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steam treating

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Image
Published: 01 January 1994
Fig. 2 Effect of steam treating on the mechanical properties of sintered carbon P/M steels as a function of density. (a) Transverse rupture strength. (b) Apparent hardness. Source: Ref 5 More
Image
Published: 30 September 2015
Fig. 51 Microstructure of a steam treated valve seat insert made from water atomized HSS powder. Courtesy of Bleistahl More
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001306
EISBN: 978-1-62708-170-2
... alloys high strength magnetic properties maraging steels nitriding plating powder metallurgy alloys specialty steels stainless steel steam treating surface treatment tool steels wear resistance SPECIALTY STEELS encompass a broad range of ferrous alloys noted for their special processing...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003112
EISBN: 978-1-62708-199-3
... that cannot be compacted, such as by tapping holes or cutting undercut grooves Infiltration: To increase strength and decrease porosity Heat treating: To increase hardness and strength Joining: By sinter bonding, staking, brazing, infiltrating, or welding Finishing: Includes deburring...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005971
EISBN: 978-1-62708-168-9
... analogues, and can be properly treated only with knowledge of the specific system. There are also differences in the measurement of some mechanical properties and the manner of proof tests. Powder metallurgy is used to produce near net shape parts inexpensively. In 2000, almost 80% of all powders...
Image
Published: 15 June 2020
Fig. 51 Heating of a hydrogen heat-treated copper particle on a heated stage, (a) observed from 20 to 900 °C (70 to 1650 °F) in secondary electron imaging mode. (b) At 350 to 600 °C (660 to 1110 °F), the rising H 2 O (steam) pressure exceeds the strength of the grain boundaries, cracking More
Image
Published: 01 January 2005
the simultaneous presence of chloride (derived from steam that was produced from poorly treated well water with high chloride content) and tensile stresses (caused by residual stresses resulting from punching the steel plate to form the screen, without subsequent stress relief). The photograph contrasts new More
Image
Published: 01 January 2005
Fig. 5 A steam-heated stainless steel pipe located along the floor of the cargo hold of a ship was found to be leaking at a connecting sleeve that had been fitted several months earlier during a maintenance repair at a foreign port. The steam pipe was used to keep the cargo, phosphoric acid More
Image
Published: 01 January 2005
Fig. 63 The strapped-on plate near the top of the 30 cm (12 in.) diameter pipe was intended to be a short-term palliative measure to contain water/steam that was escaping after a few months' service. The type 304 pipe first supplied water and then air to an adjacent process vessel via More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004146
EISBN: 978-1-62708-184-9
... to sound material beyond the damage. The ends of the sleeves may be expanded hydraulically or explosively and are in most cases sealed by rolling, welding, or brazing ( Ref 15 ). More recent steam generators have been fabricated using Alloy 690 tubes thermally treated for 5 h at 715 °C (1320 °F...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006108
EISBN: 978-1-62708-175-7
... ( Ref 4 ). An investigation involving projection welding of wrought materials to PM parts at densities between 5.8 and 7.4 g/cm 3 found that lower-density (<7.0 g/cm 3 ) components require greater projection heights ( Ref 5 ). It was also found that steam-treated parts could not be tisfactorily...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001044
EISBN: 978-1-62708-161-0
... be done hot or cold Re-pressing: To reduce porosity and increase strength and ductility; may be accompanied by resintering Infiltration: To increase strength and decrease porosity Heat treating: To increase hardness and strength Joining: By sinter bonding, staking, brazing...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002486
EISBN: 978-1-62708-194-8
... steel or copper-infiltrated tungsten) is also used to seal porosity, but most often to increase mechanical properties or create unique composite structures. Steam Treating Steam treating, also known as steam oxidizing, is a low-temperature (540 °C, or 1000 °F, 1 to 2 h) heat treatment process...
Image
Published: 01 January 1994
, or phosphor bronze. (a) Type and strength of solution governed by degree of surface contamination. (b) Rinse thoroughly; agitate. (c) May be used for all alloys in all forms; must be used for castings that have not been pickled after being sand blasted. (d) Water from steam condensate or water More
Image
Published: 01 December 1998
steam condensate or water treated by ion exchange should be used, when available, instead of well or hard tap water. (e) For AZ31A and B, 1 2 to 1 min. (f) Lined with lead or with natural or synthetic rubber. (g) An alternative pickle for wrought products and for castings More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004155
EISBN: 978-1-62708-184-9
... Corrosion in Phosphate Treated Drum Boiler Units , Int. Water Conf. Proceedings ( Pittsburgh, PA ), Engineers' Society of Western Pennsylvania, Nov 1987 51. Whitehead A. and Wolfe G.F. , Steam Purity for Industrial Turbines , Eighth ASME Industrial Power Conference Proceedings...
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
... Abstract Failures in boilers and other equipment taking place in power plants that use steam as the working fluid are discussed in this article. The discussion is mainly concerned with failures in Rankine cycle systems that use fossil fuels as the primary heat source. The general procedure...
Image
Published: 01 January 1994
cleaning may be used instead of this special mild-etching cleaner. Metal removal in 5 min, 2.5 to 5.0 μm (0.1 to 0.2 mil). (b) Use water from steam condensate or water treated by ion exchange, when available, instead of well or hard tap water. (c) Rinse thoroughly with adequate inflow of fresh More
Image
Published: 01 January 1994
); usual thickness, 13 μm (0.5 mil). (c) Use water from steam condensate or water treated by ion exchange, when available, instead of well or hard tap water. (d) Recommended; effective range, 74 to 93 °C (165 to 200 °F). (e) Recommended; effective range, 1.0 to 3.0 A/dm 2 (10 to 30 A/ft 2 More
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Published: 01 January 1994
contamination. (b) Rinse thoroughly with adequate inflow of fresh water; agitate. (c) This bath may be used for all treatable alloys in all forms. This bath must be used for castings that have not been pickled after being sand blasted. (d) Water from steam condensate or water treated by ion exchange More