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ultimate tensile strength

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001731
EISBN: 978-1-62708-217-4
...Abstract Abstract Service failures have occurred in a number of aircraft parts made of quenched and tempered steel heat treated to ultimate tensile strengths of 260,000 to 280,000 psi. Some of these failures have been attributed to “delayed cracking” as a result of hydrogen embrittlement...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091644
EISBN: 978-1-62708-217-4
... splice attachment. The bolt was fabricated from PH13-8Mo stainless steel heat treated to have an ultimate tensile strength of 1517 to 1655 MPa (220 to 240 ksi). A water-soluble coolant was used in drilling the bolt hole where this fastener was inserted. Investigation (visual inspection, 265 SEM images...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0092142
EISBN: 978-1-62708-217-4
... splice attachment. The bolt was fabricated from PH13-8Mo stainless steel heat treated to have an ultimate tensile strength of 1517 to 1655 MPa (220 to 240 ksi). A water-soluble coolant was used in drilling the bolt hole where this fastener was inserted. Investigation (visual inspection, 265 SEM images...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001717
EISBN: 978-1-62708-217-4
..., the pilot had to perform a low hover maneuver to the maintenance facility, where ground crews assembled concrete blocks at the appropriate height to allow the aircraft to safely touch down. The failed part was fabricated from maraging 300 grade steel (2,068 MPa [300 ksi] ultimate tensile strength...
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
... testing. The fracture origin was typical of fatigue. The ultimate tensile strength of the bolt was in excess of requirements. Wear patterns indicated that the bolt had been frozen in position for a protracted period and subjected to repeated bending stresses, which resulted in fatigue cracking and final...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0048634
EISBN: 978-1-62708-225-9
... conditions, fasteners from several lots were torqued to 80% of rated ultimate tensile strength into a predrilled aluminum alloy plate. This high torque (greater than normal installation) was used to speed the failure rate of the fasteners. After 335 h, a head was lifted with fingernail pressure from...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001112
EISBN: 978-1-62708-214-3
... × 10 mm (17.7 × 5.9 × 0.4 in.), and a beam length of 12.41 m (40.7 ft) ( Fig. 1 ). The beam was made ofcarbon steel with the following maximum specified composition: 0.23% °C, 0.055% S, and 0.055% P Mechanical property specifications were: yield strength, ∼255 MPa (37 ksi); ultimate tensile strength...
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
... initiation and propagation at the spline tooth root. To design a transmitted shaft with high service durability, mechanical characteristics such as fatigue strength, ultimate tensile strength, and fracture toughness are important properties that should be considered in material selection at design stage...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001040
EISBN: 978-1-62708-214-3
... requirements. Most Probable Cause Remedial Action Failure had occurred in service at very low mileage under a normal load situation. The axle was made of AISI 4140 steel oil quenched and tempered to AAR specification M101. Specified mechanical properties were: ultimate tensile strength, 830 MPa...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001100
EISBN: 978-1-62708-214-3
... bolt, the 0.2% offset yield strength was found to be 467 MPa (67.8 ksi). The ultimate tensile strength was 626 MPa (90.9 ksi). Elongation over the 25.4 mm (1 in.) gage length was 29.7%, and the reduction of area was 56%. For the as-fractured bolt, the 0.2% oltset yield strength was found to be 509 MPa...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001268
EISBN: 978-1-62708-215-0
... from Inconel 718 steel in accordance with specification AMS 5596. This specification requires components to he heat-treated to 1035 MPa (150 ksi) minimum yield strength, 1240 MPa (180 ksi) minimum ultimate tensile strength, 12% minimum elongation, and a hardness of 38 to 44 HRC. A 100% liquid penetrant...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001685
EISBN: 978-1-62708-235-8
... in the notched specimens with no appreciable effect on strength. Fig. 7 Geometry of notch machined into tensile specimen to simulate surface defect. Effect of Notch on Mechanical Properties Table 2 Effect of Notch on Mechanical Properties Smooth Notched Ultimate tensile strength (MPa...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001547
EISBN: 978-1-62708-225-9
... a black oxide coating. For wire of this diameter, the CH900 condition provides an ultimate tensile strength in excess of 320 000 psi (2206 MPa). 1 This high strength is the result of extensive cold working prior to aging. In an effort to determine the reason some springs are susceptible...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001821
EISBN: 978-1-62708-241-9
... large grain structure continuous transverse grain boundaries microstructural analysis ultimate tensile strength A202B (chromium-manganese-silicon alloy steel) Background Failure Investigation of Excess Flow Valves on Stationary Tank BLEVE of Truck-Mounted Tank Discussion of BLEVE...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001303
EISBN: 978-1-62708-215-0
... holes, as indicated in Fig. 1 The results of tensile tests are shown in Table 2 , together with the minimum specified properties for separately cast test bars of alloy LM6M. Results of tensile testing Table 2 Results of tensile testing Specimen Ultimate tensile strength Yield...
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
.... Manganese sulfides have little or no effect on yield strength, ultimate tensile strength, work hardening exponent, and work hardening rate in the longitudinal direction, which makes it advantageous for simple loading applications [ 8 , 9 ]. Sulfide content is known to decrease transverse ductility...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001379
EISBN: 978-1-62708-215-0
... relief treatment (causing hydrogen embrittlement), a stress durability test was carried out in accordance with MIL-STD-1312, test 5. Eleven new bolts from inventory and six field bolts were loaded to 80% of the ultimate tensile strength and in the loaded condition subjected to 200-h stress durability...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001366
EISBN: 978-1-62708-215-0
... Ultimate tensile strength determined on a sub-size specimen excised from the impeller was 475 MPa (69 ksi); the specification requirement is 483 MPa (70 ksi) minimum. The small size of the test specimen precluded the use of extensometers; therefore, accurate and valid measurements of elongation and yield...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0090994
EISBN: 978-1-62708-225-9
... 500 ). This equates to an approximate ultimate tensile strength slightly higher than the specified range. The springs failed during installation due to the presence of preexisting defects. The crack surfaces were corroded and phosphate coated, confirming that they had occurred during manufacture...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001260
EISBN: 978-1-62708-235-8
... Mechanical properties (on heat treated bars intended for induction hardening) Yield 70 kp/mm 2 Ultimate tensile strength 88 kp/mm 2 Elongation 18.0% Impact 45.52 ft lbs (Izod) The stock when examined by magnaflux method revealed presence of longitudinal cracks of varying...