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color etching

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Published: 01 December 2004
Fig. 25 Color etching (10% aqueous Na 2 S 2 O 5 ) revealed the lath martensite packet size of AF 1410 ultrahigh-strength steel that was heat treated (austenitized at 900 °C, or 1650 °F, water quenched, and tempered at 675 °C, or 1250 °F). Polarized light illumination. 100×. (G.F. Vander Voort) More
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Published: 01 December 2004
Fig. 29 Color etching to reveal weld microstructure. (a) Montage showing the structure of a large weld in a carbon steel as revealed using 2% nital. Note that the grain size and shape change dramatically from the fusion line (arrows) to the base metal at right. Nital did not fully reveal More
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Published: 01 December 2004
Fig. 6 Alpha brass (Cu-30Zn) cold worked and annealed. Color etching with Klemm's I reagent, which required approximately 1 h, revealed all the grains and annealing twins. 100×. (G.F. Vander Voort) More
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Published: 31 August 2017
Fig. 61 Color-etched slightly hypoeutectic gray iron. The color picture exemplifies the difference between when the austenite dendrite is well distinguishable from the eutectic phase (left side) and when the colors of the austenite phases interfere with the colors of the eutectic phase (right More
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Published: 31 August 2017
Fig. 7 Color-etched slightly hypoeutectic gray iron. The color picture exemplifies the difference between when the austenite dendrite is well distinguishable from the eutectic phase (left side) and when the colors of the austenite phases interfere with the colors of the eutectic phase (right More
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Published: 31 August 2017
Fig. 18 Color-etched gray cast iron. The different coloration indicates the origin of pearlite with respect to austenite. The light-colored (yellow-blue shade) pearlite is the offspring of the primary austenite dendrite, while the dark-colored (brown shade) pearlite was formed from More
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Published: 31 August 2017
Fig. 26 Color-etched microstructures of the casting skin without coating (top row), with ferrosilicon coating (middle row), and with graphite coating (bottom row). CE, carbon equivalent. Source: Ref 11 More
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Published: 31 August 2017
Fig. 59 (a) Micrograph of color-etched compacted graphite iron sample with an average silicon concentration of 2.2%. (b) Local silicon concentration map of the same sample. The color scale between the images indicates the silicon concentration. The highest silicon concentrations are visible More
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Published: 31 August 2017
Fig. 60 Micrograph of color-etched gray iron sample with a hypoeutectic composition revealing the primary austenite network More
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Published: 31 August 2017
Fig. 4 (a) Micrograph of color-etched compacted graphite iron sample with an average silicon concentration of 2.2 %. (b) Local silicon concentration map of the same sample. The color scale between the images indicates the silicon concentration. The highest silicon concentrations are visible More
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Published: 31 August 2017
Fig. 5 Micrograph of color-etched gray iron sample with hypoeutectic composition revealing the primary austenite network. See the article “Metallography and Microstructures of Cast Iron” in this Volume for the color version. More
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Published: 31 August 2017
Fig. 6 Interrupted solidified gray cast iron. Color etched by DiaPro Nap B 1 µm diamond suspension More
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Published: 01 December 2004
Fig. 4 Fe-1.86C alloy color etched with 2% nital to reveal plate martensite within austenite grains and ledeburite in the grain boundaries. 500×. (A.O. Benscoter) More
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Published: 01 December 2004
Fig. 10 Chromized sheet steel (Fe-0.06C-0.35Mn-0.04Si-0.40Ti) color etched to delineate ferrite structure. 3 g K 2 S 2 O 5 , 10 g Na 2 S 2 O 3 , and 100 mL H 2 O. 100×. (A.O. Benscoter) More
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003749
EISBN: 978-1-62708-177-1
... and describes several methods for film formation, namely, heat tinting, color etching, anodizing, potentiostatic etching, vapor deposition, and film deposition by sputtering. It provides information on the general procedures and precautions for etchants and reagents used in metallographic microetching...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003774
EISBN: 978-1-62708-177-1
... etching processes, including macroetching and color etching based on polarized light enhancement. The article concludes with an overview of the effects of alloying elements, including aluminum, beryllium, calcium, copper, iron, lithium, manganese, rare earth metals, silicon, silver, strontium, thorium...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003752
EISBN: 978-1-62708-177-1
... formation and interference techniques such as anodizing, chemical etching, and tint etching. It provides a description of reagents that deposit sulfide films and molybdate films. The article concludes with a discussion on the thermal and vapor deposition methods to produce color. anodizing chemical...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006342
EISBN: 978-1-62708-179-5
.... It also presents application examples of color metallography. cast iron color metallography ductile iron etching gray iron gray-scale metallography grinding macroscopic examination metallographic specimen microscopic examination microstructural analysis microstructure polishing sampling...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006343
EISBN: 978-1-62708-179-5
... with the very name of gray iron as an indication of the surface color when a specimen of graphitized iron is fractured. Further advances in the characterization followed from the work of Henry Clifton Sorby ( Ref 1 ) as the father of metallography. Sorby developed the method of polishing and etching metallic...
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Published: 31 August 2017
Fig. 2 Flake graphite in ASTM A436 type 1 Ni-Resist cast iron after etching with (a) 2% nital and (b) Vilella’s reagent. Original magnification for both: 200×. Color etching with aqueous 10% sodium metabisulfite reveals the segregation and dendritic nature of this grade much better than More