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Casting-related failures

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... of these. A design-related failure is one in which even a perfect casting (free from unexpected deficiencies and meeting specified requirements) does not perform to the requirements of the application. Correspondingly, a defect-related failure is one resulting from a condition that falls outside of the established...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006831
EISBN: 978-1-62708-329-4
.... It describes the general root causes of failure attributed to the casting material, production method, and/or design. The article also addresses conditions related to the casting process but not specific to any metal group, including misruns, pour shorts, broken cores, and foundry expertise. The discussion...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001029
EISBN: 978-1-62708-214-3
... that the cracks originated in hot tear locations in the castings. Microprobe analysis of fracture surfaces in the hot tear region indicated a much higher silicon-to-aluminum ratio compared with the overload fracture area. No microstructural anomalies related to the failure were found during metallographic...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001394
EISBN: 978-1-62708-234-1
... in this region suggested that failure resulted from an intergranular attack. Subsequent microscope examination confirmed the generally intergranular mode of failure. A macro-etched section near the fracture revealed a radial arrangement of columnar crystals, indicating that the spindle was a cast...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0046505
EISBN: 978-1-62708-219-8
... was occasionally used in the system. Analysis (visual inspection and 250x micrograph) supported the conclusions that failure of the latch was caused by plastic deformation from extensive loss of metal by galvanic corrosion and the sudden loading related to the tripping of the valve. Failure in some regions...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001085
EISBN: 978-1-62708-214-3
... the main crack indication revealed that the failure was caused by hot cracking related to original weld repairs performed on the impeller casting. Castings Nuclear reactor components Repair welding Rotary pumps Weld defects Welded joints CA-15 UNS J91150 Joining-related failures Background...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0047263
EISBN: 978-1-62708-218-1
... with the exhaust-gas flow chamber. No recommendations were made. Castings Cylinder heads Porosity Shrinkage Gray iron Casting-related failures An engine cylinder head failed after operating just 3.2 km (2 miles) because of coolant leakage through the exhaust port. Investigation Conclusion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001201
EISBN: 978-1-62708-232-7
... at the stained spot. This led to the conclusion that a shrinkage cavity was present. Metallographic examination confirmed that the fracture of the swivel head was caused or favored by a cavity. Castings Shrinkage Spindles Steel casting Casting-related failures The swivel head of a driving spindle...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c9001014
EISBN: 978-1-62708-223-5
... of adequate tempering was the secondary cause. Castings Porosity Prestressed concrete Shrinkage Stretching Tools Carburizing steel Casting-related failures This tool is used to stretch reinforcement wires in prestressed concrete. Reinforcement wires are apparently inserted into a hole...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001016
EISBN: 978-1-62708-236-5
... was apparently not significant as far as its usage was concerned. The failure could have been avoided by providing support underneath the overhanging member. Freight transportation Motor trucks Packaging Presses Irons and steels Casting-related failures An automatic press for making burlap bags...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001222
EISBN: 978-1-62708-225-9
... of the microstructure and were primarily responsible for the failure of the lift disk. Cracking (fracturing) Die castings Inclusions Porosity Aluminum brass Casting-related failures The full lift disk, made of die cast brass, which served as a lifting aid in a safety valve, had cracked in service...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c0048804
EISBN: 978-1-62708-230-3
... in solidification rates, and variation in tensile strength to be noted during inspection were described. Cracking (fracturing) Dryer rolls Paper machines Gray iron Casting-related failures (Other, general, or unspecified) fracture Unlike the individual examples of failures discussed throughout...
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
... inclusion morphology, and reevaluation of the casting design was suggested to minimize shrinkage. Brackets Castings Inclusions Manganese sulfide Shrinkage ASTM A148 grade 135-125 UNS D51250 Casting-related failures Brittle fracture A cast steel bracket manufactured in accordance with ASTM...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046233
EISBN: 978-1-62708-235-8
... and instituting receiving inspection of the connection castings. Castings Porosity Trailers Trucks Welded defects Welded joints Welded steel Joining-related failures Casting-related failures Fatigue fracture A drawbar connecting the two tank-type trailers of a highway gasoline rig broke while...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001522
EISBN: 978-1-62708-235-8
... casting process. Foundry practice Gating and risering Housings Permanent mold castings Porosity A357 UNS A13570 Casting-related failures A concerted research effort undertaken to improve the strength properties of cast aluminum forward housing assemblies for guided munitions may improve...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0089696
EISBN: 978-1-62708-220-4
... that crosshead castings be properly inspected before machining. Revision of foundry practice to reduce or eliminate porosity was also recommended. ASTM A148 grade 105-85 (Medium-carbon steel casting) UNS D50800 Joining-related failures Casting-related failures Fatigue fracture Background Visual...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c0089543
EISBN: 978-1-62708-226-6
... the failure. Bone screws Casting defects Screws Surgical implants ASTM F75 Casting-related failures Portions of the threads of the screw shown in Fig. 1(a) had broken off, and other threads had cracked. The screw was made from a cast Co-Cr-Mo alloy. A longitudinal section through the screw...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0089526
EISBN: 978-1-62708-218-1
... discussed. Controlled pouring temperatures, improved design and use of chills were recommended to avoid the casting defects. Casting defects Cracking (fracturing) Cylinder heads Microporosity Shrinkage Gray iron Casting-related failures A cracked cylinder head was removed from an engine...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0047220
EISBN: 978-1-62708-220-4
..., reheated to 870 deg C (1600 deg F), and oil quenched. The larger gear should be tempered to 200 to 240 HRB, and the smaller gear to 240 to 280 HRB. Gears Materials selection Oil pumps Residual stress 100-70-03 Class 40 UNS F34800 UNS F12801 Casting-related failures Brittle fracture...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001284
EISBN: 978-1-62708-215-0
...) Die casting dies, design Die castings Sporting goods AM60A UNS M10600 Casting-related failures Background Testing Procedure and Results Discussion Conclusion and Recommendations Selected Reference Selected Reference • Failures Related to Casting , Failure Analysis...