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very high density metals

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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
... electron micrograph of surface of particulate disk showing ferrite particles covered with binder material Recently barium-ferrite and ferrous metal particles have been developed for increased data storage density. High density applications require high coercivity and a very fine particle size...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
... Fig. 6 A 1000 h creep modulus of several polymers as a function of temperature. PBT, polybutylene terephthalate; PC, polycarbonate; PPO, polyphenylene oxide; PVC, polyvinyl chloride; PP, polypropylene; HDPE, high-density polyethylene; T g , glass transition temperature Fig. 7 Isochronous...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003551
EISBN: 978-1-62708-180-1
... or MgO in solid solution) to avoid cracking on heating, due to monoclinic to tetragonal transformation in the temperature range of 1000 to 1200 °C (1830 to 2190 °F), with a large volumetric change. Properly prepared zirconia shapes have very high corrosion resistance and are not wetted by metals...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048772
EISBN: 978-1-62708-220-4
...-Corrosion Cracking , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 , p 823 – 860 10.31399/asm.hb.v11.a0003553 Examination of the fracture surfaces with a low-power stereomicroscope revealed that very little thinning of the metal had taken place...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006838
EISBN: 978-1-62708-329-4
...-affected zone on the component, high density, metallurgical bonding, minimal effects such as distortion or cracks in the part, and accurate deposition. For electron beam and welding heat sources, the coupling and thermal efficiency can be high. Fig. 6 Generic illustration of a metal additive...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006789
EISBN: 978-1-62708-295-2
... white cast iron, and WC-Co, and with hardnesses in excess of 600 kg/mm 2 display a very high abrasion resistance (even mild wear); in fact, abrasive wear in these materials is mainly restricted to the metallic matrix, whereas the hard phases resist the abrasive action. (However, if the applied load...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003571
EISBN: 978-1-62708-180-1
... such as metals. A polymer-polymer sliding pair, except in few instances, usually produces undesirable high friction and high wear conditions due to enhanced adhesion between the polymer. Also, poor conductivity of the polymers results in elevated temperature at the polymer/polymer interface, leading to melting...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001368
EISBN: 978-1-62708-215-0
... pits and craters covering the surface. Fig. 4 Subsurface flaw near ridges. (a) Subsurface flaw and fatigue crack. 2×. (b) Ridges separating the fatigue crack from the subsurface flaw. 11.56×. (c) Fracture surface of the subsurface flaw near the ridges. Note the high density of pits and craters...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001107
EISBN: 978-1-62708-214-3
... Metal dusting of heat-resistant alloys occurs in carbonaceous atmospheres at temperatures above 425 °C (800 °F), with very high activity in the range of 790 to 845 °C (1450 to 1550 °F)and above 925 °C (1700 °F) ( Fig. 6 ). Carbon adsorption and diffusion into the metal matrix induce the formation...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001783
EISBN: 978-1-62708-241-9
... composition is shown in Table 1 . It is stated to have a hardness of 50 Rockwell C (HRC). The hardness value for D2 ranges from 43 to 63 HRC, so it is assumed there may be historical data for choosing the value of 50 HRC which is very high compared to the aluminum bronze which has hardness of 98 HRB (20 HRC...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001514
EISBN: 978-1-62708-218-1
... a weld location taken from the separated rocker panel flange. The darker and small grained microstructure is that of the original condition of the sheet metal. The lighter colored regions showing grain refining and coarse grain structure, constitute a heat affected zone. This microstructure...
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
... waves of very high frequency being transmitted through metal and reflected at any boundary, such as a metal/air boundary at the surface of the metal, or a metal/crack boundary at a discontinuity within the part or component. High-frequency sound waves can detect small irregularities, but they are easily...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003567
EISBN: 978-1-62708-180-1
... Impingement on Two-Body Corrosive Wear Slurry Handling Sliding Wear Crushing and Grinding High-Temperature Processes Power-Generation Plants Dependence on Force Dependence on Abrasive Type Dependence on Galvanic Interaction between Minerals and Metal Alloys Role of Localized...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006829
EISBN: 978-1-62708-295-2
... of tribological transformed structure, or TTS). Adapted from Ref 42 . Reprinted with permission from Elsevier Fig. 16 Comparison between metals and ceramic coatings fretted against an alumina ball for similar lading conditions. HSS, high-strength steel. Adapted from Ref 42 Fig. 17...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003536
EISBN: 978-1-62708-180-1
... 1.2655 14 6 1.1694 13 7 1.0906 12 8 1.0336 11 9 1.0037 10 (a) a i values are symmetric with respect to α = 90° (see text for context). Source: Ref 22 Number density of processing defects in the tensile fracture surface of metal-matrix composite specimen with loading...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0091394
EISBN: 978-1-62708-227-3
... will grow in the direction preferred by gravity and will eventually penetrate the weld or pipe wall. The pitting rate can be very fast. Because only a microscopic amount of metal must be corroded to produce a leak, component failure is likewise fast. The third mode develops by crevices. Areas around...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006816
EISBN: 978-1-62708-329-4
... is >6 Unsupported parts may sag. Allows uniform flow of atmosphere through workload Load density High load density shields parts from heat source. Can cause excessive heat and contributes to nonuniform heating Part-to-part interactions Parts are soft at elevated temperature...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... cause atoms to pack efficiently (high packing densities). These arrangements exhibit planes of high atomic density, which contain close-packed directions. This results in the three lattices (fcc, bcc, hcp) being especially common for metallic materials. The higher symmetry of the cubic lattices relative...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001275
EISBN: 978-1-62708-215-0
...Abstract Abstract A high-density polyethylene (HDPE) natural gas distribution pipe (Grade PE 3306) failed by slow, stable crack growth while in residential service. The leak occurred at a location where a squeeze clamp had been used to close the pipe during maintenance. Failure analysis showed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001607
EISBN: 978-1-62708-231-0
... the rope did not conform to specifications; thus, an improper material was used. The inadequacy of the material was further confirmed by the high inclusion density. The failed wire rope contained a very high population of essentially Al-Ca-Ti silicates in the form of stringers. Such stringers...