1-8 of 8 Search Results for

polythionic acid corrosion

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
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001774
EISBN: 978-1-62708-241-9
... stainless steel; the flange from type 321, and the ring gasket from 347. Examination revealed that the failure occurred by transgranular stress-corrosion cracking, initiated by the presence of polythionic acid. Detailed metallurgical investigation was subsequently conducted to identify what may have caused...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001345
EISBN: 978-1-62708-215-0
... deposits revealed the presence of sulfur. Sulfur was also detected at the crack terminus. Sulfur, in the form of sulfur acids such as sulfurous acid of polythionic acid, is known to attack sensitized stainless steel intergranularly. When this intergranular attack is combined with tensile stresses, either...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001059
EISBN: 978-1-62708-214-3
..., probably in the form of oxides from the surface of the steel. No chlorides were present, but this did not rule out the occurrence of chloride SCC, because chlorides are highly soluble in water and may have been leached from the surface. The high sulfur content could suggest SCC induced by polythionic acid...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... Petroleum Institute Recommended Practice 571, “Damage Mechanisms Affecting Fixed Equipment in the Refining Industry,” identifies five types of SCC (chloride, caustic, polythionic acid, wet H 2 S-SCC, and ammonia) experienced by crude units in petroleum refineries ( Fig. 2 , Ref 6 ). In industrial...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
...Abstract Abstract This article commences with a discussion on the characteristics of stress-corrosion cracking (SCC) and describes crack initiation and propagation during SCC. It reviews the various mechanisms of SCC and addresses electrochemical and stress-sorption theories. The article...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001818
EISBN: 978-1-62708-180-1
.... The article explains the failure of pressure vessels with emphasis on stress-corrosion cracking, hydrogen embrittlement, brittle and ductile fractures, creep and stress rupture, and fatigue with examples. brittle fracture composite creep rupture ductile fracture fabrication failure analysis...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001817
EISBN: 978-1-62708-180-1
... that was denickelified (top) and unaffected base metal (bottom). Etched with equal parts nitric and acetic acid. 375× Abstract Abstract This article describes the characteristics of tubing of heat exchangers with respect to general corrosion, stress-corrosion cracking, selective leaching, and oxygen-cell attack...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003555
EISBN: 978-1-62708-180-1
... corrosion exposure to vanadium salts and sulfur trioxide promote corrosion of stabilized zirconia by acid leaching of yttria. Loss of yttria destabilizes the zirconia, and thermal cycling causes rapid failure of the coating. This is potentially serious when burning low-grade fuels in a marine environment...