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binder segregation

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Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006021
EISBN: 978-1-62708-175-7
..., channel diameters, binder segregation, binder degradation, feedstock supply, temperature control, demolding, debinding, and sintering. Finally, the article provides information on powder injection molding mold-filling simulation and two-component powder injection molding, offering a method for high-volume...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006086
EISBN: 978-1-62708-175-7
...” , also discusses powder blending and mixing techniques, including the recently developed binder-treatment blending used for metal powders. Binder-treated premixes ( Fig. 3 ) lead to reduced dusting and segregation of alloy additions and enhanced powder flow and die filling. This results in improvements...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006583
EISBN: 978-1-62708-290-7
..., electron beam melting, and binder jet three-dimensional (3-D) printing, and feedstock methods, such as fused-filament fabrication and thermoplastic 3-D printing. It discusses the characteristics, processing steps, properties, advantages, limitations, and applications of these technologies. binder...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006081
EISBN: 978-1-62708-175-7
... sufficient diffusion and mass transport during the sintering process for homogeneous alloying. The third type, bonded, or diffusion-alloyed, powders are similar to admixed grades, except that powder fines for alloying are bonded to the surface of the iron particle. This step reduces segregation and thus...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006109
EISBN: 978-1-62708-175-7
... density, and compressibility of metal powders. It explains the mechanisms of powder segregation. The article provides information on green strength and springback value of rectangular test bar. It concludes with a discussion on the chemical composition of metal powders. angle of repose apparent...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003166
EISBN: 978-1-62708-199-3
.... The strengths of small-diameter filaments can approach 4.1 GPa (590 ksi). If heavily deformed tungsten is exposed to temperatures of approximately 1200 °C (2190 °F) or greater for sufficient time, recrystallization and segregation of dissolved impurities to grain boundaries occur, resulting in a return...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005258
EISBN: 978-1-62708-187-0
... for producing relatively few castings. A single mold case can be used with different thicknesses of sand linings to produce tubes of various diameters within a limited range. Green Sand Green sand is commonly used as the liner in expendable molds. Various mixtures and binders are used, for example...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005354
EISBN: 978-1-62708-187-0
...Abstract Abstract No-bake sand molds are based on the curing of inorganic or organic binders with either gaseous catalysts or liquid catalysts. This article reviews the major aspects of no-bake sand bonding in terms of coremaking, molding methods, and sand processing. It discusses the points...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001339
EISBN: 978-1-62708-173-3
..., differ from the calculated values due to alloying-element partitioning during cellular or dendritic solidification, commonly observed in steel weldments. During solidification of a weld metal, solute elements segregate to the liquid at the solid/liquid interface, and the solute concentrations can...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006125
EISBN: 978-1-62708-175-7
.... Oxygen in solution can segregate to grain boundaries and cause brittle behavior. Hydrogen also prevents loss of material due to oxide evaporation. Table 2 shows the melting and boiling points of molybdenum and tungsten trioxide; though they are high, the vapor pressure of the oxides is significant even...
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
... to sintering hot isostatic pressing A process combining temperature and high pressure gas to densify a material into a net-shape component using a pressure-tight outer envelope metal injecting molding A process in which a mixture of a metal powder and plastic binder is injection molded...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006561
EISBN: 978-1-62708-290-7
.../Superalloys_2010_455_469 10. Maleksaeede S. , Meenashisundaram G.K. , Lu S. , Salehi M. , and Jun W. , Hybrid Binder to Mitigate Feed Powder Segregation in Inkjet 3D Printing of Titanium Parts , Metals , Vol 8 , 2018 10.3390/met8050322 11. Robinson S.K. and Paul M.R...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004024
EISBN: 978-1-62708-185-6
... similar to ink-jet printing, a binder material selectively joins particles where the object is to be formed. A piston that supports the powder bed and the part-in-progress lowers so that the next powder layer can be spread and selectively joined. Fig. 2 3D printing technique. Source: Ref 4...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003052
EISBN: 978-1-62708-200-6
... of the transient additives (solvents, dispersants, binders, and the like). Selection of transient additives is dictated by the forming method and processing details (including cost). Table 4 lists some of these additives and their applications. Selected chemical additives used to optimize powder treatment...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006088
EISBN: 978-1-62708-175-7
... and premixing solids. binders low-shear agitated-type blenders metal powders particle density particle shape particle size powder blending premixing tumble-type blenders BLENDING OF POWDERS is defined as the thorough intermingling of powders of the same nominal composition. The implication...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003053
EISBN: 978-1-62708-200-6
... as close to as possible to their final shape. The article also provides useful information on drying methods, shrinkage, and defects as well as the removal of organic processing aids such as dispersants, binders, plasticizers, and lubricants. ceramic forming process drying green machining organics...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003797
EISBN: 978-1-62708-177-1
... to a class of hard, wear-resistant, refractory materials in which the hard carbides of Groups 4 to 6 (IVB to VIB) metals are bound together, or cemented, by a soft and ductile metal binder such as cobalt or nickel. Although the term “cemented carbides” is widely used in the United States, these materials...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006573
EISBN: 978-1-62708-290-7
... orientation and crack growth direction: build orientations of (g) 0 and (h) 90°. Source: Ref 35 Fig. 3 Optical photographs from binder-jetted Co-Cr-Mo powder printed with saturation levels of 70 to 100% and sintered at (a) 1325 °C (2417 °F) for 3 h, (b) 1300 °C (2372 °F) for 4 h, and (c) 1285 °C...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005571
EISBN: 978-1-62708-174-0
... of alloying element during cellular or dendritic solidification, commonly observed in steel weldments. During solidification of a weld metal, solute elements segregate to the liquid at the solid/liquid interface, and the solute concentrations can reach high levels in the interdendritic regions...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006576
EISBN: 978-1-62708-290-7
... powder bed fusion, electron powder bed fusion, blown powder directed energy deposition, and binder jet AM. The discussion includes process overview and covers the mechanism, advantages, and applications of each of these techniques. References References 1. Specification S. , “ Standard...