1-20 of 464 Search Results for

porous residue

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003620
EISBN: 978-1-62708-182-5
...Abstract Abstract Dealloying is a corrosion process in which one or more elements are selectively dissolved, leaving behind a porous residue of the remaining elements. This article describes the dealloying in various systems, namely, dezincification, graphitic corrosion, dealuminification...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006076
EISBN: 978-1-62708-175-7
..., the powder is most commonly compacted to a density of 6.5 to 6.8 g/cm 3 (0.235 to 0.245 lb/in. 3 ). This range of density promotes the formation of an optimally porous spongy residue, which also minimizes adhesion. Fig. 3 Guidance chart to determine infiltrating slug weight required to achieve...
Book Chapter

By Jude Mary Runge
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006523
EISBN: 978-1-62708-207-5
... AA7075 Al/3, Mg/2, Zn/2, Cu/2 0.44 Source: Ref 33 Major electrolyte formulations used to produce porous oxides on aluminum substrates Table 3 Major electrolyte formulations used to produce porous oxides on aluminum substrates Main acid used in electrolyte Molecular formulas...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005741
EISBN: 978-1-62708-171-9
... spray and generates compressive residual stress, thus compensating for part of the notch effect. Another is prespraying a bond coat, a thin and dense layer of chemically pure titanium (CP-Ti) on a grit-blasted substrate, then spraying porous CP-Ti coating on the top. The thin, dense layer of CP-Ti...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004172
EISBN: 978-1-62708-184-9
... that no plating residues are trapped during the water rinsing step. Tarnishing Caused by Base Metal Migration Plating layers, especially those with low thicknesses, are generally porous. This means the protective efficiency is limited when subjecting the devices to a prolonged temperature treatment (e.g...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006093
EISBN: 978-1-62708-175-7
... machining mechanical properties metallic foams open- pore metal foams solidified metal foams syntactic metal foams FOAMS AND OTHER HIGHLY POROUS MATERIALS with cellular structure find widespread use in everyday life for cushioning, insulating, damping, constructing, and filtering purposes...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006495
EISBN: 978-1-62708-207-5
..., residual porosity in sintered parts) and in some cases purposefully adjusted for special applications (filters, bearings). Nevertheless, the production and application of highly porous metal parts—the subject of this article—is relatively new, and such parts are still not in widespread use. For the present...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003610
EISBN: 978-1-62708-182-5
... particles of a MoFe phase are on the grain surfaces. Courtesy of H.U. Borgstedt, Karlsruhe Nuclear Center Fig. 4 Corrosion of Inconel alloy 706 exposed to liquid sodium for 8000 h at 700 °C (1290 °F); hot leg of circulating system. A porous surface layer has formed with a composition of ∼95% Fe, 2...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002374
EISBN: 978-1-62708-193-1
... to approximately 85 to 90% of theoretical density. Subsequently, the pressed powder is heated to a temperature where atomic diffusion gives rise to interparticle bonding, but with little densification. Accordingly, the final product is porous. Such a technique is in widespread use for forming moderately complex...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006045
EISBN: 978-1-62708-175-7
... describes the sintering of blended elemental powders, high-strength titanium alloys, and porous material as well as the sintering of titanium powders by microwave heating. cold isostatic pressing die pressing direct powder rolling high-strength titanium alloys microwave heating powder...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006563
EISBN: 978-1-62708-290-7
..., including nonuniform ceramic powder layer deposition, laser and powder particle interactions, melting and consolidation mechanisms, optimization of process parameters, and presence of residual stresses in ceramics after processing. The applications of PBF ceramics are also discussed. References...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003988
EISBN: 978-1-62708-185-6
... to as “sinter forging.” Powder forging is a natural extension of the conventional press and sinter (P/M) process, which has been recognized as an effective technology for producing a great variety of parts to net or near-net shape. Figure 1 illustrates the powder forging process. In essence, a porous...
Book Chapter

By Erhard Klar
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003185
EISBN: 978-1-62708-199-3
... like tungsten and molybdenum were formed by P/M processing into articles for the electrical industry. Powder metallurgy processing was also used for the manufacture of composite electrical contacts. Cemented carbides and porous bronze bearings followed in the 1920s, friction materials in the 1930s...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004160
EISBN: 978-1-62708-184-9
... rings, can be found in ASTM A 289 (Class B). Retaining-Ring Corrosion Retaining rings support the generator rotor end turn coils during rotation and are under residual stresses and severe operating stresses. In the presence of moisture or other corrodents, and this high operating stress...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005715
EISBN: 978-1-62708-171-9
... to 315 to 345 °C (600 to 650 °F) for a few hours, if the substrate materials allow for such temperatures, can be very effective in vaporizing and removing deeply penetrated oils. In the case of porous substrates that contain some residual oils trapped within open pores, inadequate cleaning will result...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003065
EISBN: 978-1-62708-200-6
... contributes a residual color, which is undesirable for many applications. However, this coloration can be masked by the use of certain expensive additives, such as selenium and cobalt. Thus, a glassmaker may opt for a less expensive high-iron sand, but must compensate for this with higher decolorizing costs...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005986
EISBN: 978-1-62708-168-9
... test, transmission electron micrograph Fig. 21 Microhardness plot and structure of (a) a normal compound layer and (b) a porous, thick compound layer Fig. 23 (a) Normal compound layer. Original magnification: 500×. (b) Compound layer. Original magnification: 1500×. Etched in picral...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003421
EISBN: 978-1-62708-195-5
...-matrix composite (some residual porosity can be seen in this micrograph), while Fig. 2(b) shows the pressure and temperature schedule used during hot pressing of this composite. Fig. 1 Schematic of the slurry infiltration process followed by hot pressing Fig. 2 Unidirectional alumina...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.9781627082907
EISBN: 978-1-62708-290-7
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005654
EISBN: 978-1-62708-198-6
... and Ottersberg ( Ref 18 ) also provide further detail on these materials and give a description of the history of their use in surgery. In some applications, to achieve secure biomechanical fixation, porous-coated layers that spur tissue ingrowth are sometimes used, as described below. Though many different...