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Charpy impact tests

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Published: 01 June 2019
Fig. 8 Plot of the results of the charpy impact tests performed on the Hatch #2 Vent Header Pipe. More
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Published: 01 December 1992
Fig. 4 Charpy impact test results for A517 grade F steel (plate D), showing the level of toughness that can be expected with adequate hardenability. More
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Published: 01 December 1992
Fig. 7 Charpy impact test results for A517 grade F, plate A, from the same producer as casually plate CK. More
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Published: 01 December 1992
Fig. 8 Charpy impact test results for the fractured flange plate. Note the atypical transition curves, which are flat over the entire temperature range, and the excellent agreement between laboratories. ETI, Effects Technology, Inc.; NBD, National Bureau of Standards; AGC, Aerojet General, CK1 More
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Published: 01 December 1992
Fig. 10 Precracked charpy impact test results for four slabs from 57 mm (2 1 4 in.) thick A517 grade H steel (heat A4070). Note that the inflection point occurred at approximate 4°C (40°F) for all four plates. In A517 grade F (plate D), the inflection point was below −60°C (−80°F More
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Published: 01 December 1992
Fig. 12 Charpy impact test results for A517 grade F, plate M. Compare with plate D in Fig. 4 . Both plates were produced by the same melting practice, and both were markedly superior to any of the A517 grade H samples tested. More
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Published: 01 December 1992
Fig. 13 Charpy impact test results for A517 grade F heat 78L 015. This heat was melted without a titanium addition, in violation of the steel producer's standard practice. Compare with Figs. 4 and 12 , which show results for steel from the same producer but with titanium added. More
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Published: 01 December 1992
Fig. 14 Charpy impact test results for 50 mm (2 in.) thick A 517 grade H heat A5491-3B, produced by the same melting practice as the casually heat. More
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Published: 01 December 1992
Fig. 15 Charpy impact test results for 50 mm (2 in.) thick A527 grade H heat 97L 151-04W1. This heat is from a second steel producer with a different melting practice. All of the samples (eight plates, five heats) had low toughness compared with A527 grade F ( Fig. 4 and 12 ). More
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Published: 01 December 1993
Fig. 21 Results of Charpy impact testing on as-received gear segments. See also Tables 1 and 3 . More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001146
EISBN: 978-1-62708-229-7
... Abstract A metallurgical failure analysis was performed on pieces of the cracked vent header pipe from the Edwin I. Hatch Unit 2 Nuclear power plant. The analysis consisted of optical microscopy, chemical analysis, mechanical Charpy impact testing, and fractography. It was found...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001111
EISBN: 978-1-62708-214-3
... 100 41.07 1.617 1,789,429 41.07 1.617 376,190 7.62 0.30 110 100 41.07 1.617 1,005,633 41.07 1.617 211,406 12.70 0.50 110 100 41.07 1.617 675,960 41.07 1.617 142,101 Results of Charpy V-notch impact testing Table 3 Results of Charpy V-notch impact testing...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001768
EISBN: 978-1-62708-241-9
... plate Heel (Corner) 478 581 27.04 Edge 428 562 28.61 Specified (ASTM A572 Grade 50) 340 min. 450 min. 17 min Charpy impact toughness of the cracked splice plate Table 4 Charpy impact toughness of the cracked splice plate Sample type Location Sample size (mm) Test...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001353
EISBN: 978-1-62708-215-0
... cracking, indicating brittle fracture. Although the tensile properties of the forging material were found to be satisfactory, the notch sensitivity of the material (i.e., its toughness) was extremely poor, as indicated by Charpy impact testing (3.9 J, or 2.9 ft . lbf). The coarse grain structure...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001591
EISBN: 978-1-62708-227-3
... as determined by the Charpy Impact Test. The steelmaking process can have an important effect on these factors. Steelmaking between the time of the construction of the RMS Titanic, 1909 to 1911, and current steelmaking practice are vastly different. It has been suggested that Harland and Wolff used less...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001079
EISBN: 978-1-62708-214-3
... mechanical property tests, including tensile, Charpy V-notch impact, and fracture toughness. The material was found to be a typical Cr-Mo-V steel, and it met the property requirements. No evidence of temper embrittlement was found. The analyses showed that the observed flaws were present in the original...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001055
EISBN: 978-1-62708-214-3
..., and sudden impact loading, probably due to water hammer. Use of a semi- or fully killed steel with a minimum Charpy V-notch impact value of 20 J (15 ft·lbf) at 0 deg C (32 deg F) was recommended for future water lines. Certified test results from the steel mill, procedure qualification tests of the welding...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001004
EISBN: 978-1-62708-229-7
... of the studs were covered by a high temperature oxide which was removed by immersing the fracture in a solution of inhibited hydrochloric acid for 10 minutes in an ultrasonic bath. A series of charpy vee-notch impact test specimens were machined from selected studs and full fracture appearance transition...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001720
EISBN: 978-1-62708-227-3
.... Fig. 10 Microstructure of boat deck channel, sample WB5, longitudinal, 450×. 2% Nital etch. Charpy Impact Tests Charpy impact tests were performed on seven standard specimens obtained from the mainmast tripod sample WB2. Samples were machined with the specimen axis parallel...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048850
EISBN: 978-1-62708-229-7
... to be decorated with small particles having a high sulfur content and were found to be faceted. Charpy impact specimens and compact-tension specimens were cut from a section of the steam line that contained several cracks. The Charpy impact tests showed the inside pipe wall to be tougher than the outside...