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roughness

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Published: 01 January 2002
Fig. 12 Dependence of profile roughness parameter ( R L ) on ruler length η. (a) Schematic illustration of the experimental trend of dependence of profile roughness parameter on the ruler length η. (b) Plot of R L (η) versus η for fracture profile from the tensile fracture surface of AISI More
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Published: 01 January 2002
Fig. 14 Quantitative correlation between the roughness parameter, R S , and stress-intensity factor range ΔK for fatigue specimens of two cast irons. (a) D4018 cast iron. (b) D5506 cast iron. Source: Ref 12 , 88 More
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Published: 01 January 2002
Fig. 3 Change in surface roughness due to crack propagation. Fracture surface roughness increases with distance of propagation, crack propagation rate, and decreased strength level. This component failed in fatigue. Crack initiation was on a longitudinal plane visible at the top in a surface More
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Published: 01 January 2002
Fig. 5 Correction factors for surface roughness ( K s ), type of loading ( K 1 ), and part diameter ( K d ) for fatigue life of steel parts. See text. More
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Published: 01 January 2002
Fig. 31 Changes in surface roughness as a function of the number of fretting cycles for metal-to-metal contact. (a) As received. (b) 10 3 cycle. (c) 5 × 10 4 cycles. (d) 3 × 10 5 cycles More
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Published: 15 January 2021
Fig. 4 Change in surface roughness due to crack propagation. Fracture surface roughness increases with distance of propagation, crack propagation rate, and decreased strength level. This component failed in fatigue. Crack initiation was on a longitudinal plane visible at the top in a surface More
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Published: 01 June 2019
Fig. 5 Right — Surface roughness associated with origin of fatigue crack failure of some type 302 springs. More
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Published: 30 August 2021
Fig. 9 Illustration of surface texture: roughness, waviness, lay, and flaws. Source: Ref 13 . Reprinted from ANSI/ASME B46.1-1985, by permission of The American Society of Mechanical Engineers. All rights reserved More
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Published: 01 January 2002
Fig. 17 AISI M2 roughing tool that cracked just after heat treatment. (a) Cracks accentuated with magnetic particles. (b) Microstructural examination revealed a badly overaustenitized condition with a heavy grain-boundary carbide film, coarse plate martensite, and unstable retained austenite More
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Published: 01 January 2002
Fig. 30(a) Moil point made of AISI W1 tool steel that exhibited a rough, scaled surface after heat treatment. The actual size of the moil point is shown at left. An enlarged view (3×) at the surface condition, which resulted in erratic surface hardness, is shown at right. See also Fig. 30(b) . More
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Published: 01 January 2002
Fig. 25 Machining flaw as fracture origin in glass. Rough surface is the bottom of a groove cut by a diamond saw. SEM; picture width ∼200 μm. Source: Ref 9 More
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Published: 01 June 2019
Fig. 2 Structure of a sliver, etch: Nital. a). View. 100× Top (rough and spongy): metal center (fissured): alloy bottom (etched): steel. Structure of a sliver, etch: Nital. b). Steel structure. 500× Structure of a sliver, etch: Nital. c). Metal structure. 500× More
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Published: 15 January 2021
Fig. 35 Centrifugal pump shaft (Example 21). (a) Image of the rough pump shaft fracture surface. (b) Electron image showing intergranular fracture surface. Original magnification: 274×. (c) Shaft cross section showing branching intergranular cracking of brittle fracture. Original magnification More
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Published: 01 June 2019
Fig. 15 Comparative surface roughnesses at different roller feed rates More
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Published: 01 December 1993
Fig. 4 SEM micrograph of rough surface inside a failed thermowell, caused by removal of longitudinal inclusions More
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Published: 30 August 2021
Fig. 17 AISI M2 roughing tool that cracked just after heat treatment. (a) Cracks accentuated with magnetic particles. (b) Microstructural examination revealed a badly overaustenitized condition with a heavy grain-boundary carbide film, coarse plate martensite, and unstable retained austenite More
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Published: 30 August 2021
Fig. 30 (a) Moil point made of AISI W1 tool steel that exhibited a rough, scaled surface after heat treatment. The actual size of the moil point is shown at left. An enlarged view (3×) at the surface condition, which resulted in erratic surface hardness, is shown at right. (b) Cold-etched (10 More
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Published: 30 August 2021
Fig. 41 Burned-off journal stub. The short, rough stub indicates high heat over a short time period and is associated with an inner cone failure More
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Published: 30 August 2021
Fig. 19 Rough surface on a Ti-6Al-4V powder-bed-fusion-processed cylinder More
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Published: 30 August 2021
Fig. 16 (a) Image of Monel shaft fracture location (left). The relatively rough fracture was through a threaded region with an abrupt change in section thickness. (b) Oblique view of the relatively rough fracture surface of the centrifugal pump shaft. (c) All regions of the fracture surface More