New tool materials based on Ni alloys strengthened by intermetallic compounds with a high carbon content

• Autorzy: Bała P.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The concept of new tool materials, based on Ni alloys strengthened by intermetallic compounds, intended for operations in high temperatures is presented in the hereby paper. The proposed chemical composition and the results of microstructure investigations as well as hardness testing in as-cast condition - are given. Design/methodology/approach: A test melt of a mass of approximately 1 kg was done in a vacuum furnace, and cast into a ceramic mould. The microstructure of the investigated material was examined by a light microscope Axiovert 200 MAT and the scanning electron microscope FIB Zeiss NEON 40EsB CrossBeam. Dilatometric experiment was performed by means of the Adamel Lhomargy DT 1000 dilatometer . Findings: The main components of the microstructure of the nickel-base investigated alloy are: the ? phase, which constitutes the matrix and the ?' phase. This ?' phase occurs as fine globular precipitates as well as in a form of primary Ta carbides of MC type. Primary carbides of irregular shapes are uniformly distributed not forming agglomerates. The assumed volume fraction of the primary carbides was achieved. Research limitations/implications: Identification of microstructure components on Ni-based materials strengthened by particles of intermetallic phases of a high carbon content. Practical implications: New tool material for hot-working. Originality/value: The new chemical compositions of tool materials based on Ni alloys strengthened by intermetallic compounds with high carbon content.

Słowa kluczowe

EN

tool materials; carbid; carbon

PL

materiały narzędziowe; węglik; węgiel

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2010
• Tom: Vol. 42, nr 1
• Strony: 5--12
• Opis fizyczny: Bibliogr. 28 poz.

Twórcy

autor

Bała P.

• Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland,

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