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operation-related failures

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430343
EISBN: 978-1-62708-253-2
... Abstract This chapter examines boiler tube failures attributed to operation-related causes. It discusses failures due to rapid start-ups, excessive load swing, excessive heat inputs, poor water chemistry control, and water-treatment methods. boiler tubes operation-related failures water...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430147
EISBN: 978-1-62708-253-2
...: Failures due to operational problems a. Rapid start-ups b. Excessive load swing Damage Mechanisms with Case Studies / 149 c. Excessive heat inputs Failures due to poor water chemistry control Water-treatment-related failures a. Conventional treatment b. All volatile treatment (AVT) 7. Lack of quality...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250019
EISBN: 978-1-62708-345-4
... Fig. 1 Schematic showing three lubrication regimes Abstract This chapter reviews the knowledge of the field of gear tribology and is intended for both gear designers and gear operators. Gear tooth failure modes are discussed with emphasis on lubrication-related failures. The chapter...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780057
EISBN: 978-1-62708-268-6
... determinations, mean times between failure, and related topics are also discussed. The discussion covers the practices observed in fault-tree analysis quantification and processes involved in calculating the probability of the top undesired event. failure rate failure rate sources fault-tree analysis...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490001
EISBN: 978-1-62708-340-9
... years have elapsed Statistics of prior failures indicate impending failure Frequency of repair renders continued operation uneconomical Calculations indicate life exhaustion Performance-based criteria Severe loss of efficiency indicating component degradation Large crack manifested...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110513
EISBN: 978-1-62708-247-1
... punching-off the lead frame, thus cracking the mold compound; also bending the pins to their final shape. Wire residue adhesion at the stitch bond capillary, thus cutting the stitch on both ends or generating severe heel cracking [8] Operationally induced thermomechanical overstress Process...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780081
EISBN: 978-1-62708-268-6
... that because the system had been operating without failure in the past, something must have changed. In some cases, this is true; in other cases, it is not. This chapter targets areas that determine if a change occurred and if the change induced the failure. This is referred to as change or “what’s different...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610001
EISBN: 978-1-62708-303-4
..., if other time-related failure modes occur concomitantly with repeated loads and interact synergistically, then the task becomes even more challenging. Inasmuch as humans always desire to use more goods and place more demands on the things we can design and produce, the challenge of fatigue is always going...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090349
EISBN: 978-1-62708-266-2
... and mitigation techniques corresponding to a wide range of issues related to stress, sensitization, and operating conditions. pipe welds stainless steel steel pipe stress-corrosion cracking welded boiling water reactor FOR OVER THIRTY YEARS, boiling water reactor (BWR) piping systems fabricated...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630xvi
EISBN: 978-1-62708-270-9
... failure. There is no universal definition for what constitutes a failure. One definition that has been developed by professional failure analysts is: Failure. (1) A general term used to imply that a part in service (a) has become completely inoperable, (b) is still operable but is incapable...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110025
EISBN: 978-1-62708-247-1
... methods and their operational principles are introduced along with case studies that will show the value of using them on board level defect analysis. advanced board level failure analysis infrared thermography magnetic current imaging non-destructive localization root cause analysis scanning...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060137
EISBN: 978-1-62708-355-3
... of judgments on these matters, and the investigator must assess new results against a background of whichever accrued data are appropriate. The same is true, to varying degrees, of most of the data relating to failure; they are accommodated within a framework of comprehension that enables useful information...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130395
EISBN: 978-1-62708-284-6
... in this regard. These are process maps and a cause-and-effect matrix. Process Maps In charting a process map, the entire manufacturing process is considered. The implicit assumption is that the cause of failure can be related to not only the final operation but also to prior operations. Every operation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110262
EISBN: 978-1-62708-247-1
..., in which those devices can emit an observably similar amount of light as the culprit device. It is important to note that not all emissions are related to defects. Emissions could also be observed during normal operation of the device, making it nearly impossible to distinguish the emissions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.t51180091
EISBN: 978-1-62708-256-3
... corrective action(s). Evaluate the effectiveness of the selected corrective action(s). The first five steps relate to steps 1 and 2 of the four-step problem-solving process discussed in Chapter 3 . The next four steps relate to steps 3 and 4 of the four-step problem-solving process. Many failure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110613
EISBN: 978-1-62708-247-1
... that knowledge in perspective and provides direction. This article reviews normal transistor operation and then relates it to electronic behavior in the presence of defects, such as bridges and opens. These electronic principles are then applied to an inexpensive CMOS failure analysis technique using a power...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130311
EISBN: 978-1-62708-284-6
... Abstract This chapter focuses on the failure aspects of tool steels. The discussion covers the classification, chemical composition, main characteristics, and several failures of tool steels and their relation to heat treatment. The tool steels covered are hot work, cold work, plastic mold...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630257
EISBN: 978-1-62708-270-9
... be used to determine whether: Design deficiencies led to the failure. The material was not adequate. Limitations on operating conditions, such as maximum load, or maximum temperature, were not followed. Fracture mechanics is a well-developed quantitative approach to the study of failures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930163
EISBN: 978-1-62708-359-1
... Abstract Depending on the operating environment and the nature of the applied loading, a structure can fail by a number of different modes, including brittle fracture, ductile fracture, plastic collapse, fatigue, creep, corrosion, and buckling. These failure modes can be broken down...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780093
EISBN: 978-1-62708-268-6
... megapixels and up) allow the area of interest to be cropped with little or no loss of detail ( Fig. 11.4 ). Dimensional Inspection and Related Approaches During the failure analysis, the failure analysis team should hypothesize many failure causes. These hypothesized causes may be present in many...