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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0047917
EISBN: 978-1-62708-227-3
... concentrations and formed cracks under repeated stressing. The cyclic stressing and corrosion in the cracks led to the failure on the inner ring. Recommendation The inner and outer rings should both be made from 17-4 PH (AISI type 630) stainless steel, which is more resistant to corrosive marine...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001171
EISBN: 978-1-62708-219-8
... Abstract The defects observed along weldings of stainless steel pipelines employed in marine environments were evidenced by metallographic and electrochemical examination. A compilation of cases on the effect of defective weldings, in addition to improper choice of stainless steel for water...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001789
EISBN: 978-1-62708-241-9
... platform unexpectedly shut down due to the failure of a union nut, which led to an investigation to quantify the material limitations of bronze alloys in corrosive marine environments. The study focused on two alloys: Al-Si bronze, as used in the failed component, and Ni-Al bronze, which has a history...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0091336
EISBN: 978-1-62708-234-1
... Abstract A type 304 austenitic stainless steel tube (0.008 max C, 18.00 to 20.00 Cr, 2.00 max Mn, 8.00 to 10.50 Ni) was found to be corroded. The tube was part of a piping system, not yet placed in service, that was exposed to an outdoor marine environment containing chlorides. As part...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091674
EISBN: 978-1-62708-217-4
... the conclusion that the failure of the hinge brackets occurred by SCC. The corrosion was caused by exposure to a marine environment in the absence of paint in stressed areas due to chipping. The stress resulted from the interference fit of the bushing in the lug hole. Recommendations included inspecting all...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0046969
EISBN: 978-1-62708-227-3
... Abstract Aluminide-coated and uncoated IN-713 turbine blades were returned for evaluation after service in a marine environment because of severe corrosion. Based on service time, failure of these blades by corrosive deterioration was considered to be premature. Analysis (visual inspection...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091678
EISBN: 978-1-62708-217-4
...) supported the conclusion that the cause of failure was SCC resulting from exposure to a marine environment. The fracture occurred in normal operation at a point where damage from pitting and intergranular corrosion acted as a stress raiser, not because of overload. The pitting and intergranular attack...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091761
EISBN: 978-1-62708-229-7
... tip fractured due to thermomechanical fatigue in its degraded state. Recommendations included special chromium or silicon-rich coating to minimize corrosion in gas turbines operating in a marine environment with operating temperatures in the range of type 2 corrosion (650 to 750 deg C, or 1200 to 1380...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001030
EISBN: 978-1-62708-214-3
... intrusion from a marine environment and poor hole quality. Failure was intensified by dissimilar-metal contact in the presence of weak acidic electrolyte (dissociated MoS2). Control of machining parameters to prevent formation of brittle martensite, use of galvanically compatible fasteners, and use...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0091350
EISBN: 978-1-62708-227-3
... couples formed between precipitates and the alloy matrix, leading to severe intergranular attack. No recommendations were made. Marine environments Sensitization Ship hulls 5083 UNS A95083 Intergranular corrosion The 5 xxx series of aluminum alloys are often selected for weldability...
Image
Published: 01 June 2019
Fig. 1 Uncoated and aluminide-coated IN-713 turbine blades that failed by hot corrosion in a marine environment. (a) An uncoated blade showing splitting along the leading edge and swelling on the surface of the airfoil. 2.7x. (b) Section taken through the leading edge of an uncoated blade More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001673
EISBN: 978-1-62708-227-3
... and copper reprecipitation. Heat exchanger tubes Marine environments Sulfides 90Cu-10Ni Intergranular corrosion The failure of a heat exchanger tube in a marine engine resulted in flooding of the vessel and subsequently sinking it. The coolant utilized in this engine was nonrecirculated...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001696
EISBN: 978-1-62708-234-1
... coatings added after the investigation have proven effective in preventing subsequent such failures. Hydrochloric acid Launch pad tubing Marine environments 304 UNS S30400 Stress-corrosion cracking Background Information A section of 0.75 in (diameter) × 0.065 in (wall-thickness) 304...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0091669
EISBN: 978-1-62708-227-3
... of only aluminum alloys 6061-T6 and T651 and 2024-T6, T62, and T851. Fittings Fuel lines Marine environments Missiles 2017 UNS A92017 2014 UNS A92014 Stress-corrosion cracking During a routine inspection, cracks were discovered in several aluminum alloy coupling nuts ( Fig. 1a...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001684
EISBN: 978-1-62708-225-9
... of penetration was consistent with dezincification rates reported in the literature for such brasses in salt water if the valve had been in service about 55 years. Dezincification Marine environments Tug boats Valve seats Alpha brass Alpha-beta brass Dealloying/selective leaching Introduction...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001103
EISBN: 978-1-62708-214-3
... in the beta phase ( Ref 2 ). The minimum concentration of ammonia necessary to cause stress cracking is very low. It has been suggested that an ample source of ammonia in marine atmospheres and seawater may be the decaying animal and vegetable matter found in marine environs. Thus, the evidence strongly...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001343
EISBN: 978-1-62708-215-0
... injection of cooling water to a nuclear reactor in case of a failure in the primary heat transport system A section of 250 mm (10 in.) diam type 304 stainless steel pipe failed during precommissioning. Cooling systems Marine environments Nuclear reactor components Pipe, corrosion Rusting Water...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006866
EISBN: 978-1-62708-395-9
... C. , Li X. , Hazen T. , Streit W.R. , New Insights Into the Function and Global Distribution of Polyethylene Terephthalate (PET)-Degrading Bacteria and Enzymes in Marine and Terrestrial Metagenomes , Appl Environ Microbiol , February 2018 , Vol 84 (No. 8 ) 10.1128/AEM.02773...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001123
EISBN: 978-1-62708-214-3
... be accepted only if it meets specification. Die castings Marine environments Zamak 3 Intergranular corrosion Intergranular fracture Handbook of Case Histories in Failure Analysis, Volume 1 Copyright © 1992 ASM International® K.A. Esaklul, editor All rights reserved DOI: 10.31399/asm.fach.v01...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001319
EISBN: 978-1-62708-215-0
... moisture and chlorides from the humid environment, finally leading to SCC of the components. Contaminants Marine environments Transgranular corrosion 304L UNS S30403 Stress-corrosion cracking Brittle fracture Handbook of Case Histories in Failure Analysis, Volume 2 Copyright © 1993 ASM...