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Vacuum-arc remelting

Vacuum arc remelting often is used to develop optimum solidification stmctures. Electroslag remelting, which utilizes a molten pool of slag in which the electrode is immersed, yields a cleaner and purer material. [Pg.121]

Double-stranded RNA (dsRNA) in yeast, 26 451—452 Double-stranded RNA viruses, 3 135 Double-suction pumps, 21 60, 63 Double tipping pan vacuum filter, 11 352 Double titration method, 15 145 Double vacuum-arc remelting (VAR), in titanium sponge consolidation, 24 854 Double wall nanotubes (DWNT), 26 737 Double-wall tanks, 24 296 Doubly smart block copolymers,... [Pg.288]

Chemical compositions plus processing and heat treatment schedules relative to Inconel 718 and Udimet 718 are presented in Tables I and II. Hardness and ASTM grain size (average numbers) are included in Table II. Both the Inconel 718 and Udimet 718 superalloys were obtained as large-diameter (29 cm and 26 cm, respectively) hot-finished forging billets, vacuum-induction-melted and vacuum-arc-remelted (VIM-VAR). The two alloys have comparable chemical compositions, but the Inconel 718 has a significantly higher silicon content. [Pg.197]

Process code HIP, hot isostatically pressed at 1200 C, 69 MPa for 2 hr. VIM, vacuum induction melted. VAR, vacuum arc remelted. EFR, electroflux remelted. [Pg.215]

Nickel-titanium solid SMAs are manufactured by a double-vacuum melting process to ensure the quality, purity, and properties of the final material. After the formulation of raw materials, the alloy is vacuum-induction melted at 1400°C. After the initial melting, the alloy transition temperature must be controlled due to the sensitivity of the transition temperature to small changes in the alloy chemistry. This is followed by vacuum-arc remelting to... [Pg.140]

Vacuum arc remelting Simple High temperature and vacuum... [Pg.297]

As-cast AlxCoCrFeNi alloys were prepared according to molar ratios of x = 0, 0.25, 0.50, and 1.00 (called C-0, C-0.25, C-0.50, and C-1.00, respectively) in a vacuum arc remelter. Table 1 lists the composition of the alloys. Test specimens were cut in 0.8 cm x 0.8 cm x 0.3 cm and cold-mounted in epoxy with the outside surface from a surface of 0.8 cm x 0.8 cm of specimens. The specimens were subsequently ground and polished with grit 1000 silicon carbide paper, rinsed and dried in preparation for electrochemical tests and weight loss measurements. During determination of the weight loss, six sets of samples were dipped in... [Pg.134]

Vacuum arc remelting (VAR) (metallurgy) The melting of an alloy by a low voltage, high current arc in a vacuum (10 mbar). See also E-beam melting Vacuum-induction melting. [Pg.720]


See other pages where Vacuum-arc remelting is mentioned: [Pg.95]    [Pg.6]    [Pg.100]    [Pg.255]    [Pg.248]    [Pg.302]    [Pg.100]    [Pg.969]    [Pg.346]    [Pg.11]    [Pg.313]    [Pg.60]    [Pg.46]    [Pg.115]    [Pg.294]    [Pg.297]    [Pg.304]    [Pg.373]    [Pg.375]    [Pg.393]    [Pg.327]    [Pg.133]    [Pg.727]    [Pg.739]    [Pg.221]    [Pg.704]    [Pg.449]    [Pg.419]    [Pg.749]    [Pg.328]    [Pg.773]    [Pg.178]    [Pg.196]    [Pg.313]   
See also in sourсe #XX -- [ Pg.3 , Pg.46 ]

See also in sourсe #XX -- [ Pg.294 , Pg.297 , Pg.304 ]




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Remelting

Vacuum-arc

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