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quantitative analysis

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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
...Abstract Abstract Identification of alloys using quantitative chemical analysis is an essential step during a metallurgical failure analysis process. There are several methods available for quantitative analysis of metal alloys, and the analyst should carefully approach selection of the method...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001532
EISBN: 978-1-62708-232-7
... features influencing ICDP roll quality, viz. characteristics of graphite, carbides, martensite, etc., have been extensively studied through optical microscopy, quantitative image analysis (QIA), and electron-probe microanalysis (EPMA). These are discussed in the context of spalling propensity and roll life...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001787
EISBN: 978-1-62708-241-9
...Abstract Abstract A masonry type drill bit, designed for impact drilling in rock, fractured after a short time in service. Samples of the failed bit were analyzed using optical and scanning electron microscopy, quantitative metallography, and chemical analysis. The composition was found...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001136
EISBN: 978-1-62708-229-7
.... In reality, however, the fan had experienced at most approximately 100 start stop cycles. Thus start stop cyclic stresses were ruled out as the major cause of fatigue cracking and a more rigorous analysis, including quantitative fractography, was undertaken. Compact tension samples of full thickness...
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
... Handbook , ASM International , 2002 , p 700 – 727 10.31399/asm.hb.v11.a0003544 • Gokhale A.M. , Quantitative Fractography , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 , p 538 – 556 10.31399/asm.hb.v11.a0003536 During the use...
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
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001239
EISBN: 978-1-62708-232-7
... in spots as could be seen from the fractures. At a slightly oxidized spot, chips were taken for an analysis of the wire composition after the oxide layer was removed from the surface as far as possible. Quantitative analysis showed the following (wt.%): Chromium contents was higher while nickel...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001482
EISBN: 978-1-62708-229-7
... for the purpose of analysis. Although the amount obtained was not sufficient to allow of a quantitative analysis, the deposit in the main was found to consist of iron oxide, the soluble portion giving an indication of the presence of copper. It was concluded that the cracking that occurred at the time of re...
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 Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003536
EISBN: 978-1-62708-180-1
... – 14 11. Li X. W. , Tian J. F. , Kang Y. , and Wang Z. G. , Quantitative Analysis of Fracture Surface Roughness , Scr. Metall. Mater. , Vol 33 , 1995 , p 803 – 809 12. Baggerly R. G. and Archbold T. , Quantitative Fractography of Fatigue Fracture...
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
... 4. “ Standard Specification for High-Strength Low-Alloy Columbian-Vanadium Structural Steel ,” A572 – A515 , ASTM 5. “ Standard Guide for Quantitative Analysis by Energy Dispersive Spectroscopy ,” E1508 – E112a , ASTM Depending on the industry and country corresponding...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001521
EISBN: 978-1-62708-229-7
... . Semi-quantitative analysis of the gray phase revealed its composition to be 86Cu, 13O, and 1Cl. Similar analysis of the matrix revealed 70.0Cu, 25.6Zn, 3.4O, and 1Sn, which is in agreement with the product check analysis. Fig. 6 Based on electron probe micro-analysis using elemental X-ray maps...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001658
EISBN: 978-1-62708-229-7
... were selected and, again using the electron microprobe for quantitative analysis, the chromium concentration in the dense layer of each particle was measured. The values were between 3.1% Cr and 4.4% Cr. The metal-side layer of the oxide growing on a 2- 1 4 % Cr 1% Mo tube contained 3.0...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001676
EISBN: 978-1-62708-229-7
... that the surface layer contained nitrogen and possibly some carbon. A quantitative analysis of the major elements in the surface layer is shown in Figure 7 . The compositions were determined as a line scan across the layer and perpendicular to the surface (see Figure 7a ). The results of the line scan are shown...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001848
EISBN: 978-1-62708-241-9
... Introduction Industrial Problem and Experimental Procedure Result and Discussion Conclusion Acknowledgments References References 1. Chastel Y. , Caillet N. , Bouchard P.O. : Quantitative analysis of the impact of forging operations on fatigue properties of steel...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003529
EISBN: 978-1-62708-180-1
... for an economy bulk chemical analysis. For this reason, analysis of suspected contaminants contained within a crumbly corrosion product on a fracture surface should generally be confined to the strictly qualitative mode. Interpreting the quantitative results from such a test would be very difficult at best...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001535
EISBN: 978-1-62708-232-7
... to corroborate phase identification. Unetched specimens were also examined to observe nonmetallic inclusions. Automatic quantitative image analysis was carried out on polished and etched microsections to determine the volume percent of alloy carbides dispersed in the tempered martensite. The sample...
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 Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006771
EISBN: 978-1-62708-295-2
.... and Kurahashi M. , Quantitative Analysis of Auger Electron Spectroscopy by Curve Synthesis Method Based on Non-Linear Least Squares Fitting , J. Electron Spectrosc. Relat. Phenom. , Vol 46 ( No. 1 ), 1988 , p 185 – 190 10.1016/0368-2048(88)80017-3 7. Moulder J. et al. , in Handbook...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001081
EISBN: 978-1-62708-214-3
... under estimated, which led to low-cycle fatigue cracking earlier than expected. Fracture mechanics analysis of the disks was carried out to assess their damage tolerance and to predict safe inspection intervals. Fatigue life Fracture mechanics Gas turbine engines Jet planes Low-cycle fatigue...