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SEM/EDS analysis

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Published: 01 June 2019
Fig. 9 EDS analysis and corresponding SEM micrographs of different foreign particles observed on the fracture surface of the forging near the defect More
Image
Published: 01 June 2019
Fig. 10 EDS analysis and corresponding SEM micrographs of different inclusions More
Image
Published: 01 December 1992
Fig. 4 Standardless, semiquantitative SEM/EDS element analysis of the failed carrier shaft material revealed a carbon steel composition. No contaminants were present on the fracture surface. Element Precision, wt% at.% 2σ K -Ratio Silicon 0.41 0.82 0.12 0.0015 More
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Published: 01 December 1992
Fig. 5 Standardless, semiquantitative SEM/EDS element analysis of the weld material revealed a type 300 stainless steel composition. Element Precision, wt.% at.% 2σ K -Ratio Silicon 1.35 2.63 0.17 0.0051 Chromium 17.84 18.72 0.52 0.2143 Iron 74.56 72.84 More
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Published: 01 December 2019
Fig. 6 ( a ) SEM image of coke in inner surface. ( b ) EDS analysis of ( a ). ( c ) SEM image of coke in outer surface. ( d ) EDS analysis of ( c ) More
Image
Published: 01 December 1993
Fig. 2 Standardless semi-quantitative SEM/EDS element analysis data and graph of typical corrosion residue present in some of the cracks in the eye of the second-stage impeller. The high sodium content was believed to be the corrosion component for the stress-corrosion cracks. Element More
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Published: 01 December 1993
Fig. 3 Standardless semi-quantitative SEM/EDS element analysis data and graph of a crack fracture surface. Base metal elements revealed that the impeller material was an AISI 4300 alloy steel. Element wt% at.% Silicon 0.27 0.53 Chromium 1.10 1.18 Manganese 0.88 More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001589
EISBN: 978-1-62708-235-8
... or particles during the plating. The possible sources of fibers were identified. The SEM/EDS analysis of fibers collected from the air duct filters correlated very well with the defect shape and the EDS profile collected from under the defect site. It appears that the fibers from air duct filters directly...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001770
EISBN: 978-1-62708-241-9
..., the tank began leaking along the weld bead, triggering a full-scale investigation; spectroscopy, optical and scanning electron microscopy, fractography, SEM-EDS analysis, and microhardness, tensile, and impact testing. The results revealed transgranular cracks in the HAZ and base plate, likely initiated...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001843
EISBN: 978-1-62708-241-9
... to determine what caused the change. The order stated that the connectors were to be coated with a layer of tin-bismuth (2% Bi) to guard against tin pest, a type of degradation that occurs at low temperatures. Based on the results of the investigation, which included SEM/EDS analysis, inductively coupled...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001328
EISBN: 978-1-62708-215-0
... the specifications of these filler metals. SEM/EDS analysis showed base metal grain boundary precipitates to he primarily chromium carbides, but some titanium carbides were also observed. Most apparent stringer compounds were titanium carbides (and titanium cyanonitrides), but chromium carbides were also...
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Published: 01 June 2019
Fig. 12 SEMs with EDS analysis showing the severe corrosion at ID of the Stage 3 tube. (a) Note the irregular shape of the corrosion products and loose/porous scale. (b) Note the embedded ash/silica particles. More
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Published: 01 June 2019
Fig. 13 SEMs with EDS analysis showing the severe corrosion at ID of the Stage 3 tube. (a) Note the porous nature of the corrosion products Cl (bright) and Si (dark). (b) Note the silica particles (smooth area). More
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001784
EISBN: 978-1-62708-241-9
... of narrow end of the failed wench socket Fig. 7 SEM micrograph of the same site as shown in Fig. 4 at lower magnification Abstract A 13/16-in. hex socket failed while in use. Analysis (hardness testing, optical and scanning electron microscopy, and EDS) revealed that the socket was made...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001066
EISBN: 978-1-62708-214-3
... and contained multiple branches ( Fig. 5 ), a form commonly associated with stress-corrosion cracking (SCC). Qualitative chemical analysis of the spool piece material was performed using SEM and energy-dispersive X-ray spectroscopy (EDS). Results indicated that the alloy composition was consistent with low...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001344
EISBN: 978-1-62708-215-0
...SEM-EDS analysis of a fracture surface Table 2 SEM-EDS analysis of a fracture surface Element Composition, % Iron 67.5 Chromium 17.0 Sodium 6.0 Nickel 6.0 Silicon 2.0 Calcium 1.0 Aluminum <0.5 Sulfur <0.5 Chemical analysis of the stainless...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001367
EISBN: 978-1-62708-215-0
... Standardless semi-quantitative SEM/EDS element analysis data and graph of typical corrosion residue present in some of the cracks in the eye of the second-stage impeller. The high sodium content was believed to be the corrosion component for the stress-corrosion cracks. Element wt...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001836
EISBN: 978-1-62708-241-9
... and Forming of Tubing , Metalworking: Sheet Forming , Vol 14B , ASM Handbook , Semiatin S.L. , Ed., ASM International , 2006 , p 461 – 471 . 10.31399/asm.hb.v14b.a0005135 Chemical Composition Metallographic Analysis SEMEDS Analysis Introduction Conclusions Final...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001771
EISBN: 978-1-62708-241-9
... carbide in grain boundary. ( b ) SEM image reveal grain boundary morphology. ( c , d ) the EDS analysis of chemical composition of carbide and matrix marked 1 and 2 on ( b ), respectively Fig. 4 ( a ) Optical microstructure shows continuous grain boundary and blocky carbide precipitated...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0090994
EISBN: 978-1-62708-225-9
... strength range was 1689 to 1793 MPa (245 to 260 ksi). The finished springs were to be shot peened for greater fatigue resistance. Investigation (visual inspection, 3x images, 2% nital etched 148x SEM images, chemical analysis, hardness testing, and EDS analysis) supported the conclusion that the springs...