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Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001820
EISBN: 978-1-62708-241-9
...Abstract Abstract A group of control valves that regulate production in a field of sour gas wellheads performed satisfactorily for three years before pits and cracks were detected during an inspection. One of the valves was examined using chemical and microstructural analysis to determine...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001558
EISBN: 978-1-62708-217-4
...Abstract Abstract A liquid hydrogen main fuel control valve for a rocket engine failed by fracture of the Ti-5Al-2.5Sn body during the last of a series of static engine test firings. Fractographic, metallurgical, and stress analyses determined that a combination of fatigue and unexpected...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
... dealuminification denickelification desiliconification dezincification galvanic corrosion graphitic corrosion intergranular corrosion pitting corrosion selective leaching uniform corrosion velocity-affected corrosion CORROSION is the electrochemical reaction of a material and its environment...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001812
EISBN: 978-1-62708-241-9
...) Introduction Mechanisms and Rate-Controlling Processes for LME and SMIE Evidence for LME and SMIE Failure of an Aluminium-Alloy Inlet-Nozzle in a Natural-Gas Plant Failure of a Brass Valve in an Aircraft Engine Oil-Cooler Failure of a Screw in a Helicopter Fuel-Control Unit...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001798
EISBN: 978-1-62708-241-9
...Abstract Abstract The crosslinked epoxy resin encapsulant protecting an electromagnetic valve coil failed during long-term storage and was examined to determine the cause. The investigation included fault-tree analysis, FTIR and EDX spectroscopy, and differential scanning calorimetry...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001071
EISBN: 978-1-62708-214-3
.... An important component in the control of these safety requirements are the valves that are used to regulate flow. Cast iron has been shown to be an economical and effective material to handle high concentrations of H 2 SO 4 for service in concentrations of 93 to 99% at temperatures up to 120 °C (250 °F...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... to aggressive with respect to SCC. Early investigations into these failures revealed that the composition of the water being used in the boilers created the caustic environment needed for SCC to occur. At that time, chemistry of the water used in boilers was not controlled to the same degree as it is today...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
...Abstract Abstract Corrosion is the electrochemical reaction of a material and its environment. This article addresses those forms of corrosion that contribute directly to the failure of metal parts or that render them susceptible to failure by some other mechanism. Various forms of corrosion...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
..., causing loss of flow control of the hydraulic oil. The rotating spool in the valve was made of 8620 steel and was gas carburized. The cylinder in which the spool fitted was made of 1117 steel, also gas carburized. Visual examination disclosed that the side-rail extrusions, which had the I-beam shape...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003573
EISBN: 978-1-62708-180-1
.... For example, the immediate cause of distortion (bending) of an automobile-engine valve stem is contact of the valve head with the piston, but the failure analyst must go beyond this immediate cause in order to recommend proper corrective measures. The valve may have stuck open because of faulty lubrication...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001727
EISBN: 978-1-62708-225-9
... failures is complicated because several mechanisms operate simultaneously or sequentially. For example, a structural component in a space launch vehicle can be simultaneously subjected to stress, a marine environment, and complex fatigue loads and frequencies. A series of bolts on thrust control valves...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003503
EISBN: 978-1-62708-180-1
... heater takes cold water and gas as inputs and produces hot water as an output; flue gases and heat leakage are also produced as waste outputs. The water temperature is regulated by the controller opening and closing the main gas valve (labeled stop valve) when the temperature of the water in the tank...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006811
EISBN: 978-1-62708-329-4
... , 1969 , p 711 – 715 10.1001/archsurg.1969.01340180035006 47. Ross J. Jr. and E. Braunwald, Aortic Stenosis , Circulation , Vol 38 , 1968 , p 61 – 67 10.1161/01.CIR.38.1S5.V-61 48. Matthews A.M. , The Development of the Starr-Edwards Heart Valve , Texas Heart Inst...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001064
EISBN: 978-1-62708-214-3
... to force water through the pipes to a valve that controls the fluid pressure and flow. Drops in pressure over a set period of time, as well as visual inspection, can reveal unsound joints and welds. Locally available water is commonly used for hydrotesting. Subsequently, the water is often resident...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
... sample indicating ~80% rubber and ~20% filler Abstract Abstract Corrosion is the deterioration of a material by a reaction of that material with its environment. The realization that corrosion control can be profitable has been acknowledged repeatedly by industry, typically following costly...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
... by a reaction with its environment. In a study by the U.S. Federal Highway Administration in cooperation with the National Association of Corrosion Engineers (NACE), it was estimated that the annual cost of corrosion was between $121 and $138 billion in 1998 in the United States. These costs included cost...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001816
EISBN: 978-1-62708-180-1
... tubes are not chosen for thermal conductivity but for strength, especially creep or stress-rupture strength. Therefore, the temperature gradient through the steel is not controlled by design but accepted as a consequence of material selection. Third, at the fluid interface with the inside-diameter...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006802
EISBN: 978-1-62708-329-4
... for Failure Control , Fatigue and Fracture , Vol 19 , ASM Handbook , ASM International , 1996 , p 460 10.31399/asm.hb.v19.a0002386 24. Kaplan M.P. , and Wolff T.A. , Life Extension and Damage Tolerance of Aircraft , Fatigue and Fracture , Vol 19 , ASM Handbook , ASM International...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006793
EISBN: 978-1-62708-295-2
... situations, the bodies tend to be large and contact in a well-defined location in a controlled way, unlike erosion where the eroding particles are small and interact randomly with the target surface. This article describes some generic features and modes of impact wear of metals, ceramics, and polymers...
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
...Abstract Abstract A heat transport pump in a heavy water reactor failed (exhibiting excessive vibration) during a restart following a brief interruption in coolant flow due to a faulty valve. The pump had developed a large crack across the entire length of a bearing journal. An investigation...