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particle image analysis

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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
... than the iron particles (3A and 7). Note also that the fibers seen in (a) are invisible in this backscatter imaging mode. The SEM backscatter mode is often useful for rough composition analysis. The backscattered image in Fig. 1(b) provides a fast and economical method of getting a general...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0092101
EISBN: 978-1-62708-234-1
... Abstract An antifriction bearing made from a nylon/ polyethylene blend failed. The bearing came into contact with a steel shaft. Investigation (visual inspection and 417X images) supported the conclusion that movement of the shaft against the bearing caused abrasion due to fine iron oxide...
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...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001779
EISBN: 978-1-62708-241-9
... from critical areas of the pump were examined using optical and scanning electron microscopy, electrochemical analysis, and tensile testing. Based on microstructure and morphology, estimated corrosion rates, and particle concentrations in the feedwater, it was concluded that cavitation and erosion were...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006763
EISBN: 978-1-62708-295-2
... and features observed during a failure analysis investigation is photography. Failure analysis photographic imaging is a combination of both science and art; experience and proper imaging techniques are required to produce an accurate and meaningful fracture surface photograph. This article reviews...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001819
EISBN: 978-1-62708-241-9
... and nonmetallic inclusion particles are clearly visible in both sections. In Fig. 6 (transverse section image) the average austenitic grain size is about 50 μm, which can be considered a normal value, since in most austenitic stainless steels used for this kind of application the average grain size varies...
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
.... Microstructural issues influencing roll quality, such as characteristics of carbides, tempered martensite, retained austenite, etc., have been extensively studied through optical and scanning electron microscopy, electron-probe microanalysis, image analysis, and x-ray diffractometry. These are discussed...
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 Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... of detecting surface discontinuities by magnetic-particle inspection, liquid penetrant inspection, and eddy-current testing. The major NDE methods for internal (volumetric) inspection in failure analysis also are described. eddy-current testing liquid penetrant inspection magnetic-particle inspection...
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
... interests of the user. Scanning electron microscopes have been found particularly useful in failure analysis investigations. This is true for a number of reasons, the most prominent being the ability of the SEM to image large, nonflat samples from low to high magnifications (approximately 10× to greater...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006943
EISBN: 978-1-62708-395-9
..., metallic particles, and others that are added to plastic resins. Fillers are discussed in more detail in the article “ Fundamentals of Polymer Additives ” in this Volume. Two additional signals generated by electron beams that are valuable in the analysis of materials are Auger electrons...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003533
EISBN: 978-1-62708-180-1
..., an SEM can be designed to enhance particular capabilities. For example, proper choice of the electron source can be used to enhance imaging, while changing the types of x-ray detectors can provide better chemical analysis. Modifying the vacuum system can allow examination of a wide range of sample types...
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
..., molecular Strengths Ultimate small area analysis, imaging Ease of use, quantification Chemical and molecular analysis, imaging Limitations Semiconductive Very few Quantification difficult Major applications Semiconductors, electronics All industries Polymers, contamination, trace metal...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006851
EISBN: 978-1-62708-395-9
... digital camera. It covers basic photographic principles and manipulation of settings that assist in producing high-quality images. The need for accurate photographic documentation in failure analysis is also presented. failure analysis photographic documentation photography professional digital...
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
... unsintered particles low carbon steel longitudinal crack SEM/EDS analysis chemical composition low carbon steel (low carbon steel, general) Introduction Properly heat treated alloy steels can make durable wrench sockets. Materials selection of such a part is well established since the only...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001852
EISBN: 978-1-62708-241-9
... within the SEM chamber may well have influenced the results. The second phase particles were also measured ( Fig. 2 ). The element analyses of spectrums shown in this image ( Fig. 2 ) are given in Table 2 in terms of weight percentage. Following finally polishing using colloidal silica in a vibratory...
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
... of sulfur-rich and iron-rich scale on a corroded steel pipe. BEI, backscattered electron imaging When failed components cannot be processed to obtain samples suitable for examination in the SEM, the handheld XRF instruments can be valuable tools for failure analysis. The most popular use...
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
... The crack samples were subjected to SEM–EDS analysis to insure the presence of copper at the grain boundary ( Fig. 3 ). EDS spectra show the prominent peaks of copper entrapment at grain boundaries in the cracked region. The white particle shows the presence of copper at the grain boundary in the crack...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006758
EISBN: 978-1-62708-295-2
... particle testing. It covers the effects of various factors on the properties of the part that may impact failure analysis, describes the characterization of damage modes and crack sizes, and finally discusses the processes involved in application of NDE results to failure analysis. crack sizes...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001381
EISBN: 978-1-62708-215-0
... shows the two mating halves of-the-fracture. Figure 5 shows closeup views of the fracture initiation region. The white inclusions were nonmetallic particles that were high in calcium. Figure 6 illustrates a ductile mode of failure elsewhere on the fracture surface. The ductile dimples exhibit...