1-20 of 45 Search Results for

sintering

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
Image
Published: 30 August 2021
Fig. 8 Binder jetting and sintering process. (a) Image of a layer of powder in midprint in the binder jet process. (b) Depowdering after the curing step More
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001104
EISBN: 978-1-62708-214-3
... Abstract A Nicrofer 3718 sinter belt used in a sinter furnace operated at 965 deg C (1770 deg F) for the curing of nickel briquettes stretched and fractured after only 6 months in service. Macrofractographic, metallographic, and chemical analyses of several broken links of the woven belt...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001133
EISBN: 978-1-62708-214-3
... Abstract A femoral knee implant was returned to the casting vendor for analysis after exhibiting poor bond strength between the cast substrate and a sintered porous coating. Both the coating and the substrate were manufactured from a cobalt-chromium-molybdenum alloy. Metallographic analysis...
Image
Published: 01 December 1993
Fig. 11 Micrograph of surface of titanium alloy tibial tray where a sintered bead has fractured off. Note incomplete fusing of the bead to the tray. More
Image
Published: 01 December 1993
Fig. 12 Micrograph of sinter neck of titanium bead. Note appearance of fracture lines about the circumference of the bead neck. More
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001265
EISBN: 978-1-62708-215-0
.... The sintered porous coating exhibited multiple regions where fatigue fracture of the neck region occurred, as well as indications that the sintering process did not fully incorporate the beads onto the substrate. Better process control during sintering and use of subsequent heat treatments to ensure a bimodal...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0045926
EISBN: 978-1-62708-235-8
... Abstract A batch of bimetal foil/epoxy laminates was rejected because of poor peel strength. The laminates were manufactured by sintering a nickel/phosphorus powder layer to a copper foil, cleaning, then chromate conversion coating the nickel-phosphorus surface, and laminating the nickel...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001784
EISBN: 978-1-62708-241-9
... of low carbon steel formed in a powder metallurgy process. A number of flaws were found including nonuniform wall thickness, poor geometric design with sharp corners as stress raisers, and incomplete sintering evidenced by unsintered particles. These were determined to be the primary cause of failure...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001033
EISBN: 978-1-62708-214-3
... (1600 mu in.) diam type 304 stainless steel wire screening had been torn and pieces were missing. Scanning electron microscope revealed that the fracture had occurred at wire crossover locations by a fatigue mechanism. The problem was solved by sintering the individual screens into a single unit...
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
... considerations, and quality assurance. The emphasis is on the design and metallurgical aspects for the two main types of metal AM processes: powder-bed fusion (PBF) and directed-energy deposition (DED). The article also describes the processes involved in binder jet sintering, provides information on the design...
Image
Published: 01 January 2002
Fig. 29 Examples of strength-limiting defects in ceramics. (a) Silicon inclusion in reaction-bonded silicon nitride. (b) Powder agglomerate in sintered silicon carbide. (c) Machining damage in hot pressed silicon nitride. SEM; picture widths (a) ∼150 μm. (b) ∼300 μm, (c) ∼150 μm. Source: Ref More
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
... sintering. Technical ceramics nevertheless possess a fired density as close as possible to theoretical density (with small pores and very little apparent porosity—a major difference when compared to refractories). The refractory materials to be considered can be classified as: Basic refractories...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001361
EISBN: 978-1-62708-215-0
... the race was also of 17-4PH hardened to 26 to 35 HRc. The ball was constructed of 440C steel hardened to 55 to 62 HRc. The liner was a Teflon impregnated sintered bronze matrix. Visual Examination of General Physical Features Rod and Body The fracture surface was found to contain beach marks...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047793
EISBN: 978-1-62708-217-4
.... The microstructure of the metal in the impeller exhibited scattered porosity and carbide particles and appeared to be a sintered powder metallurgy compact. Metallographic examination of a section through the damaged splines and of a section through the adjacent undamaged part of the same splines disclosed...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001109
EISBN: 978-1-62708-214-3
...: modification of the processing parameters to reduce the salt deposition and / or change of bar materials to a more resistant alloy. Castings Fluxing Fused salts Hot gas corrosion Ironmaking Pelleting Sintering furnaces HH UNS J93503 High-temperature corrosion and oxidation Background...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003565
EISBN: 978-1-62708-180-1
... Impact crater area vs. compressive residual stress for impacts normal to the lay and compressive stresses perpendicular to the grinding direction (○), and for impacts perpendicular to the lay and compressive stresses parallel to the grinding direction (●), using sintered reaction-bonded silicon nitride...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001026
EISBN: 978-1-62708-214-3
... the crack was so tightly closed that microscopic areas of contact became partially sintered during heat treatment. The smoothly figured portions of these areas were similar to the large flake areas discussed above, and the scattered spots of rougher, transgranular cracking within them were similar...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006793
EISBN: 978-1-62708-295-2
... (■) and for impacts perpendicular to the lay and compressive stresses parallel to the grinding direction (●), using sintered reaction-bonded silicon nitride counterfaces and NBD-200 silicon nitride balls. Source: Ref 46 It can also be seen that grinding results in compressive residual stresses...
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
... are less common and occur due to poor sintering mixture or a sharp indention load. Surface ring cracks are circular, extending for approximately 1 4 to 1 3 of the circumference of a circle. These circular cracks have been studied extensively. The fundamental basis for an explanation...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001807
EISBN: 978-1-62708-241-9
.... Eng. Ser 3 , 1 – 52 ( 1947 ) 5. Miyashita Y. , Yoshimura Y. , Xu J.-Q. , Horikoshi M. , Mutoh Y. , Subsurface crack propagation in rolling contact fatigue of sintered alloy . JSME Int. J. Ser. A 46 , 341 – 347 ( 2003 ) 10.1299/jsmea.46.341 6. Schlicht...