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material handling equipment

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.9781627082242
EISBN: 978-1-62708-224-2
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048035
EISBN: 978-1-62708-224-2
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048068
EISBN: 978-1-62708-224-2
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048102
EISBN: 978-1-62708-224-2
... forging defect along the fracture surface (at right) and decarburized web surface (bottom). 35× Chemical analysis showed that the material was equivalent to 1055 steel. Metallographic examination revealed that the wheel had been normalized and that the tread had been hardened to a depth of 5 mm...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048073
EISBN: 978-1-62708-224-2
..., a small ductile shear lip, was approximately 30° off-center, indicating low stress and rotational bending. The shaft material was 1030 steel, as specified, and had a slightly acicular fine-grain structure. Conclusion The shaft failed by fatigue fracture, which originated at a sharp corner...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048060
EISBN: 978-1-62708-224-2
... which indicated that the material was in the as-forged condition (which meant lower fatigue strength). The fracture was concluded to have occurred due to stress concentration in the root of the last thread. Normalizing of the crane hook after forging was suggested as a corrective measure. A stress...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048026
EISBN: 978-1-62708-224-2
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048048
EISBN: 978-1-62708-224-2
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048052
EISBN: 978-1-62708-224-2
... Abstract Several thousands of new 16 mm diam alloy steel sling chains used for handling billets failed by chain-link fractures. No failures were found to have occurred before delivery of the new chains. It was observed that the links had broken at the weld. It was found that all failures had...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048031
EISBN: 978-1-62708-224-2
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001463
EISBN: 978-1-62708-224-2
... Penetration Radiography Welded joints EN14A Joining-related failures Fatigue fracture The link which failed was a special long one connecting a grab chain to a swivel. It was made from 15 16 in. diameter material, marked “SWL, 5 tons, 5 cwts. steel”, and had fractured through the butt...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0047432
EISBN: 978-1-62708-224-2
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048064
EISBN: 978-1-62708-224-2
... hooks were flame cut from ASTM A242 fine-grain steel plate, ground to remove the material damaged by flame cutting and stress relieved at 620 deg C. Cranes Flame cutting Hooks Martensite Normalizing (heat treatment) 1040 UNS G10400 Fatigue fracture A 10,890-kg (12-ton) coil hook failed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001196
EISBN: 978-1-62708-224-2
... the surface of the arm a large number of surface cracks became visible. These cracks penetrated the material to a maximum depth of about 3 mm, and appeared to have originated during the forging of the fork. Paint which had penetrated into the cracks confirmed this conclusion. Forging at too low a temperature...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048020
EISBN: 978-1-62708-224-2
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001467
EISBN: 978-1-62708-224-2
.... The material was a mild steel in the normalized condition. The appearance of the fracture indicated failure was due to bending stresses. The absence of any fillet radius at the reduction in diam provided a region of stress concentration from which fatigue cracks developed. Diameter Hoists Radii Shafts...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001244
EISBN: 978-1-62708-224-2
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048095
EISBN: 978-1-62708-224-2
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
... stringers and ferrite bands in the base metal matrix. The material used for this application was very anisotropic, exhibiting substantially poorer long and short transverse mechanical properties than longitudinal properties. Lifting eye Manganese sulfide Nonmetallic inclusions 1144 UNS G11440...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001461
EISBN: 978-1-62708-224-2
... was of a smooth texture, the fracture was brightly crystalline indicative of a brittle failure. Microscopic examination showed the material was a low-carbon steel in the normalized condition; no abnormal features were observed. The basic cause of failure was the presence of a fatigue crack at the change...