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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001682
EISBN: 978-1-62708-229-7
... to the reactors systems. The restart of the production reactors included hydraulic testing of the primary and secondary cooling systems of the K-reactor. During this testing, a crack developed in a convolute of an expansion joint in the secondary cooling water system. This crack provided a path for river water...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006831
EISBN: 978-1-62708-329-4
... materials should be used What specifications are called out What nondestructive testing techniques are applicable What level of metallurgical testing should be performed What quality-assurance documentation is needed A teamwork approach between the designer and foundry (and, when possible...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... nondestructive testing techniques are applicable, what level of metallurgical testing should be performed, and, finally, what quality-assurance documentation is needed. A teamwork approach between the designer and foundry (and, where possible, the ultimate user) is the best (and lowest-cost) method of avoiding...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006814
EISBN: 978-1-62708-329-4
... or nondestructive testing should be used to detect such cracking, and the part rejected or repaired before being placed into service. Other portions of this Volume that deal with manufacturing operations discuss this type of failure. When the first type of failure occurs (that is, when there is a manufacturing...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001657
EISBN: 978-1-62708-227-3
... gradients involves room temperature hardness testing (HV30 [1] data) at varying sampling locations. Microhardness testing may be necessary in the case of very thin components. A significant decrease in the hardness value relative to new material properties would be indicative of strength degradation...
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
... Radiographic inspection of welds or potential anomalies. Computed tomography may be used for smaller specimens or sections. Ultrasonic testing (UT) or phased-array UT to characterize cracklike flaws, if present One of the primary goals of NDE is to identify features and flaws that may be related...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
... variations in hardness can lead to premature failure and extreme difficulties during cold working or forming. In this case, one of the simplest and most effective tests for incoming material is a simple standard upset test. The details of such a test can be worked out between the supplier and the cold forger...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
... method of illumination. Figure 9 shows a view of the fracture surface of a tensile test specimen from a cast steel that has suffered embrittlement, resulting in a “rock candy” fracture. Fig. 9 Low-power light microscope view of a “rock candy” fracture in a tensile specimen taken from a cast...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
... often results in a suppression of the surface features that are desired. Flexible fiber-optic lighting is often the most appropriate method of illumination. Figure 9 shows a view of the fracture surface of a tensile test specimen from a cast steel that has suffered embrittlement, resulting in a “rock...