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particulates

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Published: 01 January 2002
Fig. 7 Particulate erosion of a ductile steel impeller by an abrasive catalyst. (a) 0.25×. (b) 1× More
Image
Published: 15 January 2021
Fig. 7 Particulate erosion of a ductile steel impeller by an abrasive catalyst. Original magnification: (a) 0.25×, (b) 1× More
Image
Published: 15 January 2021
Fig. 24 Distribution of particulate matter (PM) around the world illustrated in global satellite-derived map of PM 2.5 averaged over 2001 to 2006. (PM 2.5 indicates particulate particles less than 2.5 μm in size.) Eastern China, Northern India, the Middle East, and Northern Africa have very More
Image
Published: 01 June 2019
Fig. 7 Scanning electron micrograph of surface of particulate disk showing ferrite particles covered with binder material More
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Published: 01 June 2019
Fig. 9 Scanning electron micrograph of hard error area of particulate hard disk More
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003572
EISBN: 978-1-62708-180-1
... Abstract This article reviews the abrasive and adhesive wear failure of several types of reinforced polymers, including particulate-reinforced polymers, short-fiber reinforced polymers (SFRP), continuous unidirectional fiber reinforced polymers (FRP), particulate-filled composites, mixed...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006813
EISBN: 978-1-62708-329-4
... Abstract Heat exchangers are devices used to transfer thermal energy between two or more fluids, between a solid surface and a fluid, or between a solid particulate and a fluid at different temperatures. This article first addresses the causes of failures in heat exchangers. It then provides...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001832
EISBN: 978-1-62708-241-9
... particulate air filters. The failure analysis investigation concluded that nitrate-induced stress-corrosion cracking was the cause of the failure. vent pipe nitrate-induced stress-corrosion cracking welding defects galvanized low-carbon steel MnS inclusions ion-coupled plasma-emission spectroscopy...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001516
EISBN: 978-1-62708-234-1
... the hard substrate does not absorb any impact energy as opposed to the polymeric flexible substrate which presents a large damping effect. Fig. 6 Scanning electron micrograph of surface of thin film disk showing scratches and cracks in coating due to head crash of head in Fig. 4 Particulate...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0065826
EISBN: 978-1-62708-233-4
... the particulate matter from the gas. Wires began failing about one year after start-up of the BOF shop. The frequency of failures varied in the different zones. Figure 1 shows an example of an unwrapped 1008 wire and two views of a failed wire. The maintenance metallurgist determined that the 1008 wires...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006869
EISBN: 978-1-62708-395-9
.... Reinforcements (fibrous or particulate) generally are used to increase load-carrying capacity, strength, resistance to creep, and wear. Limitations of strength and thermal conductivity can be overcome efficiently by selecting the right reinforcements and fillers in the appropriate amount, combination...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001616
EISBN: 978-1-62708-229-7
... revealed a high concentration of corrosion products ( Fig. 12 and 13 ). Ash or silica particles were adhering to the scale ( Fig. 12 ), which suggests that the particulate matter in the flue gas had settled inside the tube at this stage. The scale inside the tube was more porous ( Fig. 13 ) and consisted...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006937
EISBN: 978-1-62708-395-9
... the ratio of transmitted light to incident light and works when haze becomes significant because of microscopic surface irregularities. The evaluation of contamination in a transparent or translucent material may be for either optical or cosmetic reasons. Cosmetic particulate contamination is usually...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001841
EISBN: 978-1-62708-241-9
... of ultrasonic cleaning-induced fatigue on small parts. However, the ability to produce surfaces free of particulates and contaminates is important to the electronics manufacturing industry. Additionally, these large-scale electronics cleaning processes are also subjected to stricter environmental controls. Due...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003568
EISBN: 978-1-62708-180-1
... out by Finnie ( Ref 82 ). Particulate erosion of a ductile steel impeller by a catalytic fluid that was not expected to be erosive is shown in Fig. 7 . Fig. 7 Particulate erosion of a ductile steel impeller by an abrasive catalyst. (a) 0.25×. (b) 1× Erosion-resistant metals include...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006850
EISBN: 978-1-62708-395-9
... of a polyetheretherketone (PEEK)-matrix composite with 20% (by volume) PTFE particulates showed that solid-state lubricant PTFE particulates in the PEEK matrix decreased the PTFE/PEEK composite friction coefficient and wear rate appreciably by continuous formation of PTFE transfer films over the contact surface between...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001265
EISBN: 978-1-62708-215-0
.... Once free, these beads migrated throughout the joint capsule and became embedded in the polyethylene articular cup. Figure 4 shows a severely worn polyethylene cup with titanium beads embedded in the surface. The particulate debris resulting from this wear process can have a detrimental effect...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006795
EISBN: 978-1-62708-295-2
... angles to the surface. Such abrasion attacks ductile materials much more readily than it does hard, relatively brittle materials, as pointed out by Finnie ( Ref 90 ). Particulate erosion of a ductile steel impeller by a catalytic fluid that was not expected to be erosive is shown in Fig. 7 . Fig. 7...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001683
EISBN: 978-1-62708-234-1
... for about one year was contaminated with microorganisms during the initial deionization treatments as a result of contaminated filters. No check of microorganism content was conducted prior to use. The water removed from the recirculating water system was brown and contained rust particulate. Water...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006824
EISBN: 978-1-62708-329-4
... and material loss ( Ref 10 ). The source of erosive media affecting the gas turbine compressor is airborne particulate in the environment surrounding the turbine. Solid-particle erosion of steam turbines is primarily the result of exfoliated scale, which accumulates on the surfaces of boiler tubes upstream...