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overload failure

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0090943
EISBN: 978-1-62708-219-8
.... Some of the cracking did not occur at casting imperfections or repair welds. Fig. 1 Overload failure of a bronze worm gear. (a) An opened crack is shown with a repair weld, a remaining casting flaw, and cracking in the base metal. (b) Electron image of decohesive rupture in the fine-grain weld...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0090971
EISBN: 978-1-62708-222-8
...Abstract Abstract A die-cast zinc adapter used in a snowthrower failed catastrophically in a brittle overload manner. The component had a chemical composition similar to standard zinc alloy ZA-27 (UNS Z35840), although the iron content was much higher and the copper slightly lower...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0047312
EISBN: 978-1-62708-224-2
... • Becker W.T. and McGarry D. , Mechanisms and Appearances of Ductile and Brittle Fracture in Metals , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 , p 587 – 626 10.31399/asm.hb.v11.a0003538 • Miller B.A. , Overload Failures , Failure...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001501
EISBN: 978-1-62708-221-1
... Handbook , ASM International , 1986 , p 586 – 601 10.31399/asm.hb.v11.a0001815 • Miller B.A. , Overload Failures , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 , p 671 – 699 10.31399/asm.hb.v11.a0003543 • Ahmed R. , Rolling...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001672
EISBN: 978-1-62708-236-5
...) that was the source of each crack. The fracture of the oil quenched and tempered (HRC 50 ASTM A229) spring was by stress-corrosion cracking after the crane fell into the sea because fatigue cannot account for the fractures observed. The crane failure was caused by an overload created by the operator catching a free...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0049797
EISBN: 978-1-62708-235-8
... that intergranular cracking observed in this alloy was caused during heat treating as the thread root served as an effective stress concentration and induced quench cracking. It was found that fracture in the overload region occurred by a ductile void growth and coalescence process. Premature failure of the threaded...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0047312
EISBN: 978-1-62708-224-2
... • Becker W.T. and McGarry D. , Mechanisms and Appearances of Ductile and Brittle Fracture in Metals , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 , p 587 – 626 10.31399/asm.hb.v11.a0003538 • Miller B.A. , Overload Failures , Failure...
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
...Abstract Abstract Overload failures refer to the ductile or brittle fracture of a material when stresses exceed the load-bearing capacity of a material. This article reviews some mechanistic aspects of ductile and brittle crack propagation, including a discussion on mixed-mode cracking, which...
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
...Abstract Abstract This article aims to identify and illustrate the types of overload failures, which are categorized as failures due to insufficient material strength and underdesign, failures due to stress concentration and material defects, and failures due to material alteration...
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
...: overload 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...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001537
EISBN: 978-1-62708-234-1
... the exact mode of fracture. Electron fractography revealed that five different modes of crack growth were operative as the part failed. Region 1 was a shallow zone (about 0.002 in. at its deepest) of dimpled structure typical of an overload failure. Region 2 was a zone that grew by a stress corrosion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0090639
EISBN: 978-1-62708-227-3
... on cargo ships with the cracking problem supported the conclusion that the failure was caused by overload. Additional testing showed that the overload failure and the transition from ductile to brittle fracture were facilitated by a combination of high brittleness due to flame cutting, increased hardness...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001504
EISBN: 978-1-62708-217-4
... with aluminum alloys. Very few overload failures were noted. A number of causes were identified: design deficiencies and manufacturing defects leading mainly to fatigue failures, and poor materials selection and improper maintenance as the principal causes of corrosion-related failures. The survey showed...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001830
EISBN: 978-1-62708-241-9
..., suggesting that the effects of fatigue-assisted corrosion had advanced to the point where one of the bolts fractured and broke free. The inertial unbalance produced excessive vibration, subjecting the remaining bolts to overload failure. threaded fasteners fracture corrosion fatigue chromium alloy...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091028
EISBN: 978-1-62708-229-7
... inspection, 2% nital etched 297x images, chemical analysis, and SEM fractographs) supported the conclusion that the superheater tube failed as a result of long-term overheating. Substantial creep damage reduced the strength of the tube to the point that overload failure occurred. No recommendations were made...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0060097
EISBN: 978-1-62708-219-8
... was revealed by metallographic examination. The fracture features were found to be characteristic of an overload failure in a ductile material. The ruptured tubes were concluded as a result of examination to have failed as a result of excessive internal pressure. The source of the excessive internal pressure...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0090994
EISBN: 978-1-62708-225-9
... that the springs failed during installation due to the presence of preexisting defects. Crack surfaces were found to be corroded and phosphate coated, indicating that the cracks occurred during manufacture. Installation, which presumably entailed some axial extension, resulted in ductile overload failure...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001383
EISBN: 978-1-62708-215-0
... indicate either a fatigue mechanism or ductile overload failure. SEM analysis revealed that the mode of fracture was intergranular decohesion, which indicates an environmental influence in the fracture mechanism. The primary fracture initiated at a thread root and propagated by environmentally-assisted...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0091096
EISBN: 978-1-62708-234-1
.... , Overload Failures , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 , p 671 – 699 10.31399/asm.hb.v11.a0003543 Examination disclosed that the shaft had broken at the shear groove and that the fracture surface contained a star-shaped pattern ( Fig. 1b...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001024
EISBN: 978-1-62708-214-3
... striations on the fracture surface between the point at which the fatigue crack penetrated the wall of the spar (allowing the nitrogen to escape) and the transition from fatigue crack growth to the final overload failure. The striation counts were performed at two laboratories by examination...