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Published: 01 September 2008
Fig. 8 Carbon gradients for gas-carburized 1020 and 8620 steels. The 1020 steel was carburized in a batch furnace, and the 8620 was carburized in a pit furnace. More
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Published: 01 August 2018
Fig. 10.95 Steel nitrocarburized at 550 °C (1020 °F) for 5 h. The surface was coated with a chemically deposited layer of hard nickel to preserve it for metallographic examination (indicated as Ni in the figure). The “white layer” is where the formation of high hardness nitrides occur More
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Published: 01 March 2006
Fig. 3 Effects of time and temperature for liquid carburizing of 1020 steel. Source: Ref 9 More
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Published: 01 March 2002
Fig. 3.42 Microstructure of an AISI/SAE 1020 cast bloom with a normal manganese sulfide inclusion. Note the color difference of iron sulfide in Fig. 3.41 . Unetched. 1000× More
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Published: 01 March 2002
Fig. 3.51 Microstructure of a plasma-arc-cut surface of an as-rolled AISI/SAE 1020 steel plate showing surface damage (top). Regions “A”, “B”, “C” are shown at higher magnification in Fig. 3.52 . 2% nital and 4% picral etch. 100× More
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Published: 01 March 2002
Fig. 3.52 Microstructure of the affected layers in the plasma-torch-cut AISI/SAE 1020 steel plate in Fig. 3.51 showing (a) lath martensite at the surface, (b) lath martensite and ferrite just below the surface, and (c) ferrite and pearlite of the base steel. 4% picral etch. 500× More
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Published: 01 March 2002
Fig. 5.35 (Part 1) Micrographs of a water-quenched AISI/SAE 1020 steel with a fully martensitic microstructure. (a) Taken with fully open aperture diaphragm, (b) taken with a closed-down aperture diaphragm, and (c) taken with a properly set aperture diaphragm. Note the improved clarity More
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Published: 01 March 2002
Fig. 6.2 Micrograph of AISI/SAE 1020 steel shown on the video monitor in Fig. 6.1 . Pearlite is the gray-appearing constituent, and ferrite is the white-appearing constituent. Marshall’s reagent was specifically used to delineate the ferrite grain boundaries for image analysis. The pearlite More
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Published: 01 March 2002
Fig. 7.4 Microstructure of an as-rolled AISI/SAE 1020 steel plate. (a) Planar plane. (b) Longitudinal plane. 4% picral etch. 100× More
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Published: 01 March 2002
Fig. 7.7 Microstructure of an as-polished AISI/SAE 1020 steel bar showing aluminum oxide inclusions. Longitudinal plane of polish. Unetched. Courtesy of Samuel Lawrence, Bethlehem Steel, Homer Research Laboratories. 500× More
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Published: 01 March 2002
Fig. 7.45 Macrograph of microstructure of a AISI/SAE 1020 welded plate as a two-dimensional view. 5×. 2% nital etch. (Courtesy of Samuel Lawrence, Bethlehem Steel, Homer Research Center) More
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Published: 01 March 2002
Fig. 8.9 A water-quenched AISI/SAE 1020 steel showing lath martensite. 2% nital etch. 320× More
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Published: 01 March 2002
Fig. 8.33 Water-quenched and tempered AISI/SAE 1020 steel showing fine carbides and residual laths of martensite. 4% picral followed by 2% nital etch. 500× More
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Published: 01 January 2015
Fig. 9.23 Ferrite (light) and pearlite (dark) bands in 1020 steel hot-rolled plate. Light micrograph, longitudinal section, nital etch. Courtesy of S.W. Thompson. Source: Ref 9.61 More
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Published: 01 March 2002
Fig. 2.42 Annealed condition showing dendritic structure of the as-cast AISI/SAE 1020 steel shown in Fig. 2.41 . 4% picral etch. 32× More
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Published: 01 March 2002
Fig. 3.5 A dendritic microstructure in a continuous-cast AISI/SAE 1020 steel showing pearlite (dark etching constituent) in the interdendritic regions and between the dendrite arms. 4% picral etch. 50× More
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Published: 01 November 2007
Fig. 17.11 Carbon profiles of a plasma-carburized 1020 steel after the boost and diffusion steps compared to the profile produced by standard gas carburization. Source: Ref 17.2 , p 355 More
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Published: 01 November 2007
Fig. 17.12 Jominy data comparing a carbonitrided and a carburized 1020 steel. Source: Ref 17.1 , p 58 More
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Published: 01 March 2002
Fig. 12.29 Rupture strength at 1020 °C (1868 °F) of a nickel-base superalloy as a function of cobalt content, showing a peak at about 13% Co More
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Published: 01 February 2005
Fig. 6.7 Variations in temperatures at various locations in forging of 1020 steel billets (3 in. diam by 3 in. high, or 76 mm diam by 76 mm high) to 1 in. (25 mm) thickness at 2250 °F (1230 °F) between dies at 400 °F (205 °C). More