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air-carbon arc cutting

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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
...-known example is the brittle failure of several World War II ships, which split in half while still at dockside ( Fig. 1 , Ref 2 ). The fractures originated at weld discontinuities and propagated through carbon-steel plate, which had coarse pearlite formed by furnace cooling. The existence of a coarse...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001561
EISBN: 978-1-62708-229-7
... and eleventh specimens were tested in air at a strain rate of approximately 8.7 × 10 −6 sec −1 , while the twelfth specimen was tensile-tested at a strain rate of 1″ min −1 . After the completion of the CERT testing (to fracture) all specimens were cut in order to view the fracture face by SEM...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001251
EISBN: 978-1-62708-235-8
...% ferrosilicon powder and coke the 2-ton melt was deoxidized in a ladle with 3 kg aluminum, and was cast in wet sand molds. The pieces were stripped from the mold while red hot and were cooled in air and normalized at 900° C for 3 hours. The sender reported that tendency toward abnormal fractures rose...
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 carbon content of the base metal. This high hardness is consistent with the carbon content and indicates a high susceptibility to cracking upon cooling or deformation. Fig. 5 Section through arc-gouged drain groove showing thin layer of dendritic structure containing cracks. Etched with nital. 55...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003566
EISBN: 978-1-62708-180-1
... (ASTM A29, A322, A331, A576, A681) Struck face: 45 max Cutting edge: 53–60 Drop-weight test Note: All railroad striking/struck tools are currently manufactured from the grade B steel. Nonpercussion tools, such as claw bars, rail tongs, rail forks, etc., are manufactured using plain carbon steel...
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
... fiber cloth (a) (a) 150 ≈50 1–20 (a) Silicon dioxide suspension Fig. 28 Ceramographic etching procedures Fig. 29 Silicon nitride (Si 3 N 4 ), plasma etched Fig. 30 Alumina (Al 2 O 3 ) thermally etched at 1500 °C (2700 °F) in air Fig. 25 Plot...
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
... on the outside of a copper heat-exchanger tube Fig. 29 Silicon nitride (Si 3 N 4 ), plasma etched Fig. 30 Alumina (Al 2 O 3 ) thermally etched at 1500 °C (2700 °F) in air Fig. 1 Intersection of two cracks. Crack “B” has been arrested at crack “A,” which occurred first. Fig...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001339
EISBN: 978-1-62708-215-0
... characteristics of mercury degradation is the reactivity of aluminum when the mercury-contaminated surface is first exposed to moist, ambient air. The aluminum turns a gray color, and a voluminous white gamma alumina is observed growing from the freshly exposed aluminum surface. Testing Procedure and Results...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001702
EISBN: 978-1-62708-219-8
... and a thin section from Patch2 had cross-cutting veins of calcium carbonate material that indicated that some carbonation had occurred. Both of these areas also contained fragments of shell material that were in the process of being absorbed into the carbonate veins. The carbonate veins were mixed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0048819
EISBN: 978-1-62708-233-4
... by air carbon-arc gouging. No additional cracks were found in the welds for the tray support. Tensile and impact tests performed on specimens from the sample indicated that the physical properties, after stress relief, were adequate for the service conditions. Because of the proximity...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001813
EISBN: 978-1-62708-180-1
... at a very shallow seam. The arrow indicates the base of the seam. 115× Fig. 12 Split wire in a 3.8-mm (0.148-in.) diam carbon steel spring (top). The spring at bottom appears to have a seam along its entire length, as indicated by the arrow. Fig. 13 Phosphor bronze (C51000) spring...
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
... in the dished end that had been kept in storage. Solution annealing was recommended to relieve residual stress, thereby reducing the probability of failure. It was also recommended that the carbon content of the steel be lowered, i.e., that a 316L grade be used. Sensitization Weld decay 316 UNS S31600...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
.... Specimen etched with nital Fig. 3 Light micrographs of specimens of 1215 carbon steel that were salt bath nitrided and mounted in different resins. (a) Thermosetting epoxy resin. (b) Phenolic thermosetting resin. (c) Methyl methacrylate thermoplastic resin. (d) Electroless nickel plated...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001814
EISBN: 978-1-62708-180-1
... strength differences. Such data are simple to produce and are extremely useful. The lower carbon, high-strength hot-work tool steels can be tested in tension, and such data are available for both room temperature and elevated temperatures. Tension, compression, and hardness testing arc discussed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001136
EISBN: 978-1-62708-229-7
...Abstract Abstract A fracture mechanics based failure analysis and life prediction of a large centrifugal fan made from low-carbon, medium-strength steel was undertaken following shortcomings in attempts to explain its fatigue life from start stop cycles alone. Measurements of the fracture...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001811
EISBN: 978-1-62708-180-1
... is a limiting factor, plain carbon steels may not be suitable. A high-strength low-alloy steel can be used instead, the grade and fabrication depending on the requirements of the specific application. Flame-cut parts and welded components, insofar as possible, should be stress relieved at 600 to 650 °C...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003570
EISBN: 978-1-62708-180-1
... in hydroturbines and pumps is usually repaired by air-arc gouging to sound metal, cleaning the gouged area with a wire wheel or wire brush, preheating the areas to be repaired, filling the cavities with weld metal, and grinding to final contour. This seems simple enough, but often, in practice...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003520
EISBN: 978-1-62708-180-1
... 1000 16 4 10 8 10 11 3 1500 33 24 15 15 45 (27) 22 4 1500 66 (8) 15 3 9 8 3 (a) Numbers in parentheses are the number of stainless steel wires that have failed in these two selections since they were rewired late in September 1973. All other numbers refer to carbon...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001082
EISBN: 978-1-62708-214-3
... concentration of carbide at the grain boundaries for a given amount of alloy. To avoid the presence of undesirable chromium-carbide grain-boundary networks, three methods are commonly used: Make the carbon content of the alloy low Add a significant amount of titanium or columbium to tie up the carbon...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
... Light micrograph of a ferrite-pearlite microstructure from a carbon steel reinforcing rod revealed using replicating tape. Specimen etched with picral Fig. 9 Light micrographs of the surface (plated with nickel) of quenched and tempered A2 tool steel cut with an abrasive wheel without using...