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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
... Fig. 2 Schematic diagram of inductively coupled plasma optical emission spectroscopy system. RF, radio frequency. Source: Ref 3 Fig. 1 Schematic of spark emission spectroscopy system. Source: Ref 1 Abstract Identification of alloys using quantitative chemical analysis is...
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
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001717
EISBN: 978-1-62708-217-4
... visual inspection/light optical microscopy, metallography, electron microscopy, energy dispersive spectroscopy, chemical analysis, and mechanical testing. It was observed that the vacuum cadmium coating adjacent to the fracture plane had worn off and corroded in service, thus allowing pitting corrosion...
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 Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003534
EISBN: 978-1-62708-180-1
... attribute of AES is its ability to analyze extremely small features. Modern AES instruments with field-emission electron sources can produce secondary electron micrographs with spatial resolutions as small as 10 nm and can characterize sample features as small as 25 nm. Auger electron spectroscopy is...
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
... 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 (EDS). In general, x-ray emission is more pronounced for heavier elements, while the probability of Auger...
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
... 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 , indicate that the alloy closely matched ASTM A-470 (Grade 4) specifications. The effect of the anomalous 0.1% Cu on...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... Abstract This article reviews the analytical techniques most commonly used in plastic component failure analysis. These include the Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, thermomechanical analysis, and dynamic mechanical analysis...
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
... 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 using an SEM has undergone a revolution with the...
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
... coupled plasma spectrometry (ICP), and energy-dispersive spectroscopy (EDS) in a field emission scanning electron microscope (FE-SEM) were used to verify the microchemical composition. The fractured surface of the blade was examined using visual stereoscopy and a FE-SEM, while Vickers microhardness...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001583
EISBN: 978-1-62708-217-4
... ARL to verify the elemental composition of each of the retaining rods. The chemical composition was governed by AMS 5629. The material designated was precipitation hardened PH 13-8 Mo, heat treated to the H1050 condition. Inductively coupled plasma/atomic emission spectroscopy was utilized to...
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
... 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 used old stock pipe and the used new stock pipe met the specified AISI 304L chemical composition...
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
... history/length of the part were unknown. The part was specified to have been manufactured from Silicon Bronze Alloy UNS C86700. The chemical composition of the base material was determined by optical emission spectroscopy per Fed Test Standard 151B, Method 112.2. The part was initially examined...
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
... obtained by 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...
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
... optical emission spectroscopy (OES) to determine the alloy composition. Table 1 indicates that the tube was in compliance with the chemical requirements of ASTM A213 specifications for Grade 304H austenitic stainless steel. Table 1 Chemical analysis of the stainless steel Element...
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
... 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 that the tube met the compositional requirements for ASTM A209 Grade Tl superheater tubing. Table 1 Alloy...
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
... a constant power transmission of 250 kW (330 hp), the maximum and minimum transmitted torque is 2592 and 2130 N-m (1912 and 1571 ft-lbf), respectively. The torque amplitude and mean torque in this example are 232 and 2362 N-m (171 and 1742 ft-lbf), respectively. Via optical emission spectroscopy...
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
...)-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) can be...
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
... material using a Vickers microhardness tester at a load of 500 g. The hardness values were in the range from 159 to 190 and from 138 to 172 HV 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...