1-20 of 66 Search Results for

black etchants

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850536
EISBN: 978-1-62708-260-0
...: 10.31399/asm.tb.mpp.t67850536 Copyright © 1998 ASM International® All rights reserved. www.asminternational.org cAPPENDIX MACROETCHANTS FOR REVEALING STRAIN PATTERNS IN NONFERROUS METALS 536 Material Al-Mg alloys Al-Cu-Mg alloys Al Ni-based superalloys Mar-M200 Udimet-700 Etchant Composition 10% aq. H3PO4...
Image
Published: 01 March 2002
Fig. 7.1 Microstructure of a nickel-plated AISI/SAE 1008 steel sheet specimen showing embedded silicon carbide particles from the grinding paper. The nickel layer pulled away from the mount during the curing process and produced a gap. The mount appears black, the nickel layer is unattacked More
Image
Published: 01 August 2018
heterogeneous grain size, with abnormal grain growth. To preserve the surfaces of the thin sheets, two sheets were mounted together. The black line in the center of the image corresponds to the region where the two sheet surfaces are in contact. Etchant: nital. Source: Ref 17 More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850165
EISBN: 978-1-62708-260-0
... with some isotropic metals polarized light reveals additional detail when these metals are etched with certain etchants. Some of the anodizing techniques used on isotropic metals (such as aluminum) require subsequent examination of the metal with polarized light. In some metals, certain phases...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850610
EISBN: 978-1-62708-260-0
... in practice). Age in dark bottle at 20°C for at least 24 h. Do not remove precipitate. When stock solution turns gray or black after prolonged storage, discard. Preetch sample with a general-purpose grain-boundary etchant. Immerse sample in solution until sample surface turns violet to blue. Colors enhanced...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560453
EISBN: 978-1-62708-291-4
... Abstract This appendix provides information on the chemical composition, method of use, and applications of various etchants used in the metallography of carbon steels. chemical composition etchants etching Etchants are identified by an abbreviated form of their chemical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030089
EISBN: 978-1-62708-349-2
...-field illumination, dark-field illumination, polarized-light microscopy, interference and contrast microscopy, and fluorescence microscopy. The chapter also provides a discussion of sample preparation materials such as dyes, etchants, and stains for the analysis of composite materials using optical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400297
EISBN: 978-1-62708-258-7
..., and compositions and usage guidance for etchants, chemical polishing solutions, and coatings. chemical composition chemical polishing coatings etchants ferrous metallographer iron metallographic equipment steel Metallographer s Guide: Practices and Procedures for Irons and Steels Bruce L. Bramfitt...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720161
EISBN: 978-1-62708-305-8
..., polishing, and etching. The discussion covers their basic principles, advantages, types, and applications, as well as the equipment setup. The chapter includes tables that list etchants used for microscopic examination. It also provides information on microscopic examination, microphotography...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.9781627082600
EISBN: 978-1-62708-260-0
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220403
EISBN: 978-1-62708-259-4
.... The black line in the center of the image corresponds to the region where the two sheet surfaces are in contact. Etchant: nital. Source: Ref 17 Fig. 12.33 Cross section of a piece of steel annealed after the performance of a Brinell hardness impression. The size of the recrystallized grains...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230199
EISBN: 978-1-62708-298-3
... etchants recommended in the literature were tried, and although most produced heavy pitting at the oxide inclusions, an oxalic acid etch has been modified to give very satisfactory grain-boundary definition. The etch involves dipping the specimen in 3 vol% oxalic acid at 100 °C (212 °F) for 1 min...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900167
EISBN: 978-1-62708-350-8
... be damaged. Etching of the Sample The sample should be etched only after microhardness tesing has been completed. If etched beforehand, the hardness indentations may not be clear enough to read accurately. Etchants Nital Nital is perhaps the most commonly used etchant for a visual case...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220039
EISBN: 978-1-62708-259-4
... grinding, and etching. It describes macrographic etchants and the features they reveal along with common etching problems and how to avoid them. It explains how to evaluate etching results and how they can be improved using remedial processes such as light grinding. It also discusses photographic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220069
EISBN: 978-1-62708-259-4
... roughness, the factors that contribute to it, and its effect on image quality. It discusses the use of fixturing and holding devices, includes photographic examples of polishing defects and drying marks, and provides an overview of micrographic etchants and the features they reveal. It also describes...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850001
EISBN: 978-1-62708-260-0
... revealed the great value of such etchants. After the initial work by Waring and Hofamman, considerable attention was devoted to the study of strong acids for deep etching steels. The most widely used deep etch consists of a 1:1 solution of reagent-grade [1] hydrochloric acid and water heated to 160...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850060
EISBN: 978-1-62708-260-0
... is the inherent resistance of the mounting material to the solvents and etchants to be used, particularly if the etchant is to be heated. For edge examination, the degree of bonding and the grinding and polishing rates relative to the sample are important. Fissures between the sample and mount can create havoc...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220193
EISBN: 978-1-62708-259-4
... A533 Cl.1 (ASME SA 533 Cl 1 or 20MnMoNi55) with C = 0.2%, Mn = 1.38%, Si = 0.25%, Ni = 0.83%, Mo = 0.49% continuously cooled at 50 °C/s (90 °F/s). Transformation start temperature: 415 °C (780 °F). Etchant: Nital 2%. Courtesy of B. Marini, CEA, France. Source: Ref 28 Fig. 9.16 Rapidly...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230339
EISBN: 978-1-62708-298-3
... of as much as 127 μm (0.005 in.) [ Brush Wellman 1982 ]. Etchants commonly used for chemical milling are: 2%HF-2%HNO 3– 2%HSO 4 [ Brush Wellman 1982 , Hashiguchi 1992 ] Sulfuric acid solutions Nitric/hydrofluoric acid solutions and ammonia bifluoride [ Hashiguchi 1992 ] 15% ammonium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.9781627082587
EISBN: 978-1-62708-258-7