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qualitative analysis

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001012
EISBN: 978-1-62708-234-1
... failures, with the cracks starting on the inside surfaces of the tubes. There was no known corrosive agent in the system, and no other corrosion damage could be found. Qualitative tests and spectrographic analysis gave a positive indication for mercury. The spacing of the cracks, the branched intergranular...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048777
EISBN: 978-1-62708-229-7
..., indicative of pre-existing cracks, were revealed by examination of the fracture surface at the drain grooves arc gouged at the nozzle sites. A thin layer of material with a dendritic structure was observed at the groove surface. The dendritic layer was revealed by qualitative microprobe analysis to contain...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001605
EISBN: 978-1-62708-217-4
...Abstract Abstract After a quick-release fitting of an ejection seat broke, an investigation was performed to determine the manner and cause of crack propagation. Most fractography-based investigations aim to characterize only qualitative characteristics, such as the fracture orientation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006770
EISBN: 978-1-62708-295-2
...). In most applications for failure analysis, qualitative results are adequate, but the method can determine quantitative elemental compositions to a precision of 0.01 wt% with relative accuracies of ±5%, depending on the specific material, type of x-ray detector used, the method of data analysis employed...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001076
EISBN: 978-1-62708-214-3
... sectioned for metallographic study (see Fig. 7 ). 3.7×. Fig. 7 Cross section from area “B” in Fig. 3 . Arrow points to deposit of silver-sulfur compound. Unetched. 39×. An energy-dispersive spectroscopy (EDS) qualitative analysis detected a large quantity of sulfur, as well...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006759
EISBN: 978-1-62708-295-2
... Treatment Effects on Bulk Chemical Analysis Quantitative versus Qualitative Bulk Chemical Analysis In Situ and Ex Situ Bulk Chemical Analysis of Metals Often in failure analysis, the fractographic features of a part need to be analyzed at the micron scale in an SEM to determine the failure...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001329
EISBN: 978-1-62708-215-0
... area of dealloying. Etched Material and Weld A qualitative chemical analysis was performed on the pipe material, dealloyed area, and casting material using energy-dispersive spectroscopy (EDS). This analytical technique is capable of performing elemental analysis of microvolumes, typically...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001336
EISBN: 978-1-62708-215-0
... 0.02 0.01 NR (a) NR, no requirement Corrosion Deposits Qualitative energy-dispersive spectroscopy (EDS) analysis of the typical clean pipe and the typical pipe corrosion products found in the unetched transverse metallographic cross section of the used new stock pipe clearly...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006766
EISBN: 978-1-62708-295-2
... for selected wavelengths. Thus, the characteristic emission spectrum forms the basis for qualitative elemental analysis, and the measurement of intensities of the emission lines forms the basis of quantitative elemental analysis ( Ref 2 ). There are several OES methods that can be used for metal analysis...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001098
EISBN: 978-1-62708-214-3
... No. 1 and 4 were examined in situ using energy-dispersive X-ray spectroscopy (EDS). EDS provides qualitative elemental analysis of materials under SEM examination based on the characteristic energies of X-rays produced by interaction with an electron beam. EDS can normally detect elements of atomic...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003501
EISBN: 978-1-62708-180-1
... specification (or functions) and the underlying physical concept and preliminary layout to achieve the intended functions A detailed design stage involving both the qualitative definition of part configuration and the quantitative analysis of design parameters (e.g., dimensions, tolerances, materials...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001649
EISBN: 978-1-62708-234-1
...Abstract Abstract Two titanium alloy wing attachment bolts from a commercial jetliner failed during the course of a routine service operation. Failure of the bolts occurred during the re-torque process as the wing was being reattached. Metallurgical failure analysis indicated that the fracture...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001236
EISBN: 978-1-62708-218-1
... The cylinder lining under examination had suffered localised damage on the cooling water side leading to serration of the edges and heavy pitting as shown in Fig. 1 . Beyond this heavily damaged zone, the external wall was coated with deposits shown by qualitative chemical analysis to consist principally...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c9001574
EISBN: 978-1-62708-223-5
.... , Lefebuve M. , Gapart J.C. , Tournier C. , Peyre J.P. , Cherry P. , Pavy J.C. and Tessier J.J. , Qualite Des Depots Sous Vide Rapp . D'Etude 107040, Cetim , FRANCE , September 1988 . Selected References Selected References • Vander Voort G.F...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001824
EISBN: 978-1-62708-241-9
... compose of iron with minimal Ni and Cr oxide (FeO), iron sulfide (FeS), and carbonate (FeCO 3 ), in addition to the silicon oxide SiO 2 , which accumulated from the sand grains within the water. Qualitative and quantitative analysis of corrosion products collected from the failed bolts using SEM-EDAX...
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
... in.) length of spool piece was sent for analysis. Visual Scanning Electron Microscopy/Fractography Corrosion Patterns Microstructural Analysis Qualitative chemical analysis of the spool piece material was performed using SEM and energy-dispersive X-ray spectroscopy (EDS). Results indicated...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001102
EISBN: 978-1-62708-214-3
... Metal Induced Embrittlement , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 , p 861 – 867 10.31399/asm.hb.v11.a0003554 Four cadmium-plated studs failed unexpectedly in a nil-ductility manner. The studs were made of low-alloy steel heat treated to 27...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001107
EISBN: 978-1-62708-214-3
... of inadequate annealing after cold rolling. This higher-energy structure would favor accelerated attack. Fig. 5 Micrograph of unaffected areas, showing the composite grain structure. Etched with glyceregia. 32×. Material Qualitative chemical analysis of the liner material was performed using...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001354
EISBN: 978-1-62708-215-0
... Testing Procedure and Results Conclusion and Recommendations Selected Reference Selected Reference • Warke W. R. , Stress-Corrosion Cracking , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 , p 823 – 860 10.31399/asm.hb.v11.a0003553...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048846
EISBN: 978-1-62708-234-1
...). Investigation Conclusions Selected References Selected References • Creep and Stress Rupture Failures, Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 , p 728 – 737 10.31399/asm.hb.v11.a0003545 • Lampman S. , Intergranular Fracture , Failure...