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homogenization

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Published: 01 June 2019
Fig. 4 Metal ingots removed from the bottom of the melter: (a) homogeneous ingot, (b) ingot containing irregularly shaped nodules or drips More
Image
Published: 01 December 1993
Fig. 7 Micrograph showing grain boundaries with carbide precipitates and a homogeneous precipitation of gamma phase. inside the grains. More
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Published: 01 December 1992
Fig. 5 Micrographs of the banded region of the MCC where homogeneous phases predominate that have compositions of 52 to 60% Cu, 12 to 15% Ag, and 27 to 32% Zr. (a) Backscatter mode. 1000×. (b) Secondary mode. 2000×. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001660
EISBN: 978-1-62708-236-5
... are discussed along with potential methods to eliminate these microstructural in homogeneities. Shear bands Threaded fasteners Ti-6Al-4V UNS R56406 Ductile fracture Threaded Ti-6Al-4V fasteners are used extensively by the aerospace industry for joining structural components. One popular type...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001667
EISBN: 978-1-62708-235-8
..., homogeneity, etc.) be obtained either before initial use of a component, or before the use of a component can be safely resumed. In this paper, the use of standard metallurgical laboratory equipment, and the procedures required to conduct nondestructive on-site metallographic analyses of engineering materials...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0047154
EISBN: 978-1-62708-223-5
... during forging. This evidence supported the conclusion that even through there was some indication of chemical segregation, the folds made during forging initiated the main crack. Furthermore, even if the steel had been more homogeneous, hardening cracks would probably have been promoted by the coarse...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001408
EISBN: 978-1-62708-220-4
... present to the gas a surface area considerably greater than that of a homogeneous material. Chlorine gas Combustion Compressors Corrosion environments Ignition Lubrication Piston rods Fe-0.35C (Other, general, or unspecified) corrosion It is known that under suitable conditions iron...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0089738
EISBN: 978-1-62708-235-8
... manufacturing the doubler collar so that it could be placed in intimate contact with the header duct, and a revised weld procedure was recommended to result in a smaller, controlled, homogeneous weld joint with less distortion. Heat exchanger tubes Inlet headers Stress concentration Undercutting...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001269
EISBN: 978-1-62708-215-0
... homogenization of the carbides in the resultant hob, and lower sulfur content. Carbides Coatings Hobbing cutters Microstructural effects Sulfur Wear M2 UNS T11302 Brittle fracture Background A gear manufacturer reported recurring premature failures of titanium nitrided M2 tool steel gear...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001811
EISBN: 978-1-62708-241-9
... to be homogenous and had no banded structure. However, x-ray diffraction analysis confirmed the presence of up to 6% retained austenite which likely caused the tube to buckle during the 910 °C heat treating procedure. tube buckling retained austenite bainitic steel distortion x-ray diffraction analysis...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006849
EISBN: 978-1-62708-395-9
... Abstract This article addresses some established protocols for characterizing thermoplastics and whether they are homogeneous resins, alloyed, or blended compositions or highly modified thermoplastic composites. It begins with a discussion on characterizing mechanical, rheological, and thermal...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006934
EISBN: 978-1-62708-395-9
... Abstract This article describes the general aspects of creep, stress relaxation, and yielding for homogeneous polymers. It then presents creep failure mechanisms in polymers. The article discusses extrapolative methods for the prediction of long-term creep failure in polymer materials...
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Published: 01 June 2019
Fig. 13 Center portion of pot cross-section in area E showing the initial stages of the homogenization of the banding; nital etch; 63×. More
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Published: 01 January 2002
Fig. 27 Section through a heat-resistant alloy forging showing a central discontinuity that resulted from insufficient homogenization during conversion. Step machining was used to reveal the location of the rupture; original diameter is at right. More
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Published: 30 August 2021
Fig. 15 Section through a heat-resistant alloy forging showing a central discontinuity that resulted from insufficient homogenization during conversion. Step machining was used to reveal the location of the rupture; original diameter is at right. More
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Published: 15 May 2022
) with necking and cold drawing, (4) above the glass transition temperature with homogenous deformation (quasi-rubber-like behavior) More
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Published: 01 June 2019
Fig. 5 Examples of some of the microstructures of the failed couplings (transverse, T; longitudinal, L). (a) A fine, homogeneous dispersion of the intermetallic precipitate phases κ IV , κ IIII , and κ III throughout the α matrix. (b) α-matrix grain boundaries decorated with an intermittent More
Image
Published: 01 January 2002
indication of an incipient crack. (b) Fracture surface, with beach marks indicating fracture origin at rough-ground surface. (c) Normal, homogeneous structure of an unused rod examined for comparison; this structure contains equal amounts of ferrite (light) and pearlite (dark). (d) Unsatisfactory structure More
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Published: 01 June 2019
indication of an incipient crack. (b) Fracture surface, with beach marks indicating fracture origin at rough-ground surface. (c) Normal, homogeneous structure of an unused rod examined for comparison; this structure contains equal amounts of ferrite (light) and pearlite (dark). (d) Unsatisfactory structure More
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001840
EISBN: 978-1-62708-241-9
... analysis of fractured surface in sample No. 4 In high strain rate, deformations like explosive deformation, depending on amount of strain and rate of strain, materials can respond to deformation through two main mechanisms: uniform or homogenous deformation and localized plastic deformation [ 12...