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macroscopic examination

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850001
EISBN: 978-1-62708-260-0
... was quite uniform. Figure 1-38 Mirror-image sulfur print of the macroetched disc shown in Fig. 1-6 . Abstract Abstract This chapter describes several macroscopic examination techniques, including macroetching, contact printing, fracturing, and lead exudation. It explains how each method...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270025
EISBN: 978-1-62708-301-0
... of examination at these three levels in failure analysis is described with examples. 4.1 Macroscopic Examination 4.2 Microscopic Examination References References 1. McCall J.L. and French P.M. , Metallography in Failure Analysis , Plenum Press , New York , 1978 10.1007/978-1-4613...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090419
EISBN: 978-1-62708-266-2
... to characterize cracking and fracture damage, and explains what to look for during macroscopic and microscopic examinations as well as chemical and metallographic analyses. It also includes nearly a dozen case studies investigating SCC failures in various materials. failure analysis macroscopic examination...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.t51180151
EISBN: 978-1-62708-256-3
.... , Macroscopic Examination Procedures for Failure Analysis , Metallography in Failure Analysis , McCall J.L. and French P.M. , Ed., Plenum Press , 1978 • Wulpi D.J. , Techniques of Failure Analysis , Understanding How Components Fail , 2nd ed. , ASM International , 1999 , p 1...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610549
EISBN: 978-1-62708-303-4
... testing. failure analysis fractography macroscopic examination microscopic examination IN THE STUDY OF ANY FAILURE, the analyst must consider a broad spectrum of possibilities or reasons for the occurrence. Often a large number of factors, frequently interrelated, must be understood...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780404
EISBN: 978-1-62708-281-5
... introduces the subject of fractography and how it is used in failure analysis. The discussion covers the structure of and fracture and crack-propagation behavior of polymeric materials, the distinction between the ductile and brittle fracture modes on the basis of macroscopic appearance, and the examination...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720001
EISBN: 978-1-62708-305-8
.... The objective of metallography is to accurately reveal material structure at the surface of a sample and/or from a cross-section specimen. For example, cross-sections cut from a component or sample may be macroscopically examined by light illumination in order to reveal various important macrostructural...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130111
EISBN: 978-1-62708-284-6
... testing Selection, identification, preservation, and/or cleaning of specimens Macroscopic examination and analysis and photographic documentation Microscopic examination and analysis Selection, preparation, examination, and analysis of metallographic specimens Determination of failure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130043
EISBN: 978-1-62708-284-6
... in the chapter “ General Aspects of Failure Analysis ” in this book. Collection of Background Information Preliminary Visual Examination Nondestructive Testing Mechanical Testing Selection and Preservation of Specimens Sectioning of Specimens Macroscopic Examination Microscopic Examination...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630001
EISBN: 978-1-62708-270-9
..., and/or cleaning of specimens (and comparison with parts that have not failed) Macroscopic examination and analysis and photographic documentation (fracture surfaces, secondary cracks, and other surface phenomena) Microscopic examination and analysis using various light microscopy and electron microscopy...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630117
EISBN: 978-1-62708-270-9
... the origin of a low-cycle fatigue-loaded test article A tremendous amount of information can be learned about a fatigue fracture with only macroscopic examination. That is, study with the unaided eye and relatively low magnification—up to perhaps 25 to 50×—is usually the most important single way...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270053
EISBN: 978-1-62708-301-0
... ) that many consulting firms depended on established relationships with insurance companies for their financial survival and, hence, rendering unbiased opinions in such circumstances would be difficult. The lamp had two sets of metal posts with attached tungsten filaments. Macroscopic examination...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060385
EISBN: 978-1-62708-261-7
... or grainy features. In contrast, the surface from a ductile fracture has a dull, fibrous appearance with necking (distortion) of the section and shear lips in the region where final fracture occurs along the shear-stress plane. Although a macroscopic examination of the fracture surface of a component...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270133
EISBN: 978-1-62708-301-0
...Abstract Abstract A second-stage compressor blade in an aircraft engine fractured after 21 h of service. The remaining portion of the blade was removed and examined as were several adjacent blades. Based on the results of SEM fractography, microstructural analysis, and hardness testing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270124
EISBN: 978-1-62708-301-0
... for a more detailed examination of the driven end of the shaft. cardan shaft torsional overload Summary Background Visual Examination of General Physical Features Testing Procedure and Results A cardon shaft in an aircraft engine failed in service. Investigations revealed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270143
EISBN: 978-1-62708-301-0
...Abstract Abstract A low-pressure turbine rotor blade failed during a test run, causing extensive damage to an aircraft engine. Visual examination showed that the nickel-base superalloy blade broke above the root platform in the airfoil section, leaving a fracture surface with two distinct...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780177
EISBN: 978-1-62708-281-5
... and Optical Engineering , Vol 1 , Academic Press , 1965 Macroscopic Surface Irregularities Microscopic Surface Irregularities Transmission and Haze Yellowness Refractive Index Birefringence Surface Irregularity and Contamination Surface Gloss and Color Ad Hoc Testing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270120
EISBN: 978-1-62708-301-0
...Abstract Abstract This chapter describes an investigation following an aircraft accident in which the main undercarriage struts had failed. Visual examination revealed that the starboard strut fractured about 13 cm from the end nearest the underside of the wing. A close-up view of the fracture...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540047
EISBN: 978-1-62708-309-6
... occur from grain-boundary slip (i.e., time-dependent creep deformation in polycrystalline metals). These underlying microscopic mechanisms are discussed in more detail in section 2.4.2 . When examining fracture surfaces, it is important to obtain an overall perspective from both macroscopic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610055
EISBN: 978-1-62708-303-4
... J (10 or 15 ft · lbf). Ductile Fracture Brittle Fracture Macroscopic Ductile and Brittle Fracture Surfaces Ductile-to-Brittle Transition in Steels Intergranular Failures Causes of Steel Embrittlement Combined Fracture Modes Acknowledgments References References 1...