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sample handling

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Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006771
EISBN: 978-1-62708-295-2
... discussed are the different types of samples that can be analyzed and the special sample-handling procedures that must be implemented when preparing to do failure analysis using these surface-sensitive techniques. Data obtained from different material defects are presented for each of the techniques...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001632
EISBN: 978-1-62708-234-1
... of hydrogen during the same period. 2 Remote Handling at LANSCE Remote Handling and Sample Preparation at the CMR Hot Cells Reference 1 gives detailed information about the results of this investigation and will only be summarized here. Investigation of the crack in the LANSCE beam exit window...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001444
EISBN: 978-1-62708-231-0
.... During subsequent handling, one of the rails (which were about 25 ft. long) was dropped from a height of approximately 6 ft. on to a concrete floor and it fractured into 11 pieces, each break occurring at a slot. The sample piece submitted for examination showed a wholly brittle fracture at each end...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003534
EISBN: 978-1-62708-180-1
... Analysis of Stainless Steel Example 2: XPS Analysis of Stainless Steel Example 3: TOF-SIMS Analysis of Stainless Steel Summary of Example of Stainless Steel Analysis with AES, XPS, and TOF-SIMS What Is Surface Analysis? Analytical Considerations Sample-Handling Issues Sample Types...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003529
EISBN: 978-1-62708-180-1
.... This is because the same instrumental techniques often deal with microscopic features, trace chemical contamination, and/or thin surface films. Therefore, the analyst must always be concerned with sample handling to be sure that fragile features are not altered before critical information about the surface...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0090430
EISBN: 978-1-62708-222-8
...Abstract Abstract The handle from a consumer product exhibited an apparent surface defect. The handle had been injection molded from a medium viscosity grade ABS resin. The anomalous appearance was objectionable to the assembler of the final product and resulted in a production lot being placed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001443
EISBN: 978-1-62708-235-8
... illustrated in Figure 1 , which shows the end that had fused in service and also some of the metal that had melted and run over the outer surface. In the course of subsequent handling the sample fractured about 2 1 2 in. from the fused end, revealing the presence of a large internal cavity...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001212
EISBN: 978-1-62708-235-8
... handles produced from C45 steel showed many fine cracks at the flame hardened noses. In Fig. 1 the hardened zone of one of the samples has been made visible by an etch using 10% nital. The cracks run from the corners of the marked indentations caused by the tool during alignment as shown in Fig. 2...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001822
EISBN: 978-1-62708-241-9
... that pipes are sometimes being dropped accidentally on the support from a height by the crane. Based on the aforementioned observations, it is quite possible that the pipe could have suffered from some sort of mechanical damage during handling or transportation. Fig. 7 Misaligned pipe supports...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001906
EISBN: 978-1-62708-217-4
... that the contractor was using a system that was not capable of detecting defects in certain orientations. Further, poor lug handling practice was observed during the MPI process. This combination of factors allowed defective components to leave the facility undetected. The manufacturer then took steps to minimize...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006788
EISBN: 978-1-62708-295-2
...; counts live and dead cells Quantitative polymerase chain reaction Number of microbes Corrosion coupons Corrosion rate; pitting Laboratory Trailing Source of biofilm samples for MPN, polymerase chain reaction; time-averaged rates Sessile Pressure drop Friction factor On site Leading...
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
...Abstract Abstract Two investment-cast A356 aluminum alloy actuators used for handles on passenger doors of commercial aircraft fractured during torquing at less than the design load. Visual examination showed that cracking had occurred through a machined side hole. Fractography revealed...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006759
EISBN: 978-1-62708-295-2
..., the investigator must carefully plan sampling and chemical analysis techniques while evidence in the subject parts is in the most pristine condition. During the course of an investigation, there is potential for incidental contamination, even during the nondestructive portion of the investigation, from handling...
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
...Abstract Abstract Compound bow handle risers that had failed in service and during assembly along with an unassembled riser were submitted for analysis. The risers were die cast from magnesium-base alloy AM60A. Inspection of the failed risers and metallurgical investigations conducted...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001391
EISBN: 978-1-62708-215-0
...Abstract Abstract Several surface-mount chip resistor assemblies failed during monthly thermal shock testing and in the field. The resistor exhibited a failure mode characterized by a rise in resistance out of tolerance for the system. Representative samples from each step in the manufacturing...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001324
EISBN: 978-1-62708-215-0
... Cracking , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 , p 823 – 860 10.31399/asm.hb.v11.a0003553 The flue gas expansion joint sample was examined using a low-power binocular microscope, and it was photographed in the as-received condition. Figure 1...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001839
EISBN: 978-1-62708-241-9
... surfaces. It is imperative to mention here that exposure to chlorides species was not involved during any stage of coil processing and handling at both the mill as well as at customer’s premises. The absence of chloride species and the apparent manifestations of stepwise cracking in the coil samples...
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
...Abstract Abstract Investigation of alleged corrosion damage to hot-rolled steel during transit requires metallurgical, chemical, and corrosion knowledge. Familiarity with non-destructive techniques and sampling procedures is necessary. A complete record of shipment history is also required...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... associated with the base ABS resin. Fig. 17 Micrograph showing the included material within the handle. 24× Fig. 18 The FTIR spectrum obtained on the included particle, characteristic of polybutadiene Fig. 19 The DSC thermogram representing the reference clip material...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001662
EISBN: 978-1-62708-236-5
... testing. Considerable argument ensued about whether the cracking observed was due to poor welding during fabrication, or through abuse during handling on site. An SEM examination of the fractures revealed high cycle, low amplitude fatigue, and the problem was traced to vibration during road transport...