1-20 of 354 Search Results for

sample examination

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 August 2005
DOI: 10.31399/asm.tb.horfi.t51180151
EISBN: 978-1-62708-256-3
... with the investigation and analysis of metallurgical failures that occur in service. It describes the steps of an orderly failure analysis from collecting and examining samples to performing mechanical and nondestructive tests, preparing and examining fractographs and micrographs, determining failure mode, writing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910475
EISBN: 978-1-62708-250-1
... discussed in the chapter are: collection of background information and sampling; preliminary laboratory examination; detailed metallographic and fractographic examinations; chemical analysis of corrosion products and bulk materials; corrosion testing for quality control; mechanical testing for quality...
Series: ASM Technical Books
Publisher: ASM International
Published: 15 June 2021
DOI: 10.31399/asm.tb.mpktmse.t56010001
EISBN: 978-1-62708-384-3
... ways tensile measurements are plotted and presents examples of each method. It examines a typical load-displacement curve as well as engineering and true stress-strain curves, calling attention to certain points and features and what they reveal about the test sample and, in some cases, the cause...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870075
EISBN: 978-1-62708-344-7
...Abstract Abstract This chapter discusses the concept of mean stress and explains how it is used in fatigue analysis and design. It begins by examining the stress-strain response of test samples subjected to cyclic forces and strains, noting important features and what they reveal about...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780295
EISBN: 978-1-62708-281-5
... below T g ; L , sample thickness. Source: Ref 4 Fig. 3 Polyvinyl chloride quenched from 90 to 40 °C (195 to 105 °F). Accurate to ±2%. Source: Ref 37 Fig. 4 Tensile stress-strain curves for amorphous polyethylene terephthalate film unannealed (solid line) and annealed at 51 °C...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490183
EISBN: 978-1-62708-340-9
... dissimilar-metal weld locations and failures. One of the significant results of the extensive field inspections and sample examinations that have been performed is the development of a procedure for prediction of damage in service, or PODIS ( Ref 4 ). This procedure allows calculation of the total...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220069
EISBN: 978-1-62708-259-4
... describes the steps involved in replicating part surfaces. etchants etching metallographic replication microscopic examination sample preparation Several techniques are used to observe the structure of steels and cast irons in the microscopic scale. For many of these techniques, sampling...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220039
EISBN: 978-1-62708-259-4
... reproduction, lighting, and image enhancement techniques. etching macrographic examination photographic reproduction sample preparation Macrographic examination is the examination under low or no magnification of a polished plane section of a part or a metallic sample, usually subjected...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220667
EISBN: 978-1-62708-259-4
... of the wheel. A considerable number of metallographic evaluations were performed in samples removed from the region where the fracture started, in an attempt at identifying the probable causes of the failure. The selected techniques focused on fractographic examination of the initiation point and SEM...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610549
EISBN: 978-1-62708-303-4
... and analysis of failure is as follows: Collection of background data and selection of samples Preliminary examination of the failed part (visual examination and record keeping) Nondestructive testing Mechanical testing (including hardness and toughness testing) Selection, identification...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270019
EISBN: 978-1-62708-301-0
... damages and collect test specimens for subsequent examination and chemical analysis. It also discusses the role of mechanical property testing, the use of nondestructive evaluation, and the final step of generating a report. failure analysis nondestructive evaluation FAILURE ANALYSIS...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430149
EISBN: 978-1-62708-253-2
...) from the top to the bottom. Visual examination performed on an as-received cut piece of the PSH sample showed a fish-mouth opening at the ruptured region with no significant thickness reduction ( Fig. 6.32a ). The total thickness loss toward the fire side was 2.6 mm (0.1 in.), whereas...
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
....) Figure 3-5 Influence of etch time on coloration of lath martensite, sample from an alloy of Fe and 4.9% Mn that has been tint-etched with Beraha’s aqueous 3% K 2 S 2 O 5 and 10% Na 2 S 2 O 5 reagent, 50 ×. (Courtesy of A. O. Benscoter, Bethlehem Steel Corp.) Figure 3-7 Examples...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430351
EISBN: 978-1-62708-253-2
... penetration on the ID side was also visible. The tube sample was subjected to a low-magnification examination using a zoom stereo microscope. Leakage in the form of multiple punctures precisely from the weld location was clearly visible on the outer surface ( Fig. 6.159a ). The inner surface of the tube...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400215
EISBN: 978-1-62708-258-7
... and air-cooled sample examined with DIC is seen in Fig. 8.53 . In this case, all signs of cold working are absent, and the DIC reveals the step relief between the ferrite grains. Differential interference contrast can also be used on unetched specimens. For example, Fig. 8.54 shows a slag particle...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400087
EISBN: 978-1-62708-258-7
... began with Henry Clifton Sorby on July 28, 1863. Sorby, whose photograph can be seen in Fig. 4.1 , was an English geologist, petrographer, and mineralogist who was the first person to examine polished and chemically etched metal samples under the microscope. His samples included Swedish wrought iron...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850267
EISBN: 978-1-62708-260-0
... sample thermally etched at 2000°F. Austenite grain boundaries and oxide particles are visible using both modes (75 ×). Figure 4-16 Example of the value of polarized light in the examination of an optically anisotropic material (beryllium) that is difficult to etch (65 ×). (Courtesy of A. E...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780359
EISBN: 978-1-62708-281-5
... is an indication of the ductility of the material. Additionally, an examination of the test specimens is used to classify the failure mode from brittle to ductile. Falling weight impact testing is described as part of ASTM D 3029. Fatigue testing of plastic materials exposes the samples to cyclic stresses...
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
... of pure lead [ 27 ]. The samples were annealed to produce an average grain size of about 5 mm. Orthogonal cuts were made with a high-speed steel microtome with a depth of cut of 0.001 in. Examination of the cut surfaces revealed transverse marks extending across some grains in a direction perpendicular...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420239
EISBN: 978-1-62708-310-2
... sections of multiple ternary systems can be determined without making dozens or even hundreds of individual alloys, thus saving the usage of raw materials. The diffusion multiple approach can also save EPMA examination time, because there is no need to exchange many alloy samples in and out of the EPMA...