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Sintering furnaces

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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.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.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 Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006838
EISBN: 978-1-62708-329-4
... thermal fusing occurs in a sintering furnace and printed objects are heated more or less evenly, the grain structure develops evenly throughout the part and may give the part isotropic properties. The difference in microstructure between binder jetting and laser PBF can be seen in Fig. 9 and 10...
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
.... Fig. 2 Weld defect (lack of fusion). This defect did not cause a failure even after 27 years in a reheater. Failures Involving Sudden Tube Rupture In the basic design of a boiler, the heat input from the combustion of fuel is balanced by the formation of steam in the furnace...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006825
EISBN: 978-1-62708-329-4
... is higher than in subcritical units. Because of this, the furnace tubes act more as superheaters than as water-walls. This necessitates the use of a higher grade of materials, such as the high-alloy steels, in the furnace. In turn, materials having higher creep strength and greater oxidation and corrosion...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001391
EISBN: 978-1-62708-215-0
... was a sintered thick film that was coated with a protective glass film after laser trimming and finished with an epoxy coating. Continuity through the resistive element was established by solder attachments to the assembly lead frame through edge terminations. Fig. 1 Chip detail schematic, indicating chip...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... are much higher than found in contact with NH 3 at high temperatures (980 to 1090 °C, or 1800 to 2000 °F) ( Ref 21 ). Nitriding furnaces and accessories for heat treating powder metal products are typically exposed to N 2 or N 2 -H 2 atmospheres at elevated temperatures (~1090 °C, or 2000 °F). Both...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
.... Intergranular brittle fracture is very prevalent in ceramic materials and is often present in poorly sintered powder metallurgy constructs. It is necessary for the practicing failure analyst to understand that intergranular brittle fracture is not always due to defects and improper processing. This mechanism...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
.... While pieces with a small section size that would normally be sectioned with an abrasive cutter can be cut with a precision saw, the cutting time is appreciably greater, but the depth of damage is much less. Precision saws are widely used for sectioning sintered carbides, ceramic materials, thermally...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... in poorly sintered powder-metallurgy constructs. It is necessary for the practicing failure analyst to understand that intergranular brittle fracture is not always due to defects and improper processing. This mechanism can result from well-controlled processes that provide benefit that can outweigh...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
... for sectioning sintered carbides, ceramic materials, thermally sprayed coatings, printed circuit boards, electronic components, bone, teeth, and so on. Mounting The primary purpose of mounting metallographic specimens is for convenience in handling specimens of difficult shapes or sizes during...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006923
EISBN: 978-1-62708-395-9