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temperature coefficient of resistance

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001712
EISBN: 978-1-62708-234-1
... −2.1110 0.00 round 2ndary ppts 0.0030 −0.011 −0.2453 2300 0.6864 0.0209 −7.7529 0.32 A regression analysis was performed on the results of these experiments. From this analysis, coefficients were created to quantify the resistance to nitridation that each element provided to the heat...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001788
EISBN: 978-1-62708-241-9
.... Such behavior is likely associated with billet flow stress, which reduces with temperature and increases with strain rate. High-flow stress results in high die stresses/strains and hence more susceptible to short life. Small die fillet radius severely reduces die life due to more resistance to flow at die entry...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001602
EISBN: 978-1-62708-229-7
... (corresponding to the range of action of accelerated corrosion at low temperature—type II) should have a special coating (chromium or silicon rich) designed to improve the resistance to corrosion. 11 Corrosion can also be minimized if care is taken to ensure the high quality of the fuel delivery, handling...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001570
EISBN: 978-1-62708-220-4
... in the thermal expansion coefficient of carbon steel and titanium might have played an important part in the loosening of the joint. The thermal expansion coefficient of carbon steel is over 30% greater than that of titanium within the operating temperature range of the heat exchanger 3 . As the exchanger...
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
... 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 and rapid wear. Therefore...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001817
EISBN: 978-1-62708-180-1
... failures where adjacent materials differ significantly in composition and coefficient of thermal expansion. Embrittlement may also be the result of metallurgical changes that leave the material relatively ductile and tough at elevated temperature but brittle at or slightly above room temperature...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001816
EISBN: 978-1-62708-180-1
... area, U 0 (in Btu/h · ft 2 · °F) is the overall heat-transfer coefficient, and ΔT (in degrees Fahrenheit) is the temperature difference that drives the heat flow. The reciprocal of U 0 is R 0 , the combined resistance to the heat flow. Figure 3 shows a schematic representation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001575
EISBN: 978-1-62708-217-4
... was 200°C (that was too close to operating temperature of pump, 190°C); - thermal coefficient of linear dilation for bushing material is 11.0 × 10 −6 /°C; - thermal coefficient of linear dilation for spacer material is 25.0 × 10 −6 /°C. Review of engine operating condition showed that the nr. 5...
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
...), surrounded gas (concentration), lubricant (type and lubrication regime), environmental temperature ( T ) Material Mechanical (e.g., hardness, H ; fracture toughness, K Ic ), physical (e.g., density, thermal conductivity and diffusivity), chemical properties (e.g., surface energy, work of adhesion...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001771
EISBN: 978-1-62708-241-9
..., coke readily accumulates on the surface of the tubes, fueling carbon diffusion into the metal and a corresponding degradation in microstructure and loss of ductility at high temperatures. radiant tube stress rupture thermal shock heat resistant steel carbide precipitates SEM-EDS analysis...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001110
EISBN: 978-1-62708-214-3
..., austenitic stainless steels have poor resistance to thermal fatigue. It was recommended that the steam and air be thoroughly mixed before entering the tube so that the mixture has a uniform and somewhat lower temperature. This will decrease the temperature fluctuations of the inner surface and eliminate...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001163
EISBN: 978-1-62708-234-1
.... The cooling following annealing has to be carefully controlled because of the high coefficient of expansion of austenitic steels to prevent large temperature differences in the structure leading to the formation of new tensile stresses 3 . Where annealing is not possible the residual tensile stresses...
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
... properly, and hence flash temperatures at sliding contacts remain high. Their poor thermal stability also makes them more vulnerable due to loss of mechanical strength with an increase in the surface temperature. The thermal expansion coefficients of polymers are ten times greater than those of metals...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001780
EISBN: 978-1-62708-241-9
... fracture morphologies observed in such cases and metallographic appearances of MnS-containing materials are illustrated. structural components fracture inclusions resulfurized steel stringers microstructural analysis fracture resistance AISI 11xx (resulfurized carbon steel...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001809
EISBN: 978-1-62708-180-1
...). These babbitts generally cause the least damage to steel shafts when operated with inadequate lubrication or with contaminants. Tin-base babbitt is more corrosion resistant than lead-base babbitt and is easier to bond to a steel backing. Babbitts are inherently weak and strongly affected by high temperatures...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003558
EISBN: 978-1-62708-180-1
... Environment Hostile or nonhostile High temperature or low temperature With or without abrasive particles pH level Materials Type-to-type or dissimilar Table 2 Subcategories of abrasive wear Attribute Variations Number of bodies One-body (abrasive surface) or two-body...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001687
EISBN: 978-1-62708-220-4
... industries make extensive use of centrifugally cast tubular HK austenitic alloys in conditions where a material of high resistance at elevated temperatures and corrosive environments is required. In the as-cast condition, its microstructure consists of columnar grains of austenite elongated in the radial...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001531
EISBN: 978-1-62708-231-0
... on the fracture resistance evaluated by the ratio of K ID /σ YD is more obvious than that evaluated only by K ID . Fig. 7 The ratio of K ID /σ YD of wheel steels at different temperatures It is clear that the wheel steels with lower carbon content have excellent combination of strength...
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
...-carbide, silicon-nitride, or boron-nitride. Refractories and structural ceramics are generally thought to be inert and corrosion resistant (as compared to metallic alloys), and they are, relatively so, at room temperature, under dry atmosphere, and over long time intervals. With increasing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003564
EISBN: 978-1-62708-180-1
... as materials for rolling-contact bearing components show some practical advantages over traditional bearing steels. The properties of ceramics, specifically low density and high stiffness, are of most interest to gas turbine ( Ref 1 ) and machine tool manufacturers ( Ref 2 ). High hardness, low coefficient...