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specimen cleaning

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280203
EISBN: 978-1-62708-267-9
... the reaction. After this treatment, parts must be rinsed thoroughly in water and dried. When possible, a test specimen should he immersed for the maximum time anticipated and examined for chemical attack before processing the first load of parts. Nickel-base alloys should be acid etched to prepare...
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
... examination at high magnifications Specimens are cleaned adequately between preparation steps, after preparation, and after etching Preparation of metallographic specimens generally requires five major operations: sectioning, mounting (optional), grinding, polishing, and etching (optional...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130043
EISBN: 978-1-62708-284-6
... surfaces would be damaged, it could destroy the chances for determining the fracture mechanism. Cleaning of specimens is to be done only when absolutely necessary. For the most part, it is required to prepare the sample for the scanning electron microscope (SEM). Dry air blasts or soft artist brushes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110461
EISBN: 978-1-62708-247-1
... based on focused ion beam milling used for TEM sample preparation. It describes the principles behind commonly used imaging modes in semiconductor failure analysis and how these operation modes can be utilized to selectively maximize signal from specific beam-specimen interactions to generate useful...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110402
EISBN: 978-1-62708-247-1
... of samples after cross-sectional mechanical polishing. Plasma cleaning using oxygen (ashing) and/or argon can also be used to remove contaminants from samples or specimen holders/stubs. Oxygen is the most effective gas for removing residues left behind by most tapes, as they tend to be organic in...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740325
EISBN: 978-1-62708-308-9
....). Electropolishing was primarily developed for polishing metallurgical specimens and for polishing of irregular shapes that were difficult to buff. Now electropolishing is used for polishing stainless steel sheets and parts. Mass finishing normally involves loading the parts into a container together with some...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.9781627083027
EISBN: 978-1-62708-302-7
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780093
EISBN: 978-1-62708-268-6
... diamond-tipped punch is pressed against the specimen surface with a known force to form a dimple. Softer materials have bigger dimples than harder specimens. The depth and diameter of the dimple formed in this operation corresponds to the specimen hardness. Many companies have materials hardness...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870235
EISBN: 978-1-62708-314-0
... chromic acid anodizing, are also used. Because metallic cleaning is such a critical step, dedicated processing lines are normally constructed and chemical controls, as well as periodic lap shear cleaning control specimens, are employed to ensure in-process control. Automated overhead conveyances are...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290243
EISBN: 978-1-62708-306-5
... the best bond durability. Because metallic cleaning is such a critical step, dedicated processing lines are normally constructed, and chemical controls, as well as periodic lap shear cleaning control specimens, are employed to ensure in-process control. Automated overhead conveyances are used to...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.9781627082587
EISBN: 978-1-62708-258-7
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870517
EISBN: 978-1-62708-314-0
... compression test results for specimens that had delaminations around fastener holes in Fig. 19.6 , the specimens that were repaired by injection had higher compression strengths than the unrepaired specimens. Fig. 19.6 Compression tests on repaired and unrepaired delaminated fastener holes If a...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280149
EISBN: 978-1-62708-267-9
... withstand the severe thermal cycle imposed by fusion welding. Many applications demand that specimens taken from a qualification-welded assembly be capable of passing 2 t 180° side-bend testing (where t is the material thickness). This test requires 20% elongation of the outer fibers of the bend specimen...
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 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130351
EISBN: 978-1-62708-284-6
... hardness requirement of 40 to 43 HRC. The hardness of the T-head was determined to be 48.8 HRC. This hardness value exceeded the requirement of 46 to 48 HRC. Metallographic sections were prepared through the strain bar and a typical T-head at the locations shown in Fig. 4 . The specimens were prepared...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.9781627082822
EISBN: 978-1-62708-282-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.9781627082563
EISBN: 978-1-62708-256-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720183
EISBN: 978-1-62708-305-8
... and nonferrous metal wrought and cast products, powder metallurgy parts, ceramics, plastics, and glass objects. The liquid penetrant inspection method is relatively simple to perform; there are few limitations due to specimen material and geometry, and it is inexpensive. The equipment is very...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310055
EISBN: 978-1-62708-326-3
... diagrams are based on painstaking development and assessment of microstructures. Isothermal decomposition of austenite is determined by quenching small specimens in a lead or salt bath at a proscribed temperature. Specimens are held at temperature for different holding times and then quenched to room...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.9781627083157
EISBN: 978-1-62708-315-7