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Inert gas service

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Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001373
EISBN: 978-1-62708-215-0
...Abstract Abstract Two new chrome-plated CDA 377 brass valves intended for inert gas service failed on initial installation. After a pickling operation to clean the metal, the outer surfaces of the valves had been flashed with copper and then plated with nickel and chromium for aesthetic...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006766
EISBN: 978-1-62708-295-2
.... The discussion covers the operating principles, applications, advantages, and disadvantages of optical emission spectroscopy (OES), inductively coupled plasma optical emission spectroscopy (ICP-OES), X-ray spectroscopy, and ion chromatography (IC). In addition, information on combustion analysis and inert gas...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001815
EISBN: 978-1-62708-241-9
... a service-failed pin, similar to ASTM F 519 for detection of HE in steels. The test was conducted at 75% of the ultimate strength measured for previous samples. No fracture occurred within 168 h. Hydrogen content was measured by inert gas fusion on service-failed pins, intact service pins, and known H 2...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091318
EISBN: 978-1-62708-217-4
... cycles and leaving the tank full of potable water as the final step. To improve resistance to chloride-induced pitting further, it was recommended that welding be carefully controlled and adequately protected with inert gas to restrict heat effects to formation of a golden-brown to deep-purple...
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
... by the combined effects of a corrosive environment and cyclic stresses of sufficient magnitude. Corrosion fatigue usually lowers the minimum stress level and/or the number of cycles that will cause failure than in an inert environment. Corrosion fatigue cracks may develop at stress concentration sites (stress...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001068
EISBN: 978-1-62708-214-3
... is a diagram of a tank showing the major dimensions and the position of various nozzles ad reinforcement rings. The four identical tanks were fabricated from 5 mm (0.2 in.) thick type 304L stainless steel plate by tungsten-inert gas (TIG) welding of a shell and two dished ends. Before the second dished end...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001679
EISBN: 978-1-62708-229-7
... and their performance were thought to be independent of one another. However, because of insufficient evidence for that hypothesis, stage performance in reference to position is now being monitored. The original mercury diffusion pump stage design incorporated a tungsten inert gas (TIG) weld to interface the flange...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001280
EISBN: 978-1-62708-215-0
... tubing. In the present case, reformer tubes were made of HK-40 alloy, a 25Cr-20Ni heat-resistant austenitic stainless steel. The same stainless steel (AISI type 310-H) was used as filler metal for tungsten inert gas (TIG) welding the pieces of tubing. The tubing design life was calculated from...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003551
EISBN: 978-1-62708-180-1
... of boric oxide, a useful impurity that helps pressing but is detrimental for its oxidation behavior at high temperatures. The BN ceramics are reported to be attacked by strong acids but are relatively inert towards alkalis. The nonwetting behavior of BN, similar in some ways to pure graphite, may account...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006838
EISBN: 978-1-62708-329-4
.... The laser beam moves over the build area through mirrors affixed to a galvanometer. A recoater lays down another layer of powder. The SLM processes occur within an inert environment, such as argon or a buffer gas, to prevent reactivity of the alloying elements in the liquid state with environmental...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001317
EISBN: 978-1-62708-215-0
... of the straight portions of both dished ends of this vessel. The dished ends were fabricated from 6.0 mm (0.24 in.) thick AISI type 316 stainless steel plate by cold spinning. Stress relieving of the dished ends was not specified. The dished ends were joined to the cylindrical shell portion by tungsten inert...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001350
EISBN: 978-1-62708-215-0
... Vessel Code that applies to nuclear components. Every stage of the fabrication was stringently controlled, as were the choice of parent metal and filler wires. The root pass of the fillet weld was made by the tungsten inert gas welding, followed by manual metal arc welding with basic coated electrodes...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001347
EISBN: 978-1-62708-215-0
... with a nitrogen purge system which flowed toward the flare. Normally, the storage facility would fill tank cars that had the same service or had been cleaned and inerted. Approximately three months prior to the failure of the railroad tank car, it had been maintenanced, repaired, and hydrotested...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006828
EISBN: 978-1-62708-329-4
...- and heat-resistant brazed filler metals. Inert gas quenching through the carbide precipitation range can also reduce the likelihood of potentially deleterious sensitization. A typical and economic cycle implemented for concurrently brazing and heat treating type 410 stainless steel using a nickel-base...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006784
EISBN: 978-1-62708-295-2
... during subsequent cooling. The use of vacuum melting and the modification of compositions can reduce susceptibility to hydride formation. Hydrogen can often be removed by annealing in vacuum. Welding generally requires the use of inert gas shielding to minimize hydrogen pickup. The hydride particles...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003552
EISBN: 978-1-62708-180-1
... in vacuum. Welding generally requires the use of inert gas shielding to minimize hydrogen pickup. The hydride particles often have the form of platelets and show preferred orientation within the parent lattice, depending primarily on the metal or alloy composition. The large volume change associated...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001041
EISBN: 978-1-62708-214-3
... fatigue strength improvement techniques have been developed, such as toe grinding ( Fig. 19 ) and tungsten-inert gas (TIG) dressing ( Fig. 20 ). These techniques remove the microscopic intrusions at the weld toe. Other techniques, such as hammer peening, shot peening, or overloading, rely...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001791
EISBN: 978-1-62708-241-9
... for High-Pressure Service . American Society for Testing Materials , West Conshohocken, PA 7. Pardal J.M. , Carvalho S.S. , Barbosa C. , Montenegro T.R. , Tavares S.S.M. : Failure analysis of AISI 310S plate in an inert gas generator used in off-shore oil platform . Eng...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001812
EISBN: 978-1-62708-241-9
... (a hydrocarbon containing fluoride, plus fine copper particles to produce the right “consistency”), was thought to be inert, and would exclude any other environment. Testing to conclusively prove that the wax would not produce SCC was not considered to be worthwhile given the evidence in support of SMIE...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
..., it can be made less corrosive by removing the ferric ions and consequently reducing the total rate of cathodic reduction. Oxygen reduction is eliminated by preventing air from contacting the aqueous solution or by removing air that has been dissolved. Iron is nearly inert in air-free water or seawater...