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Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006753
EISBN: 978-1-62708-295-2
... levels, followed by a discussion on the role of failure analysis and the appreciation of quality assurance and user expectations. Systematic analysis of equipment failures reveals physical root causes that fall into one of four fundamental categories: design, manufacturing/installation, service...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001315
EISBN: 978-1-62708-215-0
... 1000 h of service in sodium at 550 deg C (1020 deg F). Helium leak testing indicated that leaks had occurred at various regions of the welded joints between the convolutes in the bellows. The weld failure was attributed to poor quality assurance during fabrication, which resulted in cracklike openings...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006838
EISBN: 978-1-62708-329-4
... considerations, and quality assurance. The emphasis is on the design and metallurgical aspects for the two main types of metal AM processes: powder-bed fusion (PBF) and directed-energy deposition (DED). The article also describes the processes involved in binder jet sintering, provides information on the design...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001084
EISBN: 978-1-62708-214-3
... with casting defects increasing stress and initiating fracture. In addition, the composition and hardness of the impeller did not meet specifications. Revision of the casting process and institution of quality assurance methods were recommended. Selected References Selected References • Failures...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001611
EISBN: 978-1-62708-219-8
... completion of the weld. Additionally, members of the quality-assurance team confirmed that both flanges of the beam section were to be welded in concert to minimize the development of residual stress during cooling and the potential for damage during welding. Further, to minimize the damage from hydrogen...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001280
EISBN: 978-1-62708-215-0
... tubing column was replaced with a new one. This is a common procedure in reformer furnaces. It was also recommended that all factors shortening tube life be eliminated. This includes chemical control of the filler metal and quality assurance of the weldments, particularly through the use of good welding...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001522
EISBN: 978-1-62708-235-8
... of the part dimensions had not produced the mechanical properties required throughout the casting. The result was a major delay in the delivery schedule and quality of assured parts. At the request of the manufacturer, the Boeing Company, research scientists, and engineers in the Air Force Research...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006868
EISBN: 978-1-62708-395-9
..., the manufacturing assembly technical group, the quality assurance staff from any or all of these groups, the business development or marketing group, and so on. Each project will require a different composition for this development team. The idea is to gather the stakeholders responsible for each functional piece...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001828
EISBN: 978-1-62708-241-9
... double-discharge arrangement ( Fig. 3 ). The HT pumps are designed and manufactured to the requirements of ASME Section III sub-section NB and to quality assurance requirements of the Canadian Standards Association (CSA) Code Z 299.1 (equivalent to ISO 9001). The pump is coupled to the motor through...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001663
EISBN: 978-1-62708-236-5
... of ammunition mixed with blank cartridges will continue to remain a possibility. Of course, more dependable quality assurance steps by the vendor and user to detect the presence of a live round of ammunition in a batch of blanks is an essential control step. To this end, measures have been taken at ORNL...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003500
EISBN: 978-1-62708-180-1
... measures, significant improvements have been realized in the quality of products and systems. This requires not only an understanding of the role of failure analysis, but also an appreciation of quality assurance and user expectations. Quality and User Expectations of Products and Systems In an era...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003505
EISBN: 978-1-62708-180-1
... oral or written statements, or implication, reasonably rely on the manufacturer's express or implied assurance (including advertising material) as to the quality, condition, and merchantability of goods, and as to the safety of using them for their intended purpose and use. If the user relies...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006927
EISBN: 978-1-62708-395-9
... functional group responsible for the development or implementation of the product. This can include the processor, the materials supplier, the tooling fabricator, the quality assurance or quality control groups, the marketing group, the purchasing or strategic sourcing group, and the operations or management...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001667
EISBN: 978-1-62708-235-8
... laboratory. Any sacrifice in the quality of the microstructural information obtained is undesirable. This paper will focus on the equipment and procedures used in an on-site metallographic analysis of two gas tungsten-arc welded, large diameter, titanium alloy (Ti-6Al-4V) cylinders. In this case, a blue...
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
.... For example, laboratory analyses at SwRI have found high-temperature oxides deposited at the crack initiation site indicating a poor quality weld root. These oxides form because the metal surface that is heated to near melting temperature is exposed to air. Laboratory analysis confirms that this stress riser...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001491
EISBN: 978-1-62708-217-4
... of silica phenolic tape produced from flawed materials that went undetected by the quality control tests, which at the time, assessed tape strength properties in the warp rather than the bias direction. Once the nozzle manufacturer and its suppliers identified the problem, they changed their quality control...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006803
EISBN: 978-1-62708-329-4
... to start the sequence. It allows the analyst to reproduce the same sequence if needed (which may be required in a quality-assurance environment). A good random number generator needs to sample as uniformly as possible and have a long periodicity, which means that a large number of samples must be drawn...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001777
EISBN: 978-1-62708-241-9
... conception (geometric and material connection detailing) and in the manufacturing procedures (execution, inspection, quality control, and stress relief); Scheduling preventive inspections of the connections of the ties during the equipment’s life cycle would improve the safety and the reliability...
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
... such as polyethylene. For more complex products in which specimens are difficult to extract, the ball-and-pin impression test, ISO 4600, can be used. This is a simple quality-control test in which a series of holes of a specific diameter are drilled into the material, and oversized balls or pins of different sizes...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003502
EISBN: 978-1-62708-180-1
... of the imported strainer showed the wall thickness to be well below the minimum required by applicable American National Standards. The sales drawing (cut sheet) for the strainer indicated “ISO 9002 Quality Assurance,” yet there was no evidence of any International Organization for Standardization (ISO) 9000...