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Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
..., films, nonmetals, composites, assemblies Acoustic emission (AE) Multiple distributed sensors detect and triangulate AE stress-wave source in response to mechanical or thermal stress. Corrosion, stress-corrosion cracking, weld cracking, creep and fatigue cracking Sensitive to noise and vibration...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0090445
EISBN: 978-1-62708-222-8
... was that the appliance covers failed via brittle fracture associated with stress overload. The failures, which occurred under normal assembly conditions, were attributed to embrittlement of the molded parts, due to contamination of the ABS resin with a high level of PBT. The source of the PBT resin was not positively...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001335
EISBN: 978-1-62708-215-0
...Abstract Abstract The causes of cracking of an as-drawn 90-10 cupronickel tube during mechanical working were investigated to determine the source of embrittlement. Embrittlement was sporadic, but when present was typically noted after the first process anneal. Microstructural and chemical...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c0089567
EISBN: 978-1-62708-230-3
... a potential source of crack initiation. The combination of low material strength and a casting defect was a potential source of unexpected fracture during service, because the component was under pressure from steam. Recommendations included removing other dryer heads exhibiting similar discontinuities...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0090460
EISBN: 978-1-62708-234-1
... as a result of molecular degradation caused by the service conditions. Specifically, the part material had undergone severe chemical attack, including oxidation and hydrolysis, through contact with silver chloride. The source of the silver chloride was not established, but one potential source...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001691
EISBN: 978-1-62708-234-1
...Abstract Abstract The Advanced Photon Source (APS) is a state-of-the-art synchrotron light source. The storage ring vacuum chamber is fabricated from 6061 extruded aluminum. Water connections to the vacuum chambers that were fabricated from 3003 aluminum had developed water leaks, which were...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003539
EISBN: 978-1-62708-180-1
... SEM view of fatigue striations in medium-density polyethylene, laboratory tested at 0.5 Hz with maximum stress 30% of the yield strength. Crack growth is upward in this view. Original magnification 200×. Source: Ref 4 Fig. 50 Features observed on fatigue area of polymethyl methacrylate...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003510
EISBN: 978-1-62708-180-1
... that occur during heat treating and describes the metallurgical sources of stress and distortion during heating and cooling. The article summarizes the effect of materials and the quench-process design on distortion and cracking and details the effect of cooling characteristics on residual stress...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001548
EISBN: 978-1-62708-219-8
... possibilities were considered: From the adhesive used to bond the plywood to the aluminum. From compounds naturally occurring in plywood. From compounds added to the plywood from an external source. The technical expert up to this point was by training a materials engineer, with a strong...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006776
EISBN: 978-1-62708-295-2
... initiation occurs for stress curves 3 and 4, while surface initiation is expected for higher-stress levels 1 and 2. Source: Ref 10 Fig. 4 Subsurface fatigue origins (at arrows) in an induction-hardened 8.25 cm (3.25 in.) high-manganese medium-carbon steel axle laboratory tested in rotating...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001103
EISBN: 978-1-62708-214-3
... with a higher copper content and at least the same yield strength. Steps to exclude seawater and any possible source of ammonia from the bolt shank were also suggested. Marine environments Aluminum bronze Intergranular fracture Stress-corrosion cracking Background An aluminum bronze propeller...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0060144
EISBN: 978-1-62708-234-1
.... (a) Schematic of furnace cell showing positions of radiographic sources and films. Dimensions given in inches. (b) Radiograph of a section removed from a failed tube that contained no catalyst showing fissures near the ruptured area. (c) Same section as (b) but containing a catalyst. Fissures are visible...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003542
EISBN: 978-1-62708-180-1
... at failure. Arrows indicate locations of fracture origins. Disks are ∼50 mm (2 in.) in diameter. Source: Ref 2 Fig. 4 Both halves of a silicon nitride bar broken in bending. The tensile surfaces are in contact with each other. The fracture origin appears to be a hole (pore) in the bottom piece...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... Schematic view of a component that has fractured in multiple pieces. If chevrons are visible on the fracture surface, the sequence of crack formation can be used to obtain the crack formation sequence and the location of the initiation site. Source: Ref 25 The fracture surface orientation relative...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003572
EISBN: 978-1-62708-180-1
... > 10 −18 m 3 /Nm P , pressure; V , sliding speed; W S , specific wear rate; T , temperature. Source: Ref 1 This article briefly reviews the abrasive and adhesive wear failure of: Particulate-filled polymers Short fiber reinforced polymers (SFRP) Polymers with continuous...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003565
EISBN: 978-1-62708-180-1
... −6 Source: Ref 3 Fig. 14 Diagram of the stages of delamination caused by repeated impact on a ceramic surface. Stage 1 fracturing on the surface and crushing of debris; stage 2, extrusion of pulverized debris in interstices and compaction of a fine grained film; stage 3, nucleation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
..., electrical current, metal coupling, aggressive agents Check bulk composition and contaminants For gouging or abrasive wear: check source of abrasives Evaluate effectiveness of lubricants Seals or filters may have failed Fretting induced by slight looseness in clamped joints subject...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003538
EISBN: 978-1-62708-180-1
... of inclusions and often second-phase particles and constituents as well as grain boundaries, all of which impact the fracture nucleation and growth process. Fig. 1 Single-crystal chisel point. Source: Ref 1 Early work using metallic materials of low symmetry (rhombohedral bismuth, hexagonal...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006793
EISBN: 978-1-62708-295-2
... to the impacting material and the severity of the contact conditions. Fig. 25 Zero and measurable wear. Source: Ref 13 Most mechanical components continue to be functional beyond the zero wear limit, and their usefulness is normally connected with the loss of a specific depth of material...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006775
EISBN: 978-1-62708-295-2
... and often second-phase particles and constituents as well as grain boundaries, all of which affect the fracture nucleation and growth process. Fig. 1 Single-crystal chisel point. Source: Ref 19 Early work using metallic materials of low symmetry (rhombohedral bismuth; hexagonal close-packed...