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impact toughness test

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Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... testing, macroindentation hardness, microindentation hardness, and the impact toughness test. bend testing failure analysis impact toughness test macroindentation hardness microindentation hardness static load testing uniaxial compression testing uniaxial tension testing...
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
..., SEM fractographic, metallographic, chemical, and mechanical property (tension and impact toughness) analyses were conducted. On the basis of the tests and observations, it was concluded that the failure was the combined result of poor notch toughness (impact) properties of the steel, high stresses...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001835
EISBN: 978-1-62708-241-9
... uniaxial tension test, hardness measurement, and impact toughness test under room temperature and low temperature (–40 °C) Uniaxial Tension Test Hardness Test Impact Toughness Test To analyze the metallographic structure of the broken bolts, metallographic investigation has been done. Samples...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001301
EISBN: 978-1-62708-215-0
... testing indicated that the gears had low impact strength. Failure was attributed to low toughness caused by the absence of, or improper, heat treatment. Casting defects identified during metallographic examination were determined to be the fracture initiation site, but were considered less significant...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
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
... thermal cycling high-strength low-alloy steel cracking Charpy impact tests impact toughness ASTM A572 grade 50 (columbium-vanadium steel) Introduction Materials and Methods Results and Discussion Conclusions Acknowledgments References References 1. Xu B. , Li H.Y...
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
... Examination of General Physical Features Testing Procedure and Results Discussion Conclusion and Recommendations Most Probable Cause Remedial Action Microstructrual Analysis Material and Weld Tensile Properties Impact Toughness The basic cause of failure was overloading...
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
... the actual mechanical properties and to determine the metallurgical cause of the observed indications. Samples were examined in a scanning electron microscope and subjected to chemical analysis and several mechanical property tests, including tensile, Charpy V-notch impact, and fracture toughness...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... characteristics can act singly or combine synergistically to reduce the strength, ductility, and toughness of metallic materials. These factors must also be considered in the evaluation and prevention of overload failures. Therefore, throughout this article, the term overload failure implies fracture due...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
...-stress rupture has ductile appearance (see creep) • Load exceeded the dynamic strength of the part• Check for proper alloy and processing as well as proper toughness, grain size• Loading direction may show failure was secondary or impact induced• Low temperatures • Cyclic stress exceeded the endurance...
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
... toughness of 0.38 mm (15 mils) lateral expansion at −20°C (0°F), and all but two of the 17 slabs produced a value ofless than 20 J (15 ft. lbf) at −20°C (0°F) ( Table 3 ). In addition to Charpy impact testing, several types of fracture testing were performed on the A517 grade H steel; all showed very low...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001135
EISBN: 978-1-62708-219-8
... loads, and the times to crack initiation and failure. Using this information, the dynamic fracture toughness can be calculated per ASTM E399. All of the data from the impact tests were stored on disk, via a recording oscilloscope, and at a later date interfaced with an Apple microcomputer for all...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001114
EISBN: 978-1-62708-214-3
... Could Have Been Prevented References References 1. Rolfe and Barsom , Fracture and Fatigue Control in Structures , Prentice-Hall , 1977 . 2. Fracture Toughness Testing and Its Applications , STP 381, ASTM , 1964 . Selected References Selected References • Failures...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001780
EISBN: 978-1-62708-241-9
... 0.025 39.9 0.026 39.9 0.030 39.0 0.033 38.5 Notch toughness characterizes a material’s ability to absorb energy during high strain rate loading (i.e., impact). The Charpy V-Notch (CVN) impact test has become the standard for this property. A plot of CVN absorbed energy versus test...
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
... grain boundaries; such embrittlement is however reversible, viz., RTE. A series of assessments of the influence of RTE on the toughness of the CrMoV studs were conducted using (i) charpy impact tests, (ii) auger electron microscopy, (iii) electro-chemical polarisation kinetic reactivation, EPR...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001776
EISBN: 978-1-62708-241-9
...—fixed jaws and swing jaws. The swing jaw is moved against the fixed jaws under a high compressive force to break rocks into granules. Thus, the crusher jaws must be quite hard to crush rocks and also be tough enough to be able to absorb the impact energy generated by the swing jaws without failure. Jaws...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001663
EISBN: 978-1-62708-236-5
... can be seen in Figure 5 in the numerous cracks that undoubtedly developed in the isolated carbides during the shock to the alloy from the impact of the projectile. The toughness of the ORNL-1 adapter nut tested with a live round of ammunition was well demonstrated, as shown in Figure 7...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001053
EISBN: 978-1-62708-214-3
... wall that were ejected during the failure and a section of the wall adjacent to one of these pieces were sent for laboratory failure analysis. Visual Macrofractography Microstructural Analysis Material and Weld Hardness Tensile Properties Impact Toughness Fracture Toughness...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001531
EISBN: 978-1-62708-231-0
... toughness, a k , and dynamic fracture toughness, K ID , were measured using standard Charpy U-notch and precracked Charpy V-notch samples with dimensions of 10 × 10 × 55 mm, on a JBC-3000 instrumented impact tester with a total energy of 300 J and a load rate of 5 m/s, respectively. The dynamic...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001196
EISBN: 978-1-62708-224-2
... by a suitable heat treatment, consisting of quenching from 860° C in oil and subsequent tempering at 650° C. This treatment resulted in a considerably finer structure of tempered martensite as shown in Fig. 3 . The improvement of the toughness by the described heat treatment was confirmed by impact tests...