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By Bo Hu
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006102
EISBN: 978-1-62708-175-7
... Fig. 4 Particle images of commercial electrolytic iron powders (a) A and (b) B. Top row: SEM images; bottom row: cross section optical microscope images Abstract Abstract Particle image analysis of metal powders can be easily performed with optical macroscopes and microscopes. This article...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005729
EISBN: 978-1-62708-171-9
..., 4, and 5 Fig. 69 Zoomed region in upper portion of curve in Fig. 68 , showing no bending point of the histogram, suggesting the onset of porosity, and showing that image analysis operator A and B disagree as to where to set the threshold Fig. 70 Bending of the cumulative number...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003758
EISBN: 978-1-62708-177-1
... visual system Computer-aided image analysis Human fatigue after prolonged work Very sensitive Insensitive Sensitivity to illusions (we see what we want to see) Very sensitive Insensitive Required image quality Medium quality acceptable for quantitative analysis Highest quality...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001755
EISBN: 978-1-62708-178-8
...Abstract Abstract This article describes the various steps involved in image analysis, including sample selection and preparation, image preprocessing, measurement, and data analysis and output. It reviews various types of image analyzers and explains how operator bias and poor sample selection...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001237
EISBN: 978-1-62708-170-2
...Quantitative image analysis Table 1 Quantitative image analysis Field measurements (stereology) Object measurements (feature measurement) Area fraction Area Area percent Length ASTM E 112 grain size Width Count Aspect ratio Perimeter Feret measurements Mean...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006439
EISBN: 978-1-62708-190-0
... ), the distance ( R ) and angle (φ) to all points of the outline are written into a voting table. Abstract Abstract Machine vision, also referred to as computer vision or intelligent vision, is a means of simulating the image recognition and analysis capabilities of the human eye and brain system...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003720
EISBN: 978-1-62708-177-1
... explains the characteristics of solidification, transformation, deformation structures, and discontinuities that are present in a microstructure. It concludes with information on image analysis. References References 1. Sorby H.C. , in How to Work with the Microscope , London , 1867...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006096
EISBN: 978-1-62708-175-7
... process for particle size measurement, which is a key step in the measurement of particle size distributions. Common particle size measuring techniques discussed in this article include sieve analysis, quantitative image analysis, laser diffraction, sedimentation methods, aerodynamic time-of-flight method...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005728
EISBN: 978-1-62708-171-9
... that are generally borrowed from other materials science disciplines. This article focuses on commonly used testing and characterization methods: metallography, image analysis, hardness, tensile adhesion testing, corrosion testing, x-ray diffraction, non-destructive testing, and powder characterization. It provides...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006567
EISBN: 978-1-62708-290-7
... 75 No. 230 63 No. 270 53 No. 325 45 No. 400 38 No. 450 32 No. 500 25 No. 635 20 List of shape factors commonly applied to morphological image analysis Table 3 List of shape factors commonly applied to morphological image analysis Morphological shape...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003757
EISBN: 978-1-62708-177-1
...Abstract Abstract This article reviews the main theoretical and practical aspects of sequence normally followed in digital image-acquisition, processing, analysis, and output for material characterization. It discusses the main methods of digital imaging, image processing, and analysis...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006456
EISBN: 978-1-62708-190-0
.... It also provides information on digital radiography, image processing and analysis, dual-energy imaging, and partial angle imaging, of a CT system. computed tomography digital radiography dual-energy imaging film radiography partial angle imaging real-time radiography X-ray computed tomography...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006116
EISBN: 978-1-62708-175-7
...Abstract Abstract Metallographic analysis is primarily a collection of visual and imaging techniques that provide an insight into the background of a material or part and its behavior. Metallic specimens, both porous and pore-free, are opaque, and as a result, an optical examination must...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003789
EISBN: 978-1-62708-177-1
..., meant to preserve pore structures and keep them open for analysis. The article compares and contrasts the microstructures of nearly 50 powder metal alloys, using them to illustrate the effect of consolidation and compaction methods as well as particle size, composition, and shape. It discusses imaging...
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 Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003795
EISBN: 978-1-62708-177-1
.... Abstract Abstract Microstructural analysis reveals many important details about the qualities and capabilities of high-performance ceramics. This article explains how to prepare ceramic samples for imaging and the imaging technologies normally used. It describes sectioning, mounting, grinding...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006682
EISBN: 978-1-62708-213-6
.... L L = 4.9808 (%S) + 0.1904. Correlation coefficient, r = 0.972 Fig. 18 Image analysis measurements were performed with three objectives using three rows of 30 contiguous fields and a total of 12 sets per specimen (1080 fields/specimen). The area evaluated was 165.8, 42.69, and 6.63 mm...
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
... and the corresponding images that aid in the characterization of the failures. The article describes the methods used for determining the molecular weight of a plastic resin. It explains the use of mechanical testing in failure analysis and also describes the considerations in the selection and use of test methods...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003244
EISBN: 978-1-62708-199-3
... Abstract This article describes the methods and equipments involved in the preparation of specimens for examination by light optical microscopy, scanning electron microscopy, electron microprobe analysis for microindentation hardness testing, and for quantification of microstructural parameters...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003244
EISBN: 978-1-62708-199-3
... cover the preparation of specimens for examination by light optical microscopy (LOM), scanning electron microscopy (SEM), electron microprobe analysis (EMPA) for microindentation hardness testing, and for quantification of microstructural parameters, either manually or by the use of image analyzers...