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fracture properties

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001523
EISBN: 978-1-62708-227-3
... failure; fatigue fracture; and, environmentally-assisted cracking. Testing indicated overload failure was the cause. Remedial actions were taken to improve the fracture properties of the deck socket. A modified manufacturing process was developed involving milling and cutting instead of coining to round...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001801
EISBN: 978-1-62708-241-9
... implant applications (UNS R56401), 2002 4. Boyer R. , Collings E.W. , Welsch G. (eds.), Materials Properties Handbook: Titanium Alloys ( ASM International , Materials Park , 1994 ), pp. 483 – 636 5. Snyder H.J. et al. , Fatigue fracture of 316L SS screws...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001792
EISBN: 978-1-62708-241-9
... composition of the shafts by using spectroscopic chemical analysis, and (iv) measurement of the tensile properties and impact toughness of materials by tensile and Charpy tests at room temperature. Care was taken to avoid any damage to fractured surfaces. Results of Investigations Examination of Fracture...
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
... characteristics Uses and Limitations in Failure Analysis A uniaxial tension test provides a failure analyst the actual, or typical, mechanical properties and an exemplar fracture surface of the material specific to the failure location and load direction. The actual mechanical property and exemplar...
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
... propagation rates, fracture toughness, notch toughness, and transverse tensile properties, and do so in an anisotropic manner with respect to rolling direction. Significant property anisotropy has been documented in the failures investigated, providing evidence that designers failed to account for it. Typical...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0090965
EISBN: 978-1-62708-221-1
... fracture morphology remained. However, the investigation supported the conclusion that the crusher frame failed via brittle overload fracture, likely due to excessive service stresses and substandard mechanical properties. Recommendations included additional quality-control measures to provide better...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0089338
EISBN: 978-1-62708-224-2
... Abstract A steel lifting eye, manufactured from grade 1144 steel, failed during service. The eye ring fractured in two places, adjacent to the threaded shank and diametrically opposite to this region. Woody overload features, typical for resulfurized steels were revealed by SEM...
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
... As-received condition 8.8 6.5 10.8 8.0 15.7 11.6 Normalized at 900°C (1650°F) 82.3 60.7 99.0 73.0 103.9 76.6 Discussion Visual examination of the fracture surface revealed transgranular cracking, indicating brittle fracture. Although the tensile properties of the forging material...
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
... in railroad maintenance service. Ancillary property requirements included a 285 to 331 HB hardness range and minimum impact energy of 27 J (20 ft · 1bf) at −40 °C (−40 °F). The conditions at the time of failure were characterized as relatively cold. Investigation The bracket fractured catastrophically...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001685
EISBN: 978-1-62708-235-8
... Typical Properties of Aged Uranium-0.8 wt % Ti Ultimate tensile strength 1500 MPa Yield strength 965 MPa Total elongation 18% Fracture toughness (K IC ) 50 MPa × m 3 2 Hardness (1000-g load) 420 dph Density 18.5 g/cc During the quenching operation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001550
EISBN: 978-1-62708-228-0
... Abstract A 100,000 barrel crude oil storage tank rupture caused extensive property damage in Dec 1980, in Moose Jaw, Saskatchewan. Failure was attributed to a brittle fracture that originated at a weld between a reinforcing pad and a manway nozzle. Factors that contributed to the brittle...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001708
EISBN: 978-1-62708-217-4
... (a) Minor casting flaws visible on fracture surface (b) casting flaw that reduced the strength and ductility The results in Table 1 show that at the one 3rd thickness location, both propeller blades have similar strength properties. The yield and tensile strengths at this location...
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 Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001531
EISBN: 978-1-62708-231-0
... to the performance of cartwheel. Dynamic fracture toughness Fatigue property Performance evaluation Railroad wheels Static mechanical property Fe-0.55C-0.73Mn Fe-0.60C-0.85Mn Fe-0.5C-0.7Mn Rolling-contact wear Spalling wear Fatigue fracture 1. Introduction The railway system in China plays...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001298
EISBN: 978-1-62708-215-0
... by acid etching. Post-plating baking operations subsequently reduced the fatigue strength of the spar. Chemical etching Fatigue strength Mechanical properties Rotor blades 7075-T7351 UNS A97075 Pitting corrosion Fatigue fracture Surface treatment related failures Background...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001372
EISBN: 978-1-62708-215-0
... Abstract A coupling in a line-shaft vertical turbine pump installed in a dam foundation fractured after a very short time. The coupling material was ASTM A582 416 martensitic stainless steel. Visual, macrofractographic, and scanning electron microscopic examination of the coupling showed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0089254
EISBN: 978-1-62708-225-9
... of the wedge-shaped middle rings fractured prior to having been fully torqued, preventing the sprocket from being locked to the shaft. “Woody” fracture features, as a result of decohesion between a high volume fractions of manganese sulfide stringers and the matrix, was revealed during examination...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0089572
EISBN: 978-1-62708-218-1
... and tempering to achieve better mechanical properties. Brittle fracture Casting defects Cracking (fracturing) Equilizer beams Foundry practice Gating and risering Normalizing (heat treatment) Tempering Trucks ASTM A148 grade 105-85 UNS D50850 Casting-related failures Heat treating-related...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001527
EISBN: 978-1-62708-224-2
... Abstract Mechanical properties of wire ropes, their chemical composition, and the failure analysis process for them are described. The wires are manufactured from high-carbon, plain carbon steel, with high-strength ropes most often manufactured from AISI Grade 1074. During visual failure...
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
... strength increases, the amount of ductility associated with fracture decreases and the amount of cleavage, or brittle fracture, increases. As out earlier, the center of 16 of the 22 cores had higher than permissible carbon levels. These samples all had poor impact properties. Because of this effect...