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Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001120
EISBN: 978-1-62708-214-3
... with striations characteristic of fatigue. Chemical Analysis/Identification A quantitative chemical analysis was conducted on the segment. The composition is shown in Table 1 . Based on the chemical analysis, the die complied with the chemical requirements for ASTM A681-89 H13 tool steel (see Table 1...
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Published: 01 January 2002
Fig. 10 Retrieved screw of cast Co-Cr-Mo alloy (type ASTM F75). (a) Defective screw threads from casting deficiencies. (b) Longitudinal section through threads showing porosity. 15×. (c) Enlarged thread of section shown in (b) with gas holes, segregation of primary phases, and dissolved oxides More
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Published: 01 January 2002
Fig. 40 Stuffing box sand cast from ASTM A 536, grade 60-45-10, ductile iron. (a) Configuration and dimensions (given in inches). (b) Micrograph showing the structure consisting of graphite nodules in a ferritic matrix with remnants of a pearlite network. Etched with nital. 100× More
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Published: 01 January 2002
Fig. 50 ASTM A 356, grade 6 (1.25%Cr-0.5%Mo), cast steel turbine casing that failed by cracking. (a) Segment removed from the casing, showing the fracture surface at right. A large porosity defect can be seen at the upper right corner, near the broken-open tapped hole. (b) to (e) Transmission More
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Published: 01 January 2002
Fig. 81 Comparison of ASTM 6 to 9 grain size microstructures. 100×; nital etch. Source: Ref 30 More
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Published: 01 January 2002
Fig. 11 Failed brine-heater shell of ASTM A285, grade C, carbon steel. The shell fractured at welded joints because of overstress during normal operation. Dimensions given in inches More
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Published: 01 January 2002
Fig. 15 Titanium heat-exchanger tube (ASTM B337, grade 2) that became embrittled and failed because of absorption of hydrogen and oxygen at elevated temperatures. (a) Section of the titanium tube that flattened as a result of test per ASTM B 337; the first crack was longitudinal along the top More
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Published: 01 January 2002
Fig. 3 Return bend made of ASTM A213, grade T11, ferritic steel that ruptured because it contained a large number of inclusions. (a) Overall view of the return bend showing rupture. (b) Micrograph of an unetched specimen showing high concentration of inclusions. 400×. (c) Micrograph More
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Published: 01 January 2002
Fig. 15 Cracks in pressure vessel made of ASTM A515 carbon steel lined with type 405 stainless steel. Failure occurred at plug welds because of dilution of weld metal. (a) Micrograph of specimen through weld area etched in acid cupric chloride showing ASTM A515 carbon steel (top), interface More
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Published: 01 January 2002
Fig. 25 Vessel made of ASTM A204, grade C, steel that failed as the result of hydrogen embrittlement. (a) Portion of tank; Detail A shows locations of cracks, at welds joining shell to lower head. Dimensions given in inches. (b) Schematic illustration of the weld area showing locations More
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Published: 01 January 2002
Fig. 7 Retrieved screw of cast cobalt-chromium.molybdenum alloy (type ASTM F75). (a) Defective screw threads from casting deficiencies. (b) Longitudinal section through threads showing porosity. 15×. (c) Enlarged thread of section shown in (b) with gas holes, segregation of primary phases More
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Published: 01 January 2002
Fig. 25 Fatigue-fracture structures on wrought type ASTM F563 cobalt-alloy test specimens that fatigued in air. (a) Very fine fatigue striations are superimposed on crystallographically oriented fracture structures. 2480×. (b) Crystallographically oriented fracture morphology showing twin More
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Published: 01 January 2002
Fig. 33 Broken hip prosthesis of cast type ASTM F75 cobalt-chromium-molybdenum alloy. (a) Radiograph of total hip prosthesis. Circular wire marks acetabulum component made from plastics. Arrows (from top to bottom) indicate the area where the prosthesis stem is loosening at the collar, a stem More
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Published: 01 January 2002
Fig. 1 SEM images of (a) IG fracture in ion-nitrided layer of ductile iron (ASTM 80-55-06), (b) transgranular fracture by cleavage in ductile iron (ASTM 80-55-06), and (c) ductile fracture with equiaxed dimples from microvoid coalescence around graphite nodules in a ductile iron (ASTM 65-40-10 More
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Published: 01 January 2002
Fig. 10 Room-temperature fatigue-crack-growth behavior of ASTM grade A293 steel. Levels of R represent spectrum of typical in-service load history. More
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Published: 01 January 2002
Fig. 9 Section of ASTM A 106 carbon steel pipe with wall severely damaged by hydrogen attack. The pipe failed after 15 months of service in hydrogen-rich gas at 34.5 MPa (5000 psig) and 320 °C (610 °F). (a) Overall view of failed pipe section. (b) Microstructure of hydrogen-attacked pipe near More
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Published: 01 January 2002
Fig. 21 Nital-etched specimen of ASTM A 245 carbon steel. Micrograph shows SCC that occurred in a concentrated solution of ammonium nitrate. 100× More
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Published: 01 June 2019
Fig. 1 Nital-etched specimen of ASTM A 245 carbon steel. Micrograph shows SCC that occurred in a concentrated solution of ammonium nitrate. 100× More
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Published: 01 June 2019
Fig. 1 ASTM A 356, grade 6 (1.25%Cr-0.5%Mo), cast steel turbine casing that failed by cracking. (a) Segment removed from the casing, showing the fracture surface at right. A large porosity defect can be seen at the upper right corner, near the broken-open tapped hole. (b) to (e) Transmission More
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Published: 01 June 2019
Fig. 6 Autogenous weld microstructure, ASTM A-268, Grade 430 tubing; light phase—ferrite, dark phase—martensite, Vilella's etch, (a) 50× and (b) 500× 11 More