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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001516
EISBN: 978-1-62708-234-1
... head and disk asperities. The contact generates debris that, as it accumulates, increases contact pressure between the read-write head and the surface of the disk. Under sufficient pressure, the magnetic coating material begins wearing away, resulting in data loss. Data errors Data storage Disc...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001695
EISBN: 978-1-62708-229-7
... of the aluminum clad. Examinations of this fuel and other data from a corrosion surveillance program in the water basins have provided basic insight into the corrosion process and have resulted in improvements in the storage facilities and basin operations. Since these improvements were implemented, there has...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001639
EISBN: 978-1-62708-229-7
..., annular space of the 46 year old, inactive, 1.03 million gallon waste storage tank. A steerable, magnetic wheel wall crawler was inserted into the annular space through small (6 in., or 150 mm, diam) holes/risers in the tank top. The crawler carried the equipment used to simultaneously collect data...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001798
EISBN: 978-1-62708-241-9
... with thermogravimetric analysis. Based on test data, the epoxy resin had not been properly cured and was hydrolyzed in its compromised state because of humidity. Hence, the depolymerized material gradually softened to the point where the effect of creep caused it to flow, ultimately causing the failure...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006762
EISBN: 978-1-62708-295-2
... (for example, when work involves litigation), media might need to be sent to designated people. Several considerations and expectations must be addressed with the customer at the onset of the investigation, including whether the use of portable storage media or online data storage in logical pools...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001693
EISBN: 978-1-62708-228-0
... energy and the percentage of shear fracture for the plate versus test temperature. The fracture appearance transition temperature (FATT) is approximately 50° C. Fig. 3 Charpy v-notch energy versus temperature for the tank shell steel. The data for shear fracture on the impact specimens are also...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0090454
EISBN: 978-1-62708-220-4
... with the nominal value indicated on the material data sheet, 4.0 g/10 min. As such, it was apparent that the vessel material had not undergone molecular degradation. The specific gravity of the resin was measured. The material produced a result of 0.965. This indicated that the material had a relatively high level...
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
... (250 psi) should be approximately 145 MPa (21 ksi). Unfortunately, very little mechanical property data are available for steels between 550 and 750 °C, because this is above the normal application range and below the normal metalworking range. Oren reported the high-strain-rate tensile strengths...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001525
EISBN: 978-1-62708-220-4
... resistance ( RP ). Higher polarization resistance values signify better corrosion resistance. Since EIS involves a very small amplitude signal (5 mV), it causes minimal disturbance to any passive layer that may be present on the surface of the sample. One way to represent EIS data is by Bode plots...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001843
EISBN: 978-1-62708-241-9
... <0.01 <0.01 Sb <0.01 <0.01 <0.01 Si 0.02 0.01 0.01 Zn 0.01 0.01 0.01 Results in wt.% unless otherwise indicated. a Main element involved in this failure The storage environment for the connectors was assessed and data revealed that the average monthly...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001647
EISBN: 978-1-62708-235-8
... the efforts to trace the root cause of the porosity to the geometric conditions of the weld joint and establish corrective actions to minimize such porosity. GTAW Porosity 316L UNS S31603 Joining-related failures Introduction Evaluation Data Discussion and Model Development...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001550
EISBN: 978-1-62708-228-0
... material had poor impact properties and a high DBTT. Fig. 5 Charpy V-notch impact energy data for pad and shell plate (mean values). It is clear that the cause of the tank failure was brittle fracture originating at the welds connecting the manway neck to the reinforcing pad at the northwest...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001608
EISBN: 978-1-62708-236-5
..., from the background given above, every shipment of hot rolled steel coil and plate is rusted to some extent. The questions are “How much?” and “Is the rusting logically claimable under an insurance policy?” In my organization, we are often asked to provide qualitative data and opinions to enable...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
... , ASTM 3. “Applying Statistics to Analysis of Corrosion Data,” G 16, Annual Book of ASTM Standards , ASTM 4. “Practice for Dealing with Outlying Observations,” E 178, Annual Book of ASTM Standards , ASTM 5. Elliott P. , Design Details to Minimize Corrosion , Corrosion...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001347
EISBN: 978-1-62708-215-0
..., the localized stress at the shell to nozzle connection at the north and south outer diameter (assuming a monoblock attachment and that plane sections remain plane), reach an ultimate stress at about 2.8 MPa (405 psi). The classical solutions provide useful data for estimating critical crack sizes. In our case...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001272
EISBN: 978-1-62708-215-0
... fracture toughness. It is incorrect to assume that plane strain conditions cannot be met for thinner material, and in fact there is both visual and quantitative data in this situation to show that the fracture above the bolt hole was plane strain. The sequence of events leading to complete fracture...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001765
EISBN: 978-1-62708-241-9
... and first to third course shell plates from the bottom. Sand blasting and repainting of the affected plates was attempted as a remedial measure. However, during the sand blasting, holes and deep pitting were observed on the bottom plates. The detail of the tank is described in Table 1 . Information data...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001580
EISBN: 978-1-62708-229-7
...Abstract Abstract Laser surface mapping of a canister closure weld provided data that was used to generate three-dimensional images of the weld failure. These images were invaluable in that they allowed people who did not have access to the canister to see the anomaly in great detail...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006809
EISBN: 978-1-62708-329-4
... of API 579, or explicit welding simulations can be performed to obtain a more accurate solution, so long as all applicable data are available. If test data are available to quantify material fracture toughness as a function of temperature for the specific component being assessed (including the effect...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001770
EISBN: 978-1-62708-241-9
... with a 100 kg load for 30 s on a suitably prepared surface as per ASTM standard E 92-82. Macrohardness data reported in this paper were the average of at least five measurements per sample. Tension tests were conducted on standard specimens of rectangular cross section as per ASTM A 370-97a on Instron 60...