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Optical emission spectroscopy

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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
... covers the operating principles, applications, advantages, and disadvantages of optical emission spectroscopy (OES), inductively coupled plasma optical emission spectroscopy (ICP-OES), X-ray spectroscopy, and ion chromatography (IC). In addition, information on combustion analysis and inert gas fusion...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001753
EISBN: 978-1-62708-241-9
... composition of the sand-cast component was identified via optical emission spectroscopy and is comparable to an aluminum sand-cast alloy, AA 712.0. Metallographic evaluation via optical microscopy and scanning electron microscopy revealed a high degree of porosity in the microstructure as well as the presence...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001827
EISBN: 978-1-62708-241-9
.... Each component was analyzed using optical and scanning electron microscopy, energy dispersive spectroscopy, mechanical testing, and nondestructive techniques. The results of the investigation provide insights on the influence of temperature, composition, and microstructure and the contributing effects...
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
... were subsequently welded over with 308 stainless steel filler wire and the base plate was replaced with new material. Soon after, the tank began leaking along the weld bead, triggering a full-scale investigation; spectroscopy, optical and scanning electron microscopy, fractography, SEM-EDS analysis...
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
... – 4 ), AES of some insulators is possible. Due to the damaging nature of electron beams, AES on organic materials is seldom performed. A competing process to Auger electron generation is that of x-ray emission, the analytical signal for the technique known as energy-dispersive x-ray spectroscopy...
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
...). 630× Fig. 6 Higher-magnification view of Fig. 5 . 1260× Fig. 7 Multiple branching in the stress cracks, which are filled with iron oxide. Picral etch. 126× Elemental analysis of the bulk alloy was performed using optical emission spectroscopy. Results, shown in Table 1...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006769
EISBN: 978-1-62708-295-2
... system and thus are more expensive than a conventional or thermal-field-emission instrument. All SEMs can be divided into three basic systems of components: the electron optical column, signal detection and display equipment, and the vacuum system. Preparation of samples for observation...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001757
EISBN: 978-1-62708-241-9
... procedures, some specimens were prepared from the fractured blade. Optical microscopy was used to determine the microstructures of a blade, and energy-dispersive X-ray fluorescence, inductively coupled plasma spectrometry (ICP), and energy-dispersive spectroscopy (EDS) in a field emission scanning electron...
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
... and part martensitic matrix in corroded areas. 63× Fig. 7 Etched view corresponding to Fig. 4 of a typical area in the weld zone, showing approximately 3–5% ferrite in an austenitic matrix. 63× Optical emission spectroscopy and combustion (carbon and sulfur) results verified that the...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001772
EISBN: 978-1-62708-241-9
... composition of the base material was determined by optical emission spectroscopy per Fed Test Standard 151B, Method 112.2. The part was initially examined visually and from 10–30X with a stereoscope. The surfaces of the part were qualitatively analyzed with the aid of energy dispersive x-ray spectroscopy (EDS...
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
... electrolytic etch. 152× Fig. 4 Fine details of the cracking damage in the stainless steel. 10% oxalic acid, electrolytic etch. 304× A portion of the tubing was chemically analyzed by optical emission spectroscopy (OES) to determine the alloy composition. Table 1 indicates that the tube was in...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001793
EISBN: 978-1-62708-241-9
... optical emission spectroscopy and weld metal by positive material identification method. A section of the pipe containing the welded wire spacer was cut to transverse observation of the microstructure and quality of weld. This section was ground and polished and etched with Nital 2% solution...
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
... (NIST)-traceable standard composition. Equipment used for the analysis must receive proper maintenance, including assurance that adequate calibrations have been upheld. Methods such as x-ray fluorescence (XRF), arc or spark optical emission spectroscopy (OES), and inductively coupled plasma OES (ICP-OES...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001337
EISBN: 978-1-62708-215-0
... chromium to be immune to carbide graphitization. Additionally, T11 and T22 offer enhanced creep/oxidation resistance properties. A portion of the superheater tube was chemically analyzed by optical emission spectroscopy (OES) to confirm the alloy composition. The results, given in Table 1 , indicate...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001005
EISBN: 978-1-62708-215-0
... chemical composition of the failed steering arms was determined using optical emission spectroscopy for most of the alloy elements and a Leco carbon/sulfur analyzer for carbon and sulfur content. The latter analysis required the use of drill flakes for ignition and the subsequent analysis of the combustion...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001764
EISBN: 978-1-62708-241-9
...-lbf), respectively. Via optical emission spectroscopy, an investigation of the chemistry of the primary structural material employed in the drive shaft was conducted. The investigation was a comparison between material from a failed drive shaft (Design 6) and material from two nonfailed drive...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001774
EISBN: 978-1-62708-241-9
... for the ring and flange material, respectively. The composition of the material of construction of the ring and the flange was determined by optical emission spectroscopy. The results obtained are given in Table 2 . Analysis confirmed that the ring and flange were manufactured using type 347 and...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001330
EISBN: 978-1-62708-215-0
... suggests these sections were installed at the same time. When the superheater was retubed, the entire superheater assembly should have been upgraded to Grade T22 material. Portions of tube 1 and 2 from either side of the weld joint were tested for chemical analysis using optical emission spectroscopy...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001286
EISBN: 978-1-62708-215-0
... range of 121 to 173 HB, anywhere on the component, was specified. The 6.4 mm (0.25 in.) radius was not specified to be lightly rolled. Optical emission spectroscopy and combustion (carbon and sulfur) results verified that the used cast brake disc met the specified ASTM A395 60-40-18 chemical...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001794
EISBN: 978-1-62708-241-9
... optical emission spectroscopy on a roughly polished specimen cut at the part’s surface. The obtained results, which are presented in Table 1 , indicate that the shaft is made of grade AISI 4340, as per the design requirements. Table 1 Chemical analysis C Si Mn P S Ni Cr Mo Grade...