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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
... examined. Both samples were subjected to accelerated wear tests in a laboratory type pin-on-disk apparatus. During the tests, the bearing materials acted as pins, which were pressed against a rotating cast iron disk. The wear behaviors of both bearing materials were studied using weight loss measurement...
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Published: 01 June 2019
Fig. 3 Laboratory tensile failure of single steel filament from a 7 × 7 steel cable. Magnification 120 and 600 times. More
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Published: 01 June 2019
Fig. 4 Laboratory ductile torsion failure reveals a flat, transverse break having smooth shear surface and microvoid formation. Magnification 510 (left) and 485 times (right). More
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Published: 01 June 2019
Fig. 5 Laboratory brittle torsion failure shows longitudinal, or axial, crack growth. Magnification 55 times. More
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Published: 01 June 2019
Fig. 7 Laboratory reversed-bending fatigue failure showing a flat, fibrous, transverse fatigue fracture surface containing many secondary cracks, a transverse ductile fracture surface characterized by microvoid coalescence, and a longitudinal overload fracture surface hainvg a shear lip More
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Published: 01 June 2019
Fig. 8 Laboratory reversed-bending fatigue failure displays fatigue and overload fracture surfaces. Magnification 120 times. More
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Published: 01 June 2019
Fig. 2 The wear rates of the bearing samples in laboratory tests as functions of sliding distance (normal load: 15 N; sliding velocity: 1.67 m s −1 ) More
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Published: 01 December 1992
Fig. 6 Results of laboratory hot corrosion (cyclic) tests on HH steel coupons for 100h. (a) and (b) Coupons corroded undersulfate and sulfate-chloride loading, respectively (c) and (d) Corrosion morphology undersulfate and sulfate-chloride loading, respectively. More
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Published: 01 December 1992
Fig. 1 Laboratory-fatigue-tested cross member sample 1, showing cracking progression from internal fillet-welded diaphragm through channel side wall at location indicated by arrow. More
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Published: 01 December 1992
Fig. 4 Scanning electron micrograph of the laboratory-induced fracture. Dimples are characteristic of microvoid coalescence, a ductile form of fracture. More
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Published: 01 December 2019
Fig. 5 ASB tested in laboratory air ( a ) intergranular fracture, ( b ) intergranular fracture showing slip band activity (HTP-8) More
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Published: 01 December 2019
Fig. 6 Polished cross section of ASB specimen tested in laboratory air (HTP-2) showing bifurcated out-of-plane crack growth of after some amount of in-plane MVC fracture More
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Published: 01 December 2019
Fig. 11 NAB RSL fracture surfaces in a laboratory air (MVC), b seawater (MVC), and c seawater + ammonia (IG). Fatigue precrack is located at bottom More
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Published: 01 December 2019
Fig. 19 SEM image of a cable stop intentionally overloaded in the laboratory More
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Published: 01 December 2019
Fig. 4 Fracture surface of a laboratory produced fracture showing dimpled rupture More
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Published: 01 December 2019
Fig. 5 External view of failed specimen as received in laboratory More
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Published: 01 December 2019
Fig. 9 Scanning electron microfractograph of crack forced open in laboratory (see Fig. 7 ). Evidence of liquation cracking. Formerly molten low-melting grain boundary phases bridging between grains More
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Published: 01 December 2019
Fig. 10 Scanning electron microfractograph of crack forced open in laboratory (see Fig. 7 ). Fracture surface was etched for 2 min with “V2A etchant” at 80 °C. Evidence of formerly molten low-melting eutectic phases, probably a carbide eutectic, on grain boundaries ( arrows ) More
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Published: 01 December 1993
Fig. 12 Comparison of a laboratory H 2 S stress-corrosion failure (left) with a broken bolt removed from an engine (right). Test conditions were high clamping load and moist H 2 S-containing atmosphere. Similarity of fracture surfaces is evident. Arrows indicate origin regions. 1.0× More
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Published: 01 December 1993
Fig. 2 Secondary crack after it was fractured open in the laboratory. More