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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0048596
EISBN: 978-1-62708-221-1
...-bolts fractured in fatigue because the bolt material had poor hardenability relative to the diam of the bolts. The bolt material was changed from 1045 steel to 1527 steel, a warm-finished low-alloy steel. The diameter of the bolts was reduced to 27.2 mm and the threads were rolled rather than cut...
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Published: 01 June 2019
Fig. 1 Fitting for attaching dual wheels to a tractor axle that failed when 1045 steel U-bolts in the assembly were overstressed. The bolts failed because of poor hardenability relative to their diameter. More
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Published: 01 January 2002
Fig. 24 Deformation and fracture map for spheroidized 1045 steel. Source: Ref 40 More
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Published: 01 January 2002
Fig. 49 Micrograph of AISI 1045 as-forged steel illustrating a forging lap. 27×; 2% nital etch. Source: Ref 27 More
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Published: 01 January 2002
Fig. 55 Micrograph of AISI 1045 steel as quenched and tempered. Microstructure shows bands with banded tempered martensite and some bainite. The crack profile revealed evidence of tempering oxide and secondary cracking. 200×; 2% nital etch. Source: Ref 27 More
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Published: 01 January 2002
Fig. 56 Micrograph of AISI 1045 steel as quenched and tempered; representative of underheated microstructure adjacent to cracking. 376×; 2% nital etch. Source: Ref 27 More
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Published: 01 January 2002
Fig. 8 Fitting for attaching dual wheels to a tractor axle that failed when 1045 steel U-bolts in the assembly were overstressed. The bolts failed because of poor hardenability relative to their diameter. More
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Published: 15 January 2021
Fig. 5 Scanning electron microscopy images of worn surfaces of AISI 1045 medium-carbon steel samples after predeformation (tensile) at two different strain rates. (a) Sample predeformed at a strain rate of 0.75 × 10 −2 /s. (b) Sample predeformed at a strain rate of 1/s. Wear tests were More
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Published: 15 January 2021
Fig. 25 Deformation and fracture map for spheroidized 1045 steel. Source: Ref 16 More
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Published: 30 August 2021
Fig. 11 Overheated surface on SAE 1045 steel showing excessive grain growth and cracking. Hardness at a depth of 250 μm was HRC 59. Source Ref 7 More
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Published: 30 August 2021
Fig. 7 Fitting for attaching dual wheels to a tractor axle that failed when 1045 steel U-bolts in the assembly were overstressed. The bolts failed because of poor hardenability relative to their diameter. More
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Published: 30 August 2021
Fig. 4 S - N curve for 1045 steel. Adapted from Ref 6 More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c0047406
EISBN: 978-1-62708-232-7
... Abstract A cast countershaft pinion on a car puller for a blast furnace broke after one month of service; expected life was 12 months. The pinion was specified to be made of 1045 steel heat treated to a hardness of 245 HRB. The pinion steel was analyzed and was a satisfactory alternative...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001073
EISBN: 978-1-62708-214-3
... the original (and specified) material was medium-carbon 1045 steel. The low-carbon steel also had lower hardness because of a lower pearlite fraction in the microstructure. It was recommended that replacement sprockets be made of normalized 1045 steel. It was further suggested that wear resistance could...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0047850
EISBN: 978-1-62708-233-4
... Abstract The fan drive support shaft, specified to be made of cold-drawn 1040 to 1045 steel, fractured after 2240 miles of service. It was revealed by visual examination of the shaft that the fracture had initiated near the fillet at an abrupt change in shaft diameter. The cracks originated...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0090988
EISBN: 978-1-62708-236-5
... the requirements for a grade 1045 medium-carbon, plain carbon steel. Investigation (visual inspection, chemical analysis, 2% nital etched 119x images, and tension testing) supported the conclusion that the cylinder pipe burst in a mixed brittle-ductile manner due to overpressurization. It is likely...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001138
EISBN: 978-1-62708-231-0
... effects, failure of the thread structure of the clevis occurred. The failure occurred where the cylinder rod screws into the clevis. The rod was manufactured from 1045 steel. Cylinder rods Fretting fatigue Galling Railroad wheels 1045 UNS G10450 Fatigue fracture Fretting wear A. Design...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001378
EISBN: 978-1-62708-215-0
... Abstract Two 38 mm (1.5 in.) diam threaded stud bolts that were part of a steel mold die assembly from a plastics molding operation were examined to determine their serviceability. Chemical analysis showed the material to be a plain carbon steel that approximated 1045. Visual examination...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001382
EISBN: 978-1-62708-215-0
... and surface groove located at midspan. Drillings machined from the bolt underwent chemical analysis, which confirmed that the material was AISI 1045 carbon steel, in accordance with specifications. Two sections cut from the bolt were subjected to metallographic examination and hardness testing. The fracture...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001766
EISBN: 978-1-62708-241-9
... anchor fracture weld defect carbon steel weld crack energy dispersive spectroscopy torsional strength AISI 1045 (nonresulfurized carbon steel) UNS G10450 Introduction During erection of a set of power transmission lines crossing a major interstate highway, a temporary anchor being...