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oxide dispersion-strengthened alloys

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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.c9001845
EISBN: 978-1-62708-241-9
... Abstract Two clamps that support overhead power lines in an electrified rail system fractured within six months of being installed. The clamps are made of CuNiSi alloy, a type of precipitation-strengthening nickel-silicon bronze. To identify the root cause of failure, the rail operator led...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001031
EISBN: 978-1-62708-214-3
... on a study on the dispersion strengthening of copper-zirconium alloys by internal oxidation ( Ref 2 ), the homogeneous phase was produced by the rapid movement of the oxidation front through the material. This phenomenon reduced the time necessary for substantial zirconium diffusion away from the original...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001829
EISBN: 978-1-62708-241-9
... oxidation thermal-barrier coated superalloys spalling microstructural analysis operating time ECY768 (cobalt-base superalloy) Co-Ni-Cr-Al-Y (cobalt-nickel-chromium-aluminum-yttrium alloy) Introduction The largest use of coatings on superalloys is on components in the hot gas section...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001123
EISBN: 978-1-62708-214-3
... that the actual composition with respect to aluminum, lead, and magnesium was different from the specified alloy. Scanning electron microscopy showed intergranular failure with enhanced aluminum and segregation of lead at grain boundaries. In this type of alloy, aluminum is used for strengthening through grain...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003555
EISBN: 978-1-62708-180-1
... Abstract High temperature corrosion may occur in numerous environments and is affected by factors such as temperature, alloy or protective coating composition, time, and gas composition. This article explains a number of potential degradation processes, namely, oxidation, carburization...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003545
EISBN: 978-1-62708-180-1
... superalloys 775–925 0.45–0.60 Burner cans for gas turbine engines Oxide dispersion-strengthened nickel-base alloys 1350–1400 0.55–0.65 Constant-load bulk deformation creep curves typically (but not always) consist of three distinct stages ( Fig. 3a ). The first stage (called primary creep...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... mechanisms include: Oxidation Carburization and metal dusting Nitridation and carbonitridation Sulfidation Chloridation Oxidation Most metals and alloys are oxidized on exposure to temperatures higher than 300 °C (570 °F) in environments containing more than 1 vol% O 2 . Alloys...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... 850–950 0.45–0.55 Gas turbine blades Nickel-base superalloys 775–925 0.45–0.60 Burner cans for gas turbine engines Oxide-dispersion-strengthened nickel-base alloys 1350–1400 0.55–0.65 The creep behavior of polymeric materials is more complex, because most plastics respond as true...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006824
EISBN: 978-1-62708-329-4
... metal droplets deposited on a surface at high velocity; similar structures are intentionally formed by thermal spray coating. Energy-dispersive x-ray spectroscopy analysis of the metallic portions of the deposit revealed a chemical composition consistent with that of the first-stage blade alloy IN-700...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006828
EISBN: 978-1-62708-329-4
... dissimilar metals Ability to join porous metal components Ability to fabricate large assemblies in a stress-free condition Ability to preserve special metallurgical characteristics of metals Ability to join fiber- and dispersion-strengthened composites Capability for precision production...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001600
EISBN: 978-1-62708-217-4
... a factor of the prior solutionizing temperature. Other microstructural features such as size of the strengthening precipitates, width of the precipitate free zone, and the size and distribution of the coarse (Al 7 Cu 2 Fe, Al-Si oxide) particles were comparable. Shot Peening Analysis Note 4...
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
... the intended function is decreased. The article addresses factors that may cause failures in castings for each metal type, starting with gray iron and progressing to ductile iron, steel, aluminum, and copper-base alloys. It describes the general root causes of failure attributed to the casting material...
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
... • Multiple intergranular cracks • Voids formed on grain boundaries or wedge-shaped cracks at grain triple points • Reaction scales or internal precipitation • Some cold flow in last stages of failure Contributing factors • Load exceeded the strength of the part • Check for proper alloy and processing...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001530
EISBN: 978-1-62708-225-9
...), and energy dispersive x-ray spectroscopy (EDS). Wear rate of the sample were calculated from weight loss measurements. 3. Brief History of Failure A plastic (PVC) sheet manufacturing company near Dhaka, Bangladesh reported that a copper alloy bearing failed catastrophically due to excessive wear...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001758
EISBN: 978-1-62708-241-9
... Abstract This article describes the visual, fractographic, and metallographic evidence typically encountered when analyzing stress rupture of turbine airfoils. Stress-rupture fractures are generally heavily oxidized, tend to be rough in texture, and are primarily intergranular...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... triple points• Reaction scales or internal precipitation• Some cold flow in last stages of failure Contributing factors • Load exceeded the strength of the part• Check for proper alloy and processing by hardness check or destructive testing, chemical analysis• Loading direction may show failure...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006794
EISBN: 978-1-62708-295-2
... to form a compact oxide film, which can stop the corrosion reaction, leading to high corrosion resistance. Metals and alloys having such capability are known as passive materials, which show apparent noblity in specific solutions. Resistance to wear is largely determined by hardness according...
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
... combinations will result in SCC; the available information is experiential and has been collected from laboratory data and industrial experience over the past century. Metals/alloys susceptible to SCC develop a protective film, such as an oxide or hydroxide film. Breaks or points of weakness in the protective...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001839
EISBN: 978-1-62708-241-9
... with the fluxes and as an impurity in alloy additions and metallurgical coke. The lime, or calcium oxide (CaO), is an important addition during steelmaking operations, especially during ladle metallurgy to adjust slag chemistry, to facilitate inclusion removal and for desulphurization of steels. Due to the moist...
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