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radiation susceptibility

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Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006871
EISBN: 978-1-62708-395-9
... a general overview of outdoor weather aging factors, their effects on plastic materials, and the accelerated test methods that can be used to estimate the behavior of a plastic component during actual use. This article was revised from Characterization of Weathering and Radiation Susceptibility...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001510
EISBN: 978-1-62708-217-4
... be defined as the spontaneous failure of a metal resulting from the combined effects of a corrosive environment and the effective component of tensile stress acting on the structure. However, because of the orientation dependence in aluminum, it is the residual stress occurring in the most susceptible...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001691
EISBN: 978-1-62708-234-1
... subsequently remedied after considerable investigations. Extrusions Synchroton radiation Vacuum chambers Water connections 3003 UNS A93003 6061 UNS A96061 Pitting corrosion Introduction The storage ring vacuum chamber is fabricated from 6061 aluminum ( Fig. 1 ). The water cooling holes...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001560
EISBN: 978-1-62708-217-4
... may have occurred. A study was made for stress-corrosion cracking susceptibility of 4340 steel in a paste made of the residues collected from used breech chambers. The constant extension rate test (CERT) technique was employed and SCC susceptibility was demonstrated. The residues, which contained both...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001536
EISBN: 978-1-62708-229-7
... feature of components from nuclear power plants that sets them apart from other failed components is the likely presence of radioactive contamination. In virtually all cases, the failed components come from areas of the plant that receive no significant neutron radiation from the reactor core, so no bulk...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091640
EISBN: 978-1-62708-229-7
..., and the aging treatment had been at too low of a temperature. Recommendations included the following heat treatments: after forging, solution heat treat at 1040 deg C (1900 deg F) for one hour, then oil quench; to avoid susceptibility to SCC, age at 595 deg C (1100 deg F) for four hours, then air cool...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001746
EISBN: 978-1-62708-217-4
... out radiating river markings. Magnification 6.3 times. Fig. 3 Corrosion pitting and cracking appeared under the green (G) epoxy primer and gray paint (P) near the start of fracture of Fig. 2 . Magnification 420 times. Fig. 4 illustrates eyebolts which broke when used to lift...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001051
EISBN: 978-1-62708-214-3
... was considered to be caused by a low-cycle corrosion fatigue phenomenon, the A302 material was also susceptible to transgranular stress-corrosion cracking (SCC) in the PAT environment if copper was present in solution. The steam generators were constructed from ASTM A302 grade B material. The closure welds...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006938
EISBN: 978-1-62708-395-9
.../environmental degradation. Polymers are well known to be susceptible to chemical attack from a variety of sources, although the vulnerabilities depend on the specific type and formulation of the polymer. While occasionally a chemical exposure is benign, it can also manifest as a consequential change in material...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006909
EISBN: 978-1-62708-395-9
... environmental factors, such as temperature, humidity, pressure, weathering, liquid chemicals (i.e., alkalis and acids), ionizing radiation, and biological degradation, along with the combined effects of mechanical stress, temperature, and moisture (including environmental stress corrosion). The article also...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003550
EISBN: 978-1-62708-180-1
... on plastics is to actually degrade the polymer; that is, to break down the polymer chains into lower molecular weight compounds that no longer have the desirable strength or toughness properties of the original. Certain polymer types are more susceptible than others to specific degradation mechanisms, but all...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... the SCC, which occurs due to welding, metalworking process, and stress concentration, including options for investigation and corrective measures. It describes the sources of stresses in service and the effect of composition and metal structure on the susceptibility of SCC. The article provides...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006917
EISBN: 978-1-62708-395-9
... infrared spectral comparison illustrating the identification of a trimellitate ester on the fracture surface of a polycarbonate part Fig. 17 Scanning electron micrographs showing a series of radiating band features corresponding to opened craze remnants Fig. 1 Generic molecular...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006822
EISBN: 978-1-62708-329-4
... are susceptible to hydrogen cracking when corrosion or H 2 S is also present. A case study related to hydrogen cracking and a hard spot is presented later in this article. Long-Seam Flaws The following are descriptions and case studies of various long-seam flaws that occur during manufacturing. Lap...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001703
EISBN: 978-1-62708-227-3
... ) they are susceptible to localized corrosion in chloride environments, and thus are not recommended for use in marine applications ( 3 ). The stud hardness was 98 Rockwell B. The standard specification for stainless steel metric studs is ASTM F738M, and this particular sample would be designated Property Class F1-60...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003540
EISBN: 978-1-62708-180-1
... include hydrogen embrittlement, liquid-metal embrittlement, solid-metal embrittlement, oxidation or reduction potentially in the grain boundaries, radiation embrittlement, and SCC. Because the appearance of IG fracture is relatively easy to recognize, and because the causes are fairly limited...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001594
EISBN: 978-1-62708-229-7
... fittings contributes to their susceptibility to high-cycle fatigue failure. The annular gap formed when the pipe is inserted into the fitting creates an unavoidable stress riser at the weld root. This annular gap also forms a crevice (or slot) where stagnant, potentially corrosive fluid comes in contact...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006867
EISBN: 978-1-62708-395-9
... the resin is heated in the manufacturing equipment. It is often the case with plastics that are susceptible to hydrolytic degradation that a reduced polymer molecular weight is discovered during failure analysis. The challenge for the analyst then becomes deciding whether the degradation occurred during...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... diffraction Penetrating rays of x-ray, gamma rays, or neutrons passing through or reflecting from test object cast shadows or patterns on film or digital imaging plates Manufacturing, weld inspection, finding objects in closed containments, metrology of enclosed objects, thickness Hazardous radiation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2