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thermal mapping

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Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006464
EISBN: 978-1-62708-190-0
... Abstract For most nondestructive evaluation (NDE) applications, the term thermography actually refers to surface-excited thermography (SET) that involves thermal mapping of surface temperature as heat flows from, to, or through a test object in response to excitation applied to the sample...
Image
Published: 01 August 2013
Fig. 23 Three-dimensional map with coating thermal and elastic properties, in terms of thermal conductivity/elastic modulus/nonlinearity degree ( k - E -ND) relationships. Source: Ref 24 More
Image
Published: 01 January 1986
Fig. 13 Digital composition map of a zinc-containing copper specimen. (a) Digital compositional map of a portion of the grain boundary shown in Fig. 11 . Note the continuous gray scale presentation. The gray scale corresponds to a concentration scale of 0 to 10 wt% Zn. (b) Same data set More
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003239
EISBN: 978-1-62708-199-3
... distribution of heat during service. There are several methods of thermal inspection and many types of temperature-measuring devices and substances. This article, however, is limited mainly to the discussion of: Thermography, which is the mapping of isotherms, or contours of equal temperature, over...
Image
Published: 01 January 2002
Fig. 2 Wear-mechanism map for unlubricated sliding of a steel couple. The normalized pressure is the contact pressure divided by hardness. The normalized velocity is the velocity multiplied by the ratio of the radius of the contact to the thermal diffusivity. The contour lines are lines More
Image
Published: 15 June 2020
Fig. 19 Solidification parameters for IN-625 alloy produced by using laser-based directed-energy deposition showing (a) thermal gradient ( G ) versus solidification rate ( R ) for depositions representing the four energy densities in Fig. 17 . Source: Ref 18 . (b) G and R values from More
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005513
EISBN: 978-1-62708-197-9
... and G values are obtained by postprocessing the thermal solution, which can be an analytical solution or a computational mechanics solution. The two parameters are related to microstructure by using processing maps. For example, see Ref 8 for a Ti-6Al-4V map. Because R and G are a function...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006977
EISBN: 978-1-62708-439-0
... of steels ( Ref 5 ). In these process maps, normalized process parameters (i.e., thermal signatures) are related to resultant phase transformations, keyholing, and other phenomena that occur during the welding of steels. Such normalized processing maps have been adapted for laser powder-bed fusion, EBM...
Book Chapter

By S.C. Lim
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006396
EISBN: 978-1-62708-192-4
... from different Al/SiC p composites with nearly the same volume fraction of SiC particles (approximately 20%). This map shows that thermal effects play an increasingly important role in the wear behavior of this group of composites when the sliding speed exceeds approximately 3 m/s (10 ft/s). Fig...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009013
EISBN: 978-1-62708-185-6
... during a thermomechanical process. The article provides information on the thermophysical properties, which include specific heat, coefficient of thermal expansion, thermal conductivity/diffusivity, and density. It concludes with examples that illustrate how the various considerations in testing...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001758
EISBN: 978-1-62708-178-8
... e − 2 π i ( h x + k y + l z ) Figure 9 shows a typical electron density map with contours at various levels of density to outline the atoms. The position of highest density is assumed to be the center of the atom and therefore the location of the nucleus. Thus...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006804
EISBN: 978-1-62708-329-4
... and point of origin. The temperature or blast pressure level can be mapped in both cases. The magnitude of a blast will usually be expressed in a spherical or circular map, whereas heat and fire damage zones are subject to flame impingement direction, wind direction, shadowing, insulation, and other cooling...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004151
EISBN: 978-1-62708-184-9
... and form an FeCl 3 -rich layer beneath the scale. During heatup, the FeCl 3 layer causes spalling of the protective Cr 2 O 3 -rich scale and a new outward-growing FeS-rich scale and inward-growing Cr 2 O 3 -rich scale is formed. This sequence repeats itself during each thermal cycle. Figure 7 shows...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006729
EISBN: 978-1-62708-210-5
... at 20 °C (68 °F) 0.33 Elastic modulus at 20 °C (68 °F), GPa (× 10 6 psi) 72 (10) Density at 20 °C (68 °F), g/cm 3 (lb/in. 3 ) 2.78 (0.10) Melting range, °C (°F) 485–630 (905–1165) Thermal conductivity at 20 °C (68 °F), W/m · K 130–160 Electrical resistivity at 20 °C (68 °F), nΩ · m...
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000600
EISBN: 978-1-62708-181-8
... fracture morphologies by visual examination, light microscopy, or electron microscopy (particularly SEM), and to elucidate the benefits of fractography in determining the relationship of the mode of fracture to the microstructure, evaluating the responses of materials to mechanical, chemical, and thermal...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006660
EISBN: 978-1-62708-213-6
... material with grain size between 2 and 200 μm, EBSD can map a large number of grains over a range of length scales spanning nanometers to centimeters. Not only is the average texture of the material available directly, but local information is also available, such as grain size, grain shape...
Book Chapter

By Sammy Tin
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005404
EISBN: 978-1-62708-196-2
..., diffusional creep, twinning during creep deformation, and deformation mechanism maps. It discusses the creep-strengthening mechanisms for most structural engineering components. The article provides a description of the microstructural modeling of creep in engineering alloys. creep deformation...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003989
EISBN: 978-1-62708-185-6
... die. Transportation Equipment Transport of the ingot and semiproduct between the furnace and the press is a very important factor, due to its significant effects on the thermal history of the workpiece. Chargers are used to transport material to and from the press, and manipulators are used...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006994
EISBN: 978-1-62708-439-0
... of a suitable processing map for a given material is required. Over the past decade, efforts have been focused on processing regions that create near-zero defects in the components. To determine this processing region, key parameters with the highest influence are varied and the response to variation...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002477
EISBN: 978-1-62708-194-8
... behavior. A ductility ratio of 1.0 corresponds to a ductile failure, while ductility numbers less than 1.0 correspond to varying levels of brittle behavior. Ductility ratios can be plotted as a function of strain rate at different temperatures to create fracture maps such as the one shown for polycarbonate...