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iron-graphite powder

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Published: 01 January 1990
Fig. 3 Atomized iron powder with 0.3% graphite added to yield 0.1 to 0.2% combined carbon (6.7 g/cm 3 ). Pressed at 410 to 480 MPa (30 to 35 tsi) and sintered 30 min at 1120 °C (2050 °F) in dissociated ammonia. White regions are ferrite. Arrows E surround a colony of eutectoid (pearlite More
Image
Published: 01 December 2004
Fig. 34 Effect of sintering time on iron powder and graphite mix (pressed to 6.1 g/cm 3 ) with a sintering temperature of 1120 °C (2050 °F). (a) Sintered for 5 min, which resulted in all-pearlite structure (combined content at 0.70%) and some bonding of particles. (b) Sintered for 120 min More
Image
Published: 30 September 2015
Fig. 10 Transverse rupture strength of iron, copper, and graphite powder compacts. Sintered to a density of 6.8 g/cm 3 in endothermic gas. Lines represent compositions having the same transverse rupture strength, given in MPa with ksi equivalent values in parentheses; combined carbon More
Image
Published: 01 December 1998
Fig. 8 Atomized iron powder with 0.3% graphite added to yield 0.1 to 0.2% combined carbon (6.7 g/cm 3 ). Pressed at 410 to 480 MPa (30 to 35 tsi) and sintered 30 min at 1120 °C (2050 °F) in dissociated ammonia. White regions are ferrite. Arrows E surround a colony of eutectoid (pearlite More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006111
EISBN: 978-1-62708-175-7
... of iron and iron-graphite powder, iron-copper and iron-copper graphite, and alloy steels. The effects of various sinter conditions on the amount of combined carbon formed in the steel are also discussed. The article concludes with information on high-temperature sintering and sinter hardening. alloy...
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Published: 15 December 2019
Fig. 12 Scanning electron microscope images of common metal powders and additives used for manufacturing powdered metal components. (a) Ethylene bis stearamide wax lubricant. (b) Molybdenum powder. (c) Nickel powder. (d) Graphite powder. (e) Copper powder. (f) Atomized iron powder More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006018
EISBN: 978-1-62708-175-7
... market for metal powder is the production of powder metallurgy (PM) parts, which are dominated primarily by iron and copper powders. Iron powders constitute the largest share, where over 80% of iron powders (on a tonnage basis) are used for PM parts. Copper and copper-base powders follow iron in volume...
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Published: 30 September 2015
Fig. 8 Effect of oxygen content on compressibility of water atomized iron powder (<0.2 wt% Mn, 0.01 wt% Si) blended with 0.75 wt% Acrawax C and 0.4 wt% graphite. Data at 0.1 wt% O includes results from iron powder with 0.6 wt% Mn. Source: Ref 8 More
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003113
EISBN: 978-1-62708-199-3
... the mechanical property data for copper and graphite powders mixed with an iron powder base to produce materials that generally contain 2″ Cu, including tensile, impact, and fatigue properties. Heat treatment procedures used in developing the properties of the prealloyed powder forged materials are also covered...
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
... out separately prior to infiltration. Conventionally (Partially) Infiltrated Steels Conventional (partial) infiltration of PM steel uses a matrix made by compaction of an iron powder-graphite mix, in a manner similar to that used in conventional PM steel processing. During the combined...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006100
EISBN: 978-1-62708-175-7
... performance, wear resistance to friction under high temperature, and cost benefits, metal powders such as iron and copper powders have been widely used in manufacturing resin-bonded and sintered metallic friction materials ( Fig. 1 ). Compared to resin-bonded friction materials, sintered metallic friction...
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Published: 01 December 1998
Fig. 16 Effect of infiltration on transverse rupture strength of iron-carbon alloys sintered to a density of 6.4 g/cm 3 . Combined carbon in the alloys was about 80% of the amount of graphite added to the iron powder. The amount of copper infiltrant was adjusted to fill various fractions More
Image
Published: 01 January 1990
Fig. 11 Effect of infiltration on transverse rupture strength of iron-carbon alloys sintered to a density of 6.4 Mg/m 3 . Combined carbon in the alloys was about 80% of the amount of graphite added to the iron powder. The amount of copper infiltrant was adjusted to fill various fractions More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006138
EISBN: 978-1-62708-175-7
... Abstract Selection of the process steps used, powder chosen, and lubricant choice have marked effects on the quality of a sintered component. This article describes the alloy composition, mechanical and structural properties, processing routes, and advantages of the common members of the copper...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006316
EISBN: 978-1-62708-179-5
... Shape Characteristics for Graphite Nuclei , J Mater. Eng. Perform. , Vol 21 ( No. 8 ), 2012 , p 1793 – 1799 10.1007/s11665-011-0081-3 29. Riposan I. , Chisamera M. , and Stan S. , Structure Characteristics of Iron Powder Treated Slightly Hypereutectic Gray Irons , Int. J...
Image
Published: 01 December 1998
Fig. 15 Effect of metal powder density on the hardenability of P/M steels. The four test specimens, made from an atomized iron metal powder containing 0.90% graphite, had densities ranging from 6.0 g/cm 3 (0.217 lb/in. 3 ) (24% porosity) to 7.1 g/cm 3 (0.256 lb/in. 3 ) (9% porosity More
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
... Abstract This article briefly reviews the production methods and characteristics of plain carbon and low-alloy water-atomized iron and steel powders, high-porosity iron powder, carbonyl iron powder, and electrolytic iron powder. It emphasizes on atomized powders, because they are the most...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006302
EISBN: 978-1-62708-179-5
... and flux. This action cleans the surface by abrasion and allows the solder to wet the surface. As with brazing, graphite inhibits wetting of the iron by the solder. This problem is more likely with gray iron. Searing the surface with an oxidizing flame, grit blasting, chemical cleaning, or removing...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006032
EISBN: 978-1-62708-175-7
... with 0.5% graphite + 0.75% zinc stearate and pressed to 6.8 g/cm 3 . Source: Ref 6 . (b) Green strength of steel compacted at 490 MPa. Source: Ref 7 Fig. 8 Effect of oxygen content on compressibility of water atomized iron powder (<0.2 wt% Mn, 0.01 wt% Si) blended with 0.75 wt% Acrawax C...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006112
EISBN: 978-1-62708-175-7
... forging (See Table 12 for the chemical composition of the various materials) Designation Composition PF-10 xx Carbon steel (produced from atomized iron powder and graphite powder) PF-10C xx Copper-carbon steel (produced from atomized iron powder, copper, and graphite powders) PF-11...