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spherical carbides

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001245
EISBN: 978-1-62708-232-7
... consisted of very fine acicular martensite with fine spherical carbide inclusions ( Fig. 6 ) up to a depth of 5–6 mm. The martensite indicated no signs of tempering treatment. Adjoining the purely martensitic peripheral zone was a transition zone with increasing amount of bainite and pearlite from...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001003
EISBN: 978-1-62708-227-3
... is the typical ferrite plus patches of fine, rather spherical carbides which one commonly sees in low carbon steels. The microstructure of the remaining metal under the severely attacked areas, however, is quite different. A typical example is shown in Fig. 2 . Fig. 2 Microstructure of center of attacked...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001191
EISBN: 978-1-62708-225-9
...Abstract Abstract Inner rings of spherical roller bearings out of full hardening ball bearing steel 100 CrMn 6 (Fe-1C-1.5Cr-1.1Mn, Material No. 1.3520) failed in service. Due to the cracks, parts from the middle flange broke or the rings failed in radial direction completely. All the cracks...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001164
EISBN: 978-1-62708-227-3
... to contain sulfur, mainly from the flue gas, and calcium and chlorine, mainly from the sea water. The gray corrosion product was interspersed with rust and a black carbonaceous deposit. Corrosion pitting and poor weld penetration, with carbide precipitation and heavy etching at grain boundaries, indicated...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006795
EISBN: 978-1-62708-295-2
... material at approximately 20 to 30° is not universally observed and is dependent on factors such as particle shape and fragmentation ( Ref 51 – 53 ). When ductile materials are impacted by spherical particles that do not fragment, the maximum erosion rate can occur at 90°, illustrating that material...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003564
EISBN: 978-1-62708-180-1
... , p 981 – 1012 5. Chaudhri M. and Phillips M.A. , Quasi-Static Indentation Cracking of Thermally Tempered Soda-Lime Glass with Spherical and Vickers Indenters , Philos. Mag. A , Vol 62 , 1990 , p 1 – 27 10.1080/01418619008244333 6. Ichikawa M. , Takamatsu T...
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
...; generally spherical and often coated with oxide Cold shot G 113 Spherical metallic inclusions inside blowholes or other cavities or in surface depressions (see A 311). Composition approximates that of the alloy cast but nearer to that of a eutectic Internal sweating, phosphide sweat G 120...
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
... at carbides and other microconstituents, especially in single crystal castings that do not possess grain boundaries. gas turbine engine components creep deformation overheating nickel-base superalloy interdendritic stress-rupture fracture stress-rupture testing stress-rupture life Cast nickel...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003568
EISBN: 978-1-62708-180-1
... at approximately 20 to 30° is not universally observed and is dependent on factors such as particle shape and fragmentation ( Ref 46 , 47 , 48 ). When ductile materials are impacted by spherical particles that do not fragment, the maximum erosion rate can occur at 90°. Erosion of a given material as a function...
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
... assessment purposes. Metallographic samples are first examined in the unetched condition to study the distribution of primary carbides, sulphocarbides, inclusions and various forms of casting defects. Coated components are also best suited for an unetched microstructural examination, since coating...
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
... chemical composition as the base metal; generally spherical and often coated with oxide Cold shot G 113 Spherical metallic inclusions inside blowholes or other cavities or in surface depressions. Internal sweating, phosphide sweat Composition approximates that of the alloy cast but nearer...
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
... of stress-rupture stress versus rupture life for nickel-base alloy U-700 at 815 °C (1500 °F). The increasing slope of the curve to the right of the sigma break is caused by sigma-phase formation. Fig. 13 Grain-boundary carbide films in a Waspaloy forging. The films substantially reduced stress...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
... track wheel that cracked due to the presence of an extensive grain-boundary carbide film. Specimen etched with nital Fig. 33 Light micrograph of a melted region found on an AISI D2 powder metallurgy die after heat treatment. Specimen etched with Marble's reagent Abstract Abstract...
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
... creep deformation and intergranular cracking in a jet-engine turbine blade. Courtesy of J. Schijve Fig. 10 Power-law dependence of creep crack growth with K in less ductile materials. Source: Ref 19 Fig. 16 Grain-boundary carbide films in a Waspaloy forging. The films...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003546
EISBN: 978-1-62708-180-1
... Small spherical γ′ precipitates to provide strength Large grains to reduce the intrinsic creep rate by reducing the grain-boundary area and therefore the grain-boundary sliding Grain-boundary carbides (in polycrystalline materials) to reduce the creep rate by inhibiting grain-boundary sliding...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001831
EISBN: 978-1-62708-241-9
.../asm.hb.v18.a0006358 Rolling-element bearings with diverse variants including ball, needle, cylindrical roller, spherical roller, tapered roller, etc. are the most widely used type of bearings because of their excellent tradeoff between size, cost, and performance [ 1 ]. Therein, the cylindrical...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001810
EISBN: 978-1-62708-180-1
... bearings are cylindrical, needle, tapered, and spherical. Cylindrical-roller bearings have rollers with approximate length-to-diameter ratios of 1:1 to 3:1. Needle-roller bearings have cylindrical rollers (needles) with greater length-to-diameter ratios (approximately 4:1 to 8:1). The rolling elements...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
.../BF00603582 162. Arai T. and Tsuchiya Y. , Role of Carbides and Nitrides in Anti-Galling Property of Die Materials and Surface Coatings , Metal Transfer and Galling in Metallic Systems , Merchant H.D. and Bhansali K.J. , Ed., The Metallurgical Society , Warrendale, PA...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006807
EISBN: 978-1-62708-329-4
... , ε c , t , T , ω 1 , ω 2 , … ) The internal variables can be tied to specific material mechanisms that affect the creep rate, such as carbide precipitation, agglomeration of carbides and other precipitates, grain-boundary sliding, void generation and growth, and so...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006781
EISBN: 978-1-62708-295-2
..., Oxidation, and Diffusion of Elemental Species TMF Life Model with Carbide Precipitation Cracking Equipment Control Logic Component Simulation Testing Stress Analysis of the Casing Fracture Mechanics Analysis Case Study: Prediction of Residual Life in a Turbine Casing. Estimation...