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titanium composites

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Published: 01 June 2019
Fig. 6 Elemental and composite images of inclusion cluster identified as titanium carbides on left and uranium oxides on right along the fracture surface. More
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001359
EISBN: 978-1-62708-215-0
.... Pertinent Specifications The blades were made of titanium alloy IMI 550, with a nominal composition of 4% Al, 4% Mo, were manufactured by the closed-die forging process. Targeting bosses flash buttons at the extremities of the blades serve as reference points for dimensional control and are later...
Image
Published: 01 June 2019
Fig. 5 Composite X-ray imaging of inclusions adjacent to the internal crack that were identified as titanium carbides. More
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001803
EISBN: 978-1-62708-241-9
... Abstract Metallurgical SEM analysis provides many insights into the failure of biomedical materials and devices. The results of several such investigations are reported here, including findings and conclusions from the examination a total hip prosthesis, stainless steel and titanium compression...
Image
Published: 15 May 2022
Fig. 12 Scanning electron microscopy micrographs of the worn surfaces of (a) the compositions 5 vol% polytetrafluoroethylene + 5 vol% graphite + 15 vol% short carbon fiber (SCF) and (b) 5 vol% nano- titanium oxide + 5 vol% graphite + 15 vol% SCF at 2 MPa and 1 m/s. Adapted from Ref 56 More
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001804
EISBN: 978-1-62708-241-9
... to degradation (corrosion and wear), bioadhesion (to bones), and ease of manufacture by different thermomechanical processes and availability/low cost [ 3 – 5 ]. The requirements of chemical composition, microstructure and mechanical properties are well established in standards edited by international...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001685
EISBN: 978-1-62708-235-8
... to confirm the presence of carbides. During the metallographic evaluation of the failed tensile specimen, a cluster of inclusions observed below the surface but near a tear or discontinuity in the material. Composite X-ray imaging techniques identified these inclusions (shown in Fig. 5 ) as titanium-rich...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001394
EISBN: 978-1-62708-234-1
... to have the following composition: Per cent. Chromium 23.0 Nickel 18.0 Molybdenum 1.8 Silicon 1.2 Manganese 0.75 Titanium Nil Niobium Nil As far as it was possible to ascertain, this particular composition does not conform to a standard specification...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c9001690
EISBN: 978-1-62708-226-6
... of the fracture. 25 Finally, the chemical composition of the material was not in accordance with the minimum requirements of ISO 5832-1 ( Table 1 ). Titanium Oral Maxillofacial Plate The oral maxillofacial plate for jaw reconstruction failed along one of the notch-like recesses ( Fig. 5a ). The chemical...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001717
EISBN: 978-1-62708-217-4
... boundaries. EDS was subsequently used to determine the chemical composition of precipitates noted within the grain boundaries consisted of a small amount of titanium, but not any carbon or nitrogen. EDS was subsequently conducted on the intergranular fracture surface, in an attempt to locate Ti (C, N...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091703
EISBN: 978-1-62708-229-7
... the ammonia (prohibitively expensive in cost and time) or using an alternate material (such as a 70Cu-30Ni alloy or a more expensive titanium alloy) that is resistant to ammonia corrosion as well as to chlorides and sulfur species. Air cooling Ammonia Hydroelectric generators Hydroelectric power...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001838
EISBN: 978-1-62708-241-9
... in the circumferential direction and penetrated nearly 2 mm into the pipe wall. The pipes were made of titanium-stabilized austenitic stainless steel X6CrNiMoTi17-12-2. Six hypotheses were considered during the investigation, which ultimately concluded that the failure was caused by liquation cracking due to overheating...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006828
EISBN: 978-1-62708-329-4
... sections in this article. Lastly, it is common for titanium brazed joints to have a composite structure consisting of intermetallics, solid solutions, and eutectic constituents. Phase compositions and the volume of different phases depend on brazing temperature, holding time, cooling rate, width...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001753
EISBN: 978-1-62708-241-9
... composition of the sand-cast component was identified via optical emission spectroscopy and is comparable to an aluminum sand-cast alloy, AA 712.0. Metallographic evaluation via optical microscopy and scanning electron microscopy revealed a high degree of porosity in the microstructure as well as the presence...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091533
EISBN: 978-1-62708-217-4
... (0.032 in.) thick, and the V-section was 1.3 mm (0.050 in.) thick; both were made of 19-9 DL heat-resisting alloy with the following composition: Element Composition, % Carbon 0.3 Manganese 1.1 Silicon 0.6 Chromium 19 Nickel 9 Molybdenum 1.25 Tungsten 1.2 Niobium...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001328
EISBN: 978-1-62708-215-0
... analysis showed base metal grain boundary precipitates to be primarily chromium carbides, but some titanium carbides were also observed. Failure was believed to result from the synergism of thermally driven tube distortion, which resulted in over-stress, and from the intergranular oxidation products...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001457
EISBN: 978-1-62708-219-8
... it to be an austenitic nickel-chromium stainless steel, stabilized by titanium and of the free machining type. Multiple transgranular cracking characteristic of failure from stress-corrosion cracking, was present to an extensive degree. It was considered probable that there had been slight leakage of water from...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c9001610
EISBN: 978-1-62708-222-8
... standards ( Table 2 ). Two examples of highly biocompatible piercing materials, which do not present cytotoxic elements in their chemical composition, are pure titanium 7 and polytetrafluoroethylene (PTFE). 22 Conclusions None of the body-piercing materials studied are in accordance with ISO...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c9001606
EISBN: 978-1-62708-226-6
.... Recommendations to improve the fixation implant design are suggested, and the potential benefits of the substitution of titanium or a titanium alloy for the stainless steel are discussed. Biomaterials Biomechanics Fatigue crack growth Medical device 300 series Fatigue fracture The use...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006933
EISBN: 978-1-62708-395-9
... analyses are performed on metal and plastic materials center primarily on the techniques used to evaluate the composition and structure of the material. Unlike metals, polymers have a molecular structure that includes characteristics such as polymer functional groups, molecular weight, molecular weight...