucible due to a continuous pulling of the solidified ingot, see Fig.5 . The

COST REDUCTION OF TiAl BY ALTERNATIVE PRODUCTION AND INTEGRATION OF TiAl SCRAP RECYCLING

methods of TiAl and on the minimisation of downgrading TiAl scrap. This article presents firstly the state of the art of TiAl production by vacuum arc (re)melting (VAR) or induction skull melting (ISM). A comparison of new process routes under specialcling issues

Experimental research on the recycling potential of precision cast

TiAl alloys is remarkably decreased in comparison to commercial pure titanium (Table 1), the use of alumina crucibles for Vacuum Induction Melting of TiAl leads to an oxygen pickup 5000 ppm or more depending on the temperature which is above the specs of

Processes

Vacuum induction melting is indispensable in the manufacture of special alloys, which must be melted under vacuum or in an inert gas atmosphere because of their reactivity with atmospheric oxygen. Typical markets for VIM-products are Aviation Industry, high temperature alloys (superalloys), electronic application and special steels.

Structure and Properties of Cast Ti

Otherwise, vacuum induction melting has become a standard in processing of Ti-Al based intermetallics [9–14]. The material solution of the melting crucible is also a problem in the case of Ti-based intermetallics due to extreme reactivity of the melts [15]. The

Vacuum brazing of titanium heat exchanger

The brazed structure of the new TiAl and TMC materials can be used in low-pressure turbines, combustion chambers and nozzles with an operating temperature of 600C-1000C for advanced turbine engines. At present, there are basically two types of brazing materials for

Vacuum arc remelting

Vacuum arc remelting (VAR) is a secondary melting process for production of metal ingots with elevated chemical and mechanical homogeneity for highly demanding applications. The VAR process has revolutionized the specialty traditional metallurgical techniques industry, and has made possible incredibly controlled materials used in the biomedical, aviation, and aerospace fields.

Melt Related Defects in Alloy 706 and Their Effects on Mechanical Properties

The melting processes used for the materials in this study include vacuum induction melting followed by electroslag remelting or vacuum arc remelting or both. The ingots were converted to billet by an upset and draw technique. Finish forging

Melt Related Defects in Alloy 706 and Their Effects on Mechanical Properties

The melting processes used for the materials in this study include vacuum induction melting followed by electroslag remelting or vacuum arc remelting or both. The ingots were converted to billet by an upset and draw technique. Finish forging

Vacuum Induction Melting and Casting Systems

PVA's VSG vacuum melting and casting systems are available in various sizes for charge weights of up to 500 kg. Based on a standard series including the VSG 002, VSG 010, VSG 030, VSG 100, and VSG 300, the systems are available as fine-vacuum or high

Vacuum Melting of High Performance Super Alloys For Special

Vacuum Melting of High Performance Super Alloys For Special Castings Prakash Chaubal Director, Inductotherm (India) Pvt. Ltd., Bopal, Ahmedabad 380058, INDIA e-mail: pchaubalinductothermindia ABSTRACT In today's world, High Performance alloys

Physical and technical basics of induction melting

Baake: 12-05-2016 35 Melting in the Induction Furnace with Cold Crucible (IFCC) High reactive and high purity materials, e.g. TiAl Melting, alloying, over- heating and casting in one process Good homogenization of the melt caused by electromagnetic stirring

Evolution of Tantalum Content During Vacuum Induction

2021/5/4article{osti_1582384, title = {Evolution of Tantalum Content During Vacuum Induction Melting and Electroslag Remelting of a Novel Martensitic Steel}, author = {Detrois, Martin and Jablonski, Paul D. and Hawk, Jeffrey A.}, abstractNote = {The need for materials with superior thermal and mechanical properties while mitigating cost increases interest in new complex alloy compositions

Physical and technical basics of induction melting

Baake: 12-05-2016 35 Melting in the Induction Furnace with Cold Crucible (IFCC) High reactive and high purity materials, e.g. TiAl Melting, alloying, over- heating and casting in one process Good homogenization of the melt caused by electromagnetic stirring

Vacuum induction melting and solidification of TiAl

2018/8/1Vacuum induction melting and solidification of TiAl-based alloy in graphite crucibles Kamyshnykova, K.; Vacuum Pub Date: August 2018 DOI: 10.1016/j.vacuum.2018.05.017 Bibcode: 2018Vacuu.154..218K full text sources Publisher | The ADS is

Innovative Induction Melting Technologies: A Historical Review

referred to as the 4C process, comprises continuous induction melting of feeding materials in a water-cooled copper crucible, followed by a downward solidification of the liquid from the crucible due to a continuous pulling of the solidified ingot, see Fig.5 . The

Induction Melting Using Refractories and Direct Deoxidisation of Ti and TiAl

Lochbichler, Friedrich Proceedings of EMC 2007 2 The recycling process is based on two main process steps. The first process step comprehends two process phases. Vacuum induction melting (VIM) of scrap (phase 1) is follow by direct deoxidisa-tion (Deox) of

BRNO UNIVERSITY OF TECHNOLOGY

3. Melting of TiAl intermetallics Induction Skull Melting ISM is based on a segmented, water-cooled copper vessel situated in vacuum or controlled atmosphere where the melting power is supplied via an induction coil. Here, the melt is in a direct metal-to

Fundamentals of Manufacturing Technologies for

Abstract The study presents fundamentals of manufacturing technologies for aircraft engine construction elements, made of light, intermetallic TiAl based alloy, which is characterized by high relative strength and good creep and oxidation resistance. For smelting of alloy, the vacuum metallurgy methods were used, including application of induction furnace equipped with special crucibles made

Microstructure and Properties of a New Generation of

The paper characterized the phase composition, microstructure and selected mechanical properties at room temperature and at temperature corresponding to the expected operating conditions of a new generation of TiAl based alloys melted in a vacuum induction

PAPER OPEN ACCESS The Study of Titanium Alloy Precision Casting Turbine Blades Based

vacuum induction melting (Y2O3 crucible) method is used to melt the Ti-47Al-2Cr-2Nb. Four blades with a weight of 300 g were designed and cast. Titanium and aluminium are easy to be oxidized, so it is necessary to remove the oxide layer by surface polishing

Titanium Alloys Coatings

2017/2/14Production of TiAl ingots via vacuum arc remelting (VAR) processing Production of homogeneous TiAl semi-finished products via VAR skull melting and subsequent centrifugal casting into permanent molds Recycling of qualified TiAl scrap materials into semi-finished products via vacuum induction skull melting (VIM) and subsequent centrifugal casting into permanent molds

Vacuum induction melting and solidification of TiAl

The induction melting under the medium vacuum leads to the evaporation loss of aluminium. The induction melting and solidification in graphite crucibles increase carbon content in the alloy. The solidification under medium vacuum results in lower cooling rates,

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