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AMS 6470

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Published: 01 December 2003
Fig. 2 Micrographs of white nitride layers developed on vacuum-melted AMS 6470 steel. (a) White layer 0.033 mm (0.0013 in.) thick formed after single-stage nitriding at 525 °C (975 °F) for 60 h with 28% dissociation. Buildup of white layer at corner was 0.084 mm (0.0033 in.). (b) White layer More
Image
Published: 01 December 2003
Fig. 12 AMS 6470 steel with 0.15 to 0.35% Pb added, oil quenched from 900 °C (1650 °F), tempered 2 h at 605 °C (1125 °F), surface activated in manganese phosphate, and gas nitrided 30 h at 525 °C (975 °F). Structure is a white layer of Fe 2 N and a matrix of tempered martensite. 2% nital. 400× More
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Published: 30 April 2024
Fig. 8.2 Micrographs of white nitride layers developed in vacuum-melted AMS 6470 steel. Etched in 2% nital. Original magnification: 150×. (a) 0.0013 in. white layer formed after single-stage nitriding at 525 °C (975 °F) for 60 h with 28% dissociation. (b) 0.0008 in. white layer formed after More
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.t59380153
EISBN: 978-1-62708-456-7
... in vacuum-melted AMS 6470 steel. Etched in 2% nital. Original magnification: 150×. (a) 0.0013 in. white layer formed after single-stage nitriding at 525 °C (975 °F) for 60 h with 28% dissociation. (b) 0.0008 in. white layer formed after double-stage nitriding at 525 °C (975 °F) for 9.5 h with 25 to 28...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900039
EISBN: 978-1-62708-350-8
... networking (usually on corners) due to the higher solubility of nascent nitrogen at higher temperatures ( Fig. 2 ). Fig. 2 Micrographs of white nitride layers developed on vacuum-melted AMS 6470 steel. (a) White layer 0.033 mm (0.0013 in.) thick formed after single-stage nitriding at 525 °C (975 °F...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900167
EISBN: 978-1-62708-350-8
... and surface metallurgy is involved, the user can usually obtain scanning electron microscopy services through a local metallurgical or materials science school. Examples of case microstructures are shown in Fig. 12 to 18 . Fig. 12 AMS 6470 steel with 0.15 to 0.35% Pb added, oil quenched from 900 °C...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310203
EISBN: 978-1-62708-326-3
... Ac 1 for hypereutectoid steels. Quenching Quench severity (rate of cooling) depends on the required depth of hardening and the hardenability of the steel. Specific recommendations for quench media selection for use with various steel alloys are provided by standards such as SAE AMS 2759...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440141
EISBN: 978-1-62708-262-4
... for aluminum-containing low-alloy steels commonly gas nitrided Steel Composition, % Austenitizing temperature (a) Tempering temperature (a) SAE AMS Nitralloy C Mn Si Cr Ni Mo Al Se °C °F °C °F … … G 0.35 0.55 0.30 1.2 … 0.20 1.0 … 955 1750 565–705 1050–1300 7140...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250039
EISBN: 978-1-62708-345-4
... Nominal chemical compositions for aluminum-containing low-alloy steels commonly gas nitrided Steel Composition, % SAE AMS Nitralloy C Mn Si Cr Ni Mo Al Se ... ... G 0.35 0.55 0.30 1.2 ... 0.20 1.0 ... 7140 6470 135M 0.42 0.55 0.30 1.6 ... 0.38 1.0...