1-20 of 29 Search Results for

alpha titanium alloys

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001667
EISBN: 978-1-62708-235-8
... of the titanium cylinder weldment was performed. Titanium is highly reactive with interstitial elements such as hydrogen, nitrogen, carbon, and oxygen. Each interstitial element affects the microstructural characteristics of titanium and titanium alloys. Oxygen is an alpha phase stabilizer...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0047645
EISBN: 978-1-62708-229-7
...Abstract Abstract An outer fan-duct assembly of titanium alloy Ti-5Al-2.5Sn (AMS 4910) for a gas-turbine fan section cracked 75 mm (3 in.) circumferentially through a repair weld in an arc weld in the front flange-duct segment. Examination of the crack with a binocular microscope revealed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0090030
EISBN: 978-1-62708-217-4
... near the bore emanating from a hard alpha (HA) defect. Such defects can result from occasional upsets during the vacuum melting of titanium. These nitrogen-rich alpha titanium anomalies are brittle and often have associated microcracks and microvoids. A probabilistic damage tolerance approach...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001782
EISBN: 978-1-62708-241-9
... are very sensitive to surface damage, as a dramatic reduction in fatigue properties can result if conventional machining operations are not carefully controlled. In addition, when welding alpha–beta titanium alloys, shielding atmospheres are required to inhibit weld contamination and the development...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001801
EISBN: 978-1-62708-241-9
.... orthopedic fixation device fracture surface damage titanium alloy notches roughness metallography fatigue crack growth rates ASTM F136 (alpha-beta titanium alloy) UNS R56401 Introduction Investigation Discussion Conclusions References References 1. http://www.scoliosis.org...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001313
EISBN: 978-1-62708-215-0
... of the tube and XRD analysis of crystalline compounds in the deposit indicated the possible presence of ammonia. Failure was attributed to stress-corrosion cracking resulting from ammonia in the cooling water. It was recommended that an alternate tube material, such as a 70Cu-30Ni alloy or a titanium alloy...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006760
EISBN: 978-1-62708-295-2
... the composition as well as the properties of the surface layer. The alpha case in titanium (oxygen contamination) becomes very brittle and can act as a damage-initiation site ( Fig. 24 ). Fig. 24 (a) Etched Waspaloy superalloy. (b) Ti-6Al-4V with alpha case. 2% HF etch Austenitic stainless steels...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001660
EISBN: 978-1-62708-236-5
... thread rolling. The result of this channeling of dislocations is a faceted fracture appearance as observed in some locations on the shear bands of the fractured pins ( Figure 3 ). The shear bands form during the rolling of the pin threads. Titanium alloys are known to have a high propensity for shear...
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
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001609
EISBN: 978-1-62708-229-7
... for sensitization; therefore, alpha-prime precipitation is generally associated with in-service exposure, while sensitization may develop during short-term exposure, such as welding. The combined effect of these precipitates results in 475 °C (885 °F) embrittlement. 3 , 4 Sensitization makes ferritic Cr alloys...
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
... discussed. orthopedic implant devices fracture corrosion inclusions and stress gaps medical materials cracking fretting pitting fractography fracture toughness Ti6Al4V (titanium-aluminum-vanadium alloy) UNS R56406 316L stainless steel (austenitic wrought stainless steel) UNS S31603...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001649
EISBN: 978-1-62708-234-1
...Abstract Abstract Two titanium alloy wing attachment bolts from a commercial jetliner failed during the course of a routine service operation. Failure of the bolts occurred during the re-torque process as the wing was being reattached. Metallurgical failure analysis indicated that the fracture...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006777
EISBN: 978-1-62708-295-2
.... (a) Rock candy appearance from atmospheric stress-corrosion cracking of a high-strength aluminum alloy with equiaxed grains. Original magnification: 130×. (b) Intergranular fracture along the part line of an aluminum forging Fig. 5 Tensile test fracture surface of a high-purity, coarse-grained Al...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001558
EISBN: 978-1-62708-217-4
... , East Killbride, Glasgow, Scotland ( 1963 ) 7. Unpublished Data, Rocketdyne Div. , Rockwell International ( 1979 ) 8. Smith H. R. and Piper D. E. , “Stress-Corrosion Cracking in High Strength Steel and in Titanium and Aluminum Alloys” , 48 – 49 , Naval Research Laboratory...
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
... on fracture path Effects on fracture mechanics properties Phase morphology in α-β titanium alloys Change from α and β grains to α in β Crack branching and irregularity greatly increased Higher K Ic and K Issc Increased resistance to fatigue crack growth Large particles in steels...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003514
EISBN: 978-1-62708-180-1
... for certifying new designs of titanium rotors (see the section “Case Histories: Examples of the Use of Probabilistic Analysis” and “Example 1: Probabilistic Damage Tolerance Analysis of Gas Turbine Rotors” in this article) ( Ref 25 , 26 ). Elements of Probabilistic Analysis A probabilistic analysis...
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
... analysis, alloy selection, improper mechanical/thermal processing, improper assembly, and failure to accommodate an adverse operating environment. Fractography provides a unique tool to determine potential causal factors, such as: Whether a material was used above its design stress Whether...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... caustic solutions High-nickel alloys High-purity steam Alpha brass Ammoniacal solutions, chloramine, amine Aluminum alloys Aqueous chloride, bromide, and iodide solutions Titanium alloys Aqueous chloride, bromide, and iodide solutions; organic liquids; N 2 O 4 Magnesium alloys Aqueous...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
... is relatively free from those inclusions that may cause unwanted discontinuities. Air-melted alloys commonly contain inclusions. Vacuum- or electroslag-remelted alloys more commonly contain nonmetallic inclusions, such as titanium carbonitrides or carbides, when carbon or the hardening element form precipitate...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003512
EISBN: 978-1-62708-180-1
.... , Chell G.G. , and Lee Y. , “A Probabilistically-Based Damage Tolerance Analysis Computer Program for Hard Alpha Anomalies in Titanium Rotors,” Paper 2000-GT-0421, IGTI, ASME Turbo Expo , 2000 23. “Aircraft Structural Integrity and Failure Analysis of Structural Components,” Southwest...