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tantalum alloys

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003552
EISBN: 978-1-62708-180-1
... formation Transition, rare earth, alkaline-earth metals, and their alloys (includes titanium, tantalum, zirconium, uranium, and thorium) Brittle hydrides often form preferentially where the stress is highest. The first three types are usually observed at ambient temperatures and are closely...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006784
EISBN: 978-1-62708-295-2
... reactions of hydrogen with matrix or alloy elements form high-pressure pockets of gases other than molecular hydrogen. Cracking from hydride formation Transition, rare earth, alkaline-earth metals, and their alloys (includes titanium, tantalum, zirconium, uranium, and thorium) Brittle hydrides often...
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
...-8 Wrought high nitrogen stainless steel ISO 5832-9 Wrought titanium 5-aluminum 2.5-iron alloy ISO 5832-10 Wrought titanium 6-aluminum 7-niobium alloy ISO 5832-11 Wrought cobalt-chrome-molybdenum alloy ISO 5832-12 Pure tantalum for applications in surgical implants ISO 13782...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001705
EISBN: 978-1-62708-234-1
... to burst at a stress (86,700 psi) within the nominal range (80,000–90,000 psi). Further analysis showed very shallow alloying with lead on the outer surface and insignificant corrosion on the inner surface, [ 1 ]. First Failure In January 1979 one of the AISI 316 coils was perforated during removal...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001357
EISBN: 978-1-62708-215-0
... of the blade material, electron probe microanalysis was first conducted . The major elements found were nickel, chromium, and cobalt; titanium, aluminum, and molybdenum were minor alloying elements. Tungsten, niobium, and tantalum were not detected. A more accurate chemical analysis revealed the following...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... Abstract High-temperature corrosion can occur in numerous environments and is affected by various parameters such as temperature, alloy and protective coating compositions, stress, time, and gas composition. This article discusses the primary mechanisms of high-temperature corrosion, namely...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003555
EISBN: 978-1-62708-180-1
... be caused by mechanical damage via spallation or cracking of the oxide film from cyclic oxidation of chromia and alumina oxides formed on nickel-base alloys due to the mismatch of thermal expansion coefficients between the oxide and the base alloy ( Ref 7 ). Small additions of lanthanum, yttrium, tantalum...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
... in galvanic couples. Tantalum repair patches in glass-lined vessels have been destroyed by contact with cooling coils or agitators made of less noble alloys. Tantalum is susceptible to attack by alkalis, such as may form in the vicinity of a cathode in neutral solutions. Noble Metals The term noble...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
... themselves become embrittled in galvanic couples. Tantalum repair patches in glass-lined vessels have been destroyed by contact with cooling coils or agitators made of less noble alloys. Tantalum is susceptible to attack by alkalis, such as may form in the vicinity of a cathode in neutral solutions. Noble...
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
..., but have also been adapted for biomedical applications. The development of titanium alloys especially intended to be used in living bodies began with the introduction of new alloys using biocompatible β stabilizer elements, such as iron, tantalum, zirconium, tin, and niobium. [ 3 ] The manufacturing...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001268
EISBN: 978-1-62708-215-0
...Chemical analysis Table 1 Chemical analysis Element Specification AMS 5596 range, wt% Composition of individual leafs, wt% Leaf Number 1 2 3 6 7 Nickel 50–55 53.1 52.3 52.6 52.4 52.7 Chromium 17–21 18.4 18.6 18.5 18.6 18.5 Columbium + Tantalum 4.75...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006807
EISBN: 978-1-62708-329-4
..., it is essential to consider these possibilities when determining the short-term test conditions. Creep deformation mechanism maps, developed by Ashby and coworkers, identify the dominant deformation mechanism for a given stress-temperature combination for various metals and alloys ( Ref 5 ). Further details...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003545
EISBN: 978-1-62708-180-1
... by the elastic limit for a given alloy. Creep deformation may produce sufficiently large changes in the dimensions of a component to either render it useless for further service or cause fracture. When excessive creep deformation causes the material to reach or exceed some design limit on strain, the term creep...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003517
EISBN: 978-1-62708-180-1
... principal types. Primary carbides, which form when carbon reacts with strong carbide-forming elements such as tantalum and titanium during the solidification of the molten alloy, have the formula MC, where M is the metallic element. Typically, such carbides have a blocky or scriptlike morphology, as shown...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... creep failure is used. For example, a creep failure of a cobalt-base alloy turbine vane is shown in Fig. 1 . The bowing is the result of a reduction in creep strength at the higher temperatures from overheating. Fig. 1 Creep damage (bowing) of a cobalt-base alloy turbine vane from overheating...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... analysis, metallographic analysis, and simulated-service tests. It provides case studies for the analysis of SCC service failures and their occurrence in steels, stainless steels, and commercial alloys of aluminum, copper, magnesium, and titanium. aluminum alloys austenitic stainless steel carbon...
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
... of proposed SCC propagation mechanisms. It discusses the processes involved in diagnosing SCC and the prevention and mitigation of SCC. Several engineering alloys are discussed with respect to their susceptibility to SCC. This includes a description of some of the environmental and metallurgical conditions...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001819
EISBN: 978-1-62708-180-1
...-chromium-molybdenum alloy: ASTM F 75-82, ISO 5832/IV (1978) Wrought cobalt-base alloys: ASTM F 90-82, ASTM F 562-84, ISO/DIS 5832/6, ASTM F 563-83, ISO/DIS 5832/8 Certain applications—for example, in the skull—involve use of tantalum and niobium, both of which have high corrosion resistance...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006771
EISBN: 978-1-62708-295-2
... rate on a reference material, such as Ta 2 O 5 on tantalum metal or thermally grown SiO 2 on single-crystal silicon. Practical maximum profile depths are on the order of a couple micrometers or less. Compositional depth profiling is particularly effective for thin-film analysis and for solving...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001662
EISBN: 978-1-62708-236-5
... Abstract A steam heated exchanger was designed for concentrating sulfuric acid. Tantalum was selected for the tubing and the tube sheet liner because of its outstanding corrosion resistance. However, although the exchanger passed a searching shop inspection, it leaked during site testing...