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impact strength

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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.c9001301
EISBN: 978-1-62708-215-0
... 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 than the low as-received...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0047109
EISBN: 978-1-62708-233-4
.... The function of the valve is to open and close a port; thus, the valve is subjected to both impact and tensile loading. Analysis (visual inspection, hardness testing, and stress analysis) supported the conclusions that the valve stems were impact loaded to stresses in excess of their yield strength...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048091
EISBN: 978-1-62708-224-2
... notch produced by flame cutting and welding. As corrective measures, fully silicon-killed 1020 steel with a maximum grain size of ASTM 5 were used to make new stop-block weldments. The weldments were normalized at 900 deg C after flame cutting and welding to improve microstructure and impact strength...
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
...–14.00 Al 0.05 P 0.04–0.06 Mg 0.003 S 0.001–0.002 Sn 0.0017 Cr 0.10–0.12 As 0.018–0.020 Mo 0.055–0.057 Co 0.04 Ni 0.017–0.021 W 0.067 Cu 0.01–0.03 Fe Balance Impact strength of untreated and treated samples of the failed crusher jaw Table 2 Impact strength...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001150
EISBN: 978-1-62708-235-8
... removed from a number of the bars with the notch aligned on a plane parallel to the fracture face. Results of the impact testing, presented in Table 1 , showed that the fractured blades had average impact strengths less than one-third those of the bent blades. Fig. 6 Photograph showing crack...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046028
EISBN: 978-1-62708-235-8
... Impact strength Surface defects 8620 UNS G86200 Brittle fracture The latch tip on the main-clutch stop arm shown in Fig. 1(a) fractured during normal operation in a business machine. In operation, the latch tip was subjected to intermittent impact loading. Three stop arms that failed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001263
EISBN: 978-1-62708-224-2
... bolt and normalized at 900° C. One specimen was examined in this condition and the other after strain ageing (10% deformation + 1 2 h/ 250° C). The results were as follows: notched bar impact strength [kpm/cm 2 ] hardness HV [kp/mm 2 ] normalized specimen 3,1 223–232 aged...
Image
Published: 01 June 2019
). 5.5×. (e) Charpy V-notch impact-strength values of specimens from weld area, both as-fractured and after retempering at 650 °C (1200 °F) for 6 h. Source: Ref 1 More
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
..., or 1705°F) would probably improve mechanical properties marginally. The steel used for the manufacture of the forging was apparently not fully killed, which further contributed to poor impact strength. The carbon steel plate material was found to have adequate tensile properties and moderate toughness...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006912
EISBN: 978-1-62708-395-9
... factors to evaluate carefully. Temperature not only affects physical properties such as impact strength, tensile strength, stiffness, and fatigue, but it also affects chemical resistance and all long-term properties. Therefore, it is highly recommended to test the candidate material at the maximum...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048795
EISBN: 978-1-62708-220-4
... fracture surface; arrow points to facet at fracture origin. (d) Enlarged view of region at arrow in (c). 5.5×. (e) Charpy V-notch impact-strength values of specimens from weld area, both as-fractured and after retempering at 650 °C (1200 °F) for 6 h. Source: Ref 1 The failure did extensive damage...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006919
EISBN: 978-1-62708-395-9
..., extension, e , is approximately equal to engineering strain, ε.) Fig. 6 Strain-rate and temperature dependence of yield strength for polybutylene terephthalate Fig. 7 Impact test of a polycarbonate box section Fig. 8 Stress-strain curves for rubber-modified polycarbonate...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006925
EISBN: 978-1-62708-395-9
... modulus Elongation, % Flexural strength Flexural modulus Notched impact strength Rockwell hardness Specific gravity MPa ksi GPa 10 6 psi MPa ksi GPa 10 6 psi J/m ft · lbf/in. Engineering thermoplastics Acetal Copolymer 60.7 8.8 2.8 0.41 60 89.6 13 2.6 0.375 69 1.3...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0090974
EISBN: 978-1-62708-235-8
... was relatively low, and the tensile strength appeared to be substantially lower than specified. The casting was very brittle, and shrinkage was apparent on the tensile specimen fracture surfaces. The impact strength was very low at the specified test temperature. The typical microstructure is shown in Fig...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001170
EISBN: 978-1-62708-225-9
... the cross section was weakened by short grooves (N) that apparently had served as tool grips for tightening the cover. The ring was made of steel with approximately 0.5% C, 1.3% Mn and 1.1% Cr and was hardened and tempered to 105 kp/mm 2 strength at 11% elongation (δ 10 ). Notch impact strength was 1.5...
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
... 0.026 39.9 0.030 39.0 0.033 38.5 Charpy impact strength data, Ref. [<xref rid="c9001780-ref11" ref-type="bibr">11</xref>] Table 9 Charpy impact strength data, Ref. [ 11 ] Wt.% sulfur Ratio of longitudinal to transverse impact strength 0.011 3.0 0.030 5.4 0.031 6.3...
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
..., which has no specified chemical composition requirements. The clamp was purchased to API type 2 material. There are no specified chemical composition requirements for type 2 material, and no Charpy impact energy requirements. Requirements regarding strength, elongation, and reduction of area...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006928
EISBN: 978-1-62708-395-9
...-term and long-term tensile testing of plastics. Information on the strength/modulus and deflection tests, impact toughness, hardness testing, and fatigue testing of plastics is also provided. The article describes tension testing of elastomers and fibers. It covers two basic methods to test...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001112
EISBN: 978-1-62708-214-3
... specification 255 37 412 60 23.0 Results of Impact testing Table 2 Results of Impact testing Temperature Charpy V-notch impact strength (a) °C °F J ft. lbf −40 −40 21.9, 25.5, 24.8 16.2, 18.8, 18.3 0 32 27.0, 28.2, 26.5 19.9, 20.8, 19.5 28 82 22.1, 32.9, 25.0...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0046388
EISBN: 978-1-62708-224-2
... hardening of the bolt and thimble hole to equal hardness values would produce the best wear characteristics. However, loading of case-hardened bolts could cause the case to spall or fracture from the base metal; also, case hardening the bolt would not improve its impact strength. The wearability...