Vacuum melting equipment and technologies for advanced materials

• Autorzy: Jarczyk G. , Franz K.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The purpose of the paper is to describe selected technologies and equipment for fabrication of advanced materials for different applications. Design/methodology/approach: The production of complex parts by the vacuum investment casting process has led to increased demands on equipment and processes. Highly automated machines and simple operation conditions are a must to achieve the required process efficiency and product quality. Vacuum melting, re-melting and casting technology has become an increasingly requirement for advanced materials which are used at high temperature, high stress applications such as for the aerospace and power turbine industries. Findings: Vacuum metallurgy is presently entering a new phase building on the experience gained from continuously refining established processes and developing new process combinations. Secondary vacuum processes such as melting and remelting, as well as casting and metal-powder technology, have led to high quality metallurgical products tailored to meet the ever-increasing demands imposed upon them. New processes are being developed that will yield improved quality and efficiency as well as the opportunity to produce entirely new products. Research limitations/implications: The cleanliness of specialty steels or superalloys produced by vacuum melting is much better than that attained by conventional processing methods, what means, that higher operating efficiencies can be obtained. Originality/value: A wide variety of process routes for vacuum processing are available, what will be in this paper as a short review presented.

Słowa kluczowe

EN

vacuum metallurgy; vacuum melting equipment

PL

metalurgia próżniowa

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2012
• Tom: Vol. 56, nr 2
• Strony: 82--88

Twórcy

autor

Jarczyk G.

• ALD Vacuum Technologies GmbH, Wilhelm-Rohn-Str. 35, 63450 Hanau, Germany

autor

Franz K.

• ALD Vacuum Technologies GmbH, Wilhelm-Rohn-Str. 35, 63450 Hanau, Germany

Bibliografia

• [1] H. Franz, Vacuum melting, remelting and casting, A must for highest end materials, Millenium Steel, 2006, 117-121.
• [2] T.M. Pollock, S. Tin, Nickel-based superalloys for advanced turbine engines, Journal of Propulsion and Power 22/2 (2006) 361-374.
• [3] M.G. Ardakani, et al., Competitive grain growth and texture evolution during directional solidification of superalloys, TMS Superalloys, 2000, 219-228.
• [4] G. Jarczyk, et al., Development of melting and casting processes of TiAl in the cold induction crucible vacuum furnace, Proceedings of the 12th World Conference on Investment Casting and Equipment Expo, Dallas, 2008.