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Image
Published: 01 December 1992
Fig. 2 Bend test methods and fixtures. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047602
EISBN: 978-1-62708-235-8
... Abstract Parts of 21Cr-6Ni-9Mn stainless steel that had been forged at about 815 deg C (1500 deg F) were gas tungsten arc welded. During postweld inspection, cracks were found in the HAZs of the welds. Welding had been done using a copper fixture that contacted the steel in the area of the HAZ...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006387
EISBN: 978-1-62708-217-4
... system. Some loads could be absorbed however, when the aircraft is subjected to G loads. Visual examination of the part revealed that cracks through the wall thickness initiated on the inner walls of the fixture. Scanning electron microscopy (SEM) and electron optical examination revealed...
Image
Published: 01 June 2019
Fig. 2 Door lock cycling fixture. More
Image
Published: 01 June 2019
Fig. 3 Door lock cycling fixture. More
Image
Published: 01 June 2019
Fig. 1 Opened crack (a) in aluminum alloy 7075-T651 ejection seat swivel fixture that failed by SCC. Note crack propagation markings that suggest the crack initiated on the inside wall of the fixture and woody appearance of the fracture. (b) Higher-magnification view of fracture surface from More
Image
Published: 01 December 1993
Fig. 3 Test fixture developed and used at elevated temperature to obtain permanent deformation on cantilevered coupons cut from individual trays. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c9001573
EISBN: 978-1-62708-226-6
... Abstract TiN coated back surgery wires were made of Ti-6Al-4V. The reported failure was the presence of pits located in the uncoated area of the wires. The uncoated area of the wire is where the wire is fixtured in the coating chamber during coating. Examination and analysis of the pits using...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0090932
EISBN: 978-1-62708-235-8
... to ductile overload. The forming stresses were sufficient to initiate surface ruptures, suggestive of having exceeded the forming limit. Recommendations included examining the forming process, including lubrication and workpiece fixturing. Cold drawing Cracks Wire 303 UNS S30300 Ductile fracture...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091727
EISBN: 978-1-62708-217-4
... with available aluminum text fixtures, with 300-series stainless steel, and then with titanium. No failures occurred in aluminum fixtures (apparently it provided cathodic protection). Failures in stainless steel fixtures occurred at the specimen pin areas, not at the sharp notches used to initiate stress...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001732
EISBN: 978-1-62708-218-1
... values. To resolve the sample size problem, we decided to construct a fixture capable of cycling twelve lock assemblies simultaneously. To save time and expense, the test would be concluded when there was sufficient data available for analysis, rather than run all samples to failure. The first step...
Image
Published: 01 December 2019
Fig. 4 ( a ) Prepared shear test sample and corresponding sample. ( b ) The DIN 50162 standard used for fabricating the shear test samples and fixture More
Image
Published: 01 December 2019
Fig. 2 Testing apparatus, 60,000 lb Tinius Olsen testing machine. Load applied to the drive wrench fastened to a shaft fixture. The load initiates a static torsional load to the test wrench. The product of peak load and drive wrench determine ultimate torque More
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001274
EISBN: 978-1-62708-215-0
... of the handles bent completely upright from its original flat position after cooking and removal from microwave oven. Fig. 3 Test fixture developed and used at elevated temperature to obtain permanent deformation on cantilevered coupons cut from individual trays. Abstract A laminated-paper...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001507
EISBN: 978-1-62708-217-4
... source for creating the defects on the ID bore of the shank was considered to be the blade tip chrome plating process, which was carried out during the last overhaul prior to the failure. During chrome plating the blade is suspended in the plating bath by a fixture which clamps onto the ID shank bore...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001785
EISBN: 978-1-62708-241-9
... wrench Fig. 2 Testing apparatus, 60,000 lb Tinius Olsen testing machine. Load applied to the drive wrench fastened to a shaft fixture. The load initiates a static torsional load to the test wrench. The product of peak load and drive wrench determine ultimate torque Fig. 3 Failed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001699
EISBN: 978-1-62708-234-1
... the Cooling Tower and a tap fixture. Table 1 Water Quality Test Results from the Cooling Tower and a tap fixture. Parameter Cooling Tower Sample Sample from Tap @ Column B15/E4 Bicarbonate (ppm) 166 127 Carbonate (ppm) <20 <20 Alkalinity as CaCO 3 166 127 (ppm...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0048607
EISBN: 978-1-62708-225-9
... of 18 to 20 HRC were left uncoated for the test. All four bolts were assembled in a static test fixture and tightened to a torque value equal to 90% of their yield strength and then intermittently dipped in an acidified solution of 3.5% NaCl. Intermittent dipping consisted of a 10-min total immersion...
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
... metal. A similar sling was fabricated in the laboratory, set up in a test fixture, and subjected to three-point loading duplicating that intended for the sling that failed. The yield strength of the test sling (stress causing permanent deflection in the cross member) was 3538 kg (7800 lb...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046044
EISBN: 978-1-62708-235-8
... encrusted salt, and drying. For about 4 1 2 of the 6 h, the case was left standing on its aft end, drying and waiting for the pit furnace to be available. The 315 °C (600 °F) snap temper was used to impart sufficient ductility to the motor case so that it could be fixtured with a series...