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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...
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
... 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 be...
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 to...
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
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...
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
... 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 that the...
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...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001595
EISBN: 978-1-62708-235-8
... included to illustrate these applications. Thermal response ASTM A232 UNS K15047 ASTM A572 grade 50 UNS K02303 1045 UNS G10450 ASTM A36 UNS K02599 Brittle fracture Joining-related failures The primary characteristic of steel that allows...
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 at...
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 During erection of a set of power transmission lines crossing a major interstate highway, a temporary anchor being utilized...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001074
EISBN: 978-1-62708-214-3
... minimal machining. The heat treatment specified on the part was as follows: Normalizing the unmachined castings by heating to 1045 °C (1915 °F) and soaking for 4 h, followed by air cooling. This was repeated twice. Hardening the machined castings by oil quenching from 1040 °C (1905 °F), followed...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001763
EISBN: 978-1-62708-241-9
... fatigue fracture transient torsional overloading medium carbon steel spline teeth deformation stress analysis fracture toughness SAE/AISI 1045 (medium-carbon alloy steel) UNS G10450 All-terrain vehicles (ATVs) can be considered fourwheeled motorcycles for off-road operation with...
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
... parts) for a given tool life when changing from AISI 1045 steel to AISI 1144 resulfurized grade [ 7 ]. Increased “machinability” can be measured in many other ways, such as lower cost due to removal of secondary operations as a result of improved surface finish on resulfurized parts. The mechanism of...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003510
EISBN: 978-1-62708-180-1
... fixed period of time until the transformation is complete, at which point the transformation products are determined. This is done repeatedly until a TTT diagram is constructed, such as that shown for an unalloyed steel (American Iron and Steel Institute, or AISI, 1045) in Fig. 1 . Time-temperature...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006794
EISBN: 978-1-62708-295-2
... surface. For example, strain rate can markedly influence the fracture toughness of cold-worked alloys in addition to their hardness. Figure 5 illustrates surface morphologies of cold-worked AISI 1045 medium-carbon steel samples that were predeformed at two different strain rates (0.75 × 10 −2 /s and 1/s...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001812
EISBN: 978-1-62708-180-1
... -in.) diam rod broke after less than 100 h of service. 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. The material for the U-bolts...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001811
EISBN: 978-1-62708-180-1
... specified for the particular application. Misalignment of shafts resulting in failure is a common occurrence and is difficult to eliminate when dealing with large equipment. Frequently, 1040 or 1045 steel is specified for shafts. Failures in shafts made of these steels can often be minimized by heat...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001822
EISBN: 978-1-62708-180-1
...-fracture phenomenon, that is, does the molten copper flow into the grain boundaries and cause failure or does the molten copper flow into stress cracks after failure. In these tests, 19-mm ( 3 4 -in.) diam centerless-ground AISI 1045 carbon steel samples were left bare or wrapped with 0.13-mm...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003566
EISBN: 978-1-62708-180-1
... required” ( Ref 6 ). Subsequently, as a result of spalling tests conducted with a variety of steels (1045, 1060, 1072, 1075, 1080, 1552, 9260, and 4340), J.W. Lodge reached the same conclusion. In a letter dated June 5, 1982, to Mr. Robert Burke, president of Warwood Tool, he stated, “My tests didn't show...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1