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argon oxygen decarburization

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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.c9001133
EISBN: 978-1-62708-214-3
... isostatic pressing vendor uses only electronics-grade argon, with a maximum of 5 ppm oxygen and 10 ppm water vapor. The same vendor requires that all parts be cleaned by degreasing and sandblasting to “white metal.” References References 1. Levine D.J. , Metallurgical Relationships in Porous...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.9781627081801
EISBN: 978-1-62708-180-1
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0006548
EISBN: 978-1-62708-180-1
... and Steel Institute AMS Aerospace Material Specification (of SAE) ANSI American National Standards Institute AOD argon-oxygen decarburization APB acid-producing bacteria API American Petroleum Institute AREMA American Railway Engineering and Maintenance-of-Way Association ASB adiabatic shear band ASIP...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001609
EISBN: 978-1-62708-229-7
... in the solution-annealed condition. 14 Modified alloy 439 compositions with low C contents are available that have improved formability and corrosion resistance. 2 The use of argon oxygen decarburization steel-refining practices makes low-C-content alloy 439 readily available. Welding is generally performed...
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
... in steam temperature from inlet to outlet of a high-temperature superheater should be uniform across the superheater, differences in inlet temperature will lead to differences in tube metal temperature. At times, uneven burner adjustments result in localized overheating. Uneven flue-gas or oxygen...
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
...-temperature increase from inlet to outlet of a high-temperature superheater should be uniform across the superheater, differences in inlet temperature will lead to differences in tube metal temperature. The fifth factor is uneven burner adjustments. Uneven flue-gas or oxygen distribution due...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
... currents can be a source of increased galvanic degradation. Altering the Electrolyte The use of corrosion inhibitors is effective in some cases. Elimination of cathodic depolarizers (deaeration of water by thermomechanical means plus oxygen scavengers such as sodium sulfite or hydrazine) is very...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003529
EISBN: 978-1-62708-180-1
... and thus more economical test methods, such as optical emission spectroscopy (OES) or glow discharge spectroscopy. As long as the chips or bits that are remelted are truly representative of the base metal (i.e., plating or other surface coating has been removed, no carburized or decarburized material...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
... of corrosion inhibitors is effective in some cases. Elimination of cathodic depolarizers (deaeration of water by thermomechanical means plus oxygen scavengers such as sodium sulfite or hydrazine) is very effective in some aqueous systems. Metallic Coatings Two types of metallic coatings are used...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
... produced equals the valence of the ion. There are several different cathodic reactions that are frequently encountered in metallic corrosion. The most common cathodic reactions are: (Eq 9) Hydrogen evolution:  2 H + + 2 e − → H 2 (Eq 10) Oxygen reduction (acid solutions...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006831
EISBN: 978-1-62708-329-4
... scab D 233 (a) Flat, metallic projections on the casting where mold or core washes or dressings are used Blacking scab, wash scab D 240 Oxides adhering after heat treatment (annealing, tempering, malleablizing) by decarburization D 241 Adherence of oxide after annealing Oxide...
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
... the transport of electrons or ions. In certain situations, scales form on some metals according to a cubic-rate law. Cubic kinetics reported for the oxidation of zirconium and hafnium are explained as a combination of diffusion-limited scale formation and oxygen dissolution into the metal ( Ref 3 ). In other...
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
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006808
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.a0003509
EISBN: 978-1-62708-180-1
... should reveal whether a stress concentrator might have contributed to failure. The metallographic specimens should disclose the existence of any improper microstructures, such as decarburized layers, carburized skin, alloy segregation, high-strength martensite in the HAZ, and inadequate weld penetration...
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
... tube produced by erosion-corrosion. The tube surface is clean, the attack having occurred due to brine flowing through it at 70 °C (158 °F) with turbulent flow and an excessive level of dissolved oxygen. Oblique lighting of fracture surfaces for macroscopic examination can be used to advantage...
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
... and an excessive level of dissolved oxygen. Oblique lighting of fracture surfaces for macroscopic examination can be used to advantage to display surface topography. This often involves arranging lights until the desired effect is shown in an exaggerated manner. The lighting from photoflood or similar lamps...