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superheated metal

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Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001373
EISBN: 978-1-62708-173-3
...) is a fusion welding process in which two metals become bonded after being heated by superheated metal that has experienced an aluminothermic reaction. This article describes the thermite welding principles by presenting equations of the aluminothermic reaction that occurs in thermite welding. It provides...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005196
EISBN: 978-1-62708-187-0
... through the surrounding coil. This necessitates superheating the metal in the loop and pumping it out of the channel into the main vessel, where it mixes with the cold metal and heats it by conduction. The ratio of heat transfer is limited, as is the stirring action in the main vessel...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005205
EISBN: 978-1-62708-187-0
... electric heat to a ladle of molten metal to either maintain the temperature or raise the temperature of the melt. For numerous steel grades, especially those with extremely low carbon contents, plasma arc ladle heating is an alternative to heating with graphite electrodes and the risk of carbon pickup...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005904
EISBN: 978-1-62708-167-2
... of ferromagnetic input materials, the electrical efficiency during charging is approximately 7.5% higher than melting with heel, where power is transmitted by induction to the molten metal over the complete melting cycle ( Ref 5 ). Improved refractory service life. Apart from the superheating period...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006337
EISBN: 978-1-62708-179-5
..., constituting 60 and 36% of the tonnage, respectively ( Ref 2 ). The remaining 4% is comprised of electric arc furnaces and some resistance heating, which are also used as holding furnaces between melting and casting lines for temperature control or superheating. Fig. 1 Types of cast iron melting...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006299
EISBN: 978-1-62708-179-5
...Abstract Abstract Thermal analysis is used to analyze solidification processes by recording the temperature as a function of time during cooling or heating of a metal or alloy to or from a temperature above its melting point. This article describes the use of cooling curves for analyzing...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005158
EISBN: 978-1-62708-186-3
... through the die, one station at a time. Electrical discharge machining is a thermoelectric process. Heat from the spark melts the metal, and bulk boiling of superheated metal ejects approximately 1 to 10% of the molten metal. As a result, the hardness or tensile strength of the metal does not have any...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004157
EISBN: 978-1-62708-184-9
... superheater tubes protected by metallic tube shields awaiting installation at one waste-to-energy plant Fig. 1 The overlay cladding, approximately 2 mm (80 mils) thick of alloy 625 (UNS N06625) overlay superheater tube, was corroded away in 15 months in a waste-to-energy boiler. Fig. 2...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005213
EISBN: 978-1-62708-187-0
... 11 Fig. 8 Schematic of the inoculation of cast iron by metals to form salt-like carbides. Source: Ref 11 Fig. 9 Suggested growth rate curves for austenite (γ) and graphite (Gr) in the Fe-C-Si alloys. (a) Austenite-flake graphite eutectic. (b) Austenite-spheroidal graphite...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005199
EISBN: 978-1-62708-187-0
... 0 2 0 0 1 2 3 REM canister 1 0 1 0 0 1 1 3 (a) D-H, Dortmund-Horder-Huttenunion; R-H, Ruhrstahl-Heraeus; RH-OB, Ruhrstahl-Heraeus oxygen blowing; CAS, composition adjustment by sealed argon bubbling; CAB, capped argon bubbling; REM, rare earth metals Parameters...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003729
EISBN: 978-1-62708-177-1
... regions in castings. Superheating temperatures: (a) 50 °C (122 °F), (b) 80 °C (176 °F), (c) 150 °C (302 °F). Source: Ref 12 Fig. 6 Simulation of columnar-to-equiaxed transition in a conventionally cast Al-7Si alloy. (a) Calculation with no fluid flow. (b) Calculation that includes fluid flow...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005325
EISBN: 978-1-62708-187-0
... the superheated metal contacts the cold mold wall, a supercooled zone is created at the interface. Impurities in the liquid or mold wall are nucleation catalysts, and a chill zone, evidenced by small grain size in the rapidly solidified metal, is created. Although many believe that the chilling tendency of CG...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005294
EISBN: 978-1-62708-187-0
... between slag and molten metal are efficient, because the interface area is large and the slag is at least as hot as the metal. Thermal efficiency on meltdown is high, approximately 80%, because the arcs are surrounded by charge material. Efficiency of superheating molten metal is relatively low...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006304
EISBN: 978-1-62708-179-5
... showing dendritic graphite aggregates in cast iron. (a) Graphite spheroid with dendritic outgrowth. Original magnification: 250×. Reprinted with permission from The Japan Institute of Metals and Materials. Source: Ref 56 . (b) Compacted graphite dendrites. Source: Ref 91 Fig. 25 Scanning...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005905
EISBN: 978-1-62708-167-2
... of inductors 4 2 Power, kW 3200 1600 Melt rate, tons/h 7 3 Holding power, kW 430 320 Melting energy, kWh/ton 460 500 Total daily production 75–140 Characteristic data for medium-frequency crucible furnaces for melting of heavy-metal alloys Table 2 Characteristic data...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006316
EISBN: 978-1-62708-179-5
... Microstructure Chilling Tendency Metallic Matrix Properties Production and Application of Thin-Wall Gray Iron Castings References References 1. 49th Census of World Casting Production , Modern Casting , Dec 2015 , p 26 – 32 2. Chisamera M. , Riposan I. , Stan S...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003174
EISBN: 978-1-62708-199-3
..., ferrous alloys, inoculants, scrap contaminated with aluminum components Antimony ≤0.02 Promotes pearlite. Addition of 0.01% reduces the amount of ferrite sometimes found adjacent to cored surfaces. Vitreous enameled scrap, steel scrap, white metal bearing shells, deliberate addition Arsenic...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003149
EISBN: 978-1-62708-199-3
... Stress-Corrosion Cracking (SCC) Product Forms and Properties Corrosion Resistance Metal Processing and Fabrication Metallurgy of Zirconium and Its Alloys Alloy Grades Corrosion Resistance Hafnium The Allotropic Transformation Cold Work and Recrystallization Anisotropy...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005195
EISBN: 978-1-62708-187-0
... is the primary melting method and is used by over 80% of steel foundries ( Ref 1 ). However, arc furnaces are not good holders or efficient at superheating metal, so it is not uncommon to use induction furnaces to superheat steel after the arc melters. Induction furnaces used to melt steel require cleaner charge...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005725
EISBN: 978-1-62708-171-9
... on shape and coating structure. (a) Particle is heat softened or beginning to resolidify. At impact, it does not flow out and begins to lift at the edges. (b) Properly melted particle impacts and flows to form a well-bonded classical lamellar splat shape. (c) Superheated particle impacts and splashes...