Searched for: subject%3A%22Titanium%255C+alloys%252C%22
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Long, Jianjun (author), Wei, Xuejiao (author), Dong, Yiting (author), Cheng, Xixi (author), Li, Hao (author), Xu, X. (author), Zhu, Minhao (author)
A systematic experimental investigation concerning the fretting-induced tribo-chemical state and its effect on the fretting wear behavior of titanium alloys under the vacuum atmospheres (4 × 10<sup>–3</sup> Pa and 4 × 10<sup>–1</sup> Pa) in different fretting regimes is reported. An in situ XPS analysis tester was developed to capture the...
journal article 2024
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Li, Cong (author), Ding, Zhili (author), van der Zwaag, S. (author)
Isothermal hot compression tests of two promising new titanium alloys (Ti-10 V-1Fe-3Al and Ti-10 V-2Cr-3Al) are performed using a TA DIL805D deformation dilatometer at temperatures in and above the two-phase α + β region (730–880 °C) at strain rates ranging from 10<sup>−3</sup> to 10<sup>−1</sup> s<sup>−1</sup>. Results show that the flow...
journal article 2021
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Polozov, Igor (author), Kantyukov, Artem (author), Goncharov, Ivan (author), Razumov, Nikolay (author), Silin, Alexey (author), Popovich, V. (author), Zhu, Jia-Ning (author), Popovich, Anatoly (author)
In this paper, laser powder-bed fusion (L-PBF) additive manufacturing (AM) with a high-temperature inductive platform preheating was used to fabricate intermetallic TiAl-alloy samples. The gas atomized (GA) and mechanically alloyed plasma spheroidized (MAPS) powders of the Ti-48Al-2Cr-2Nb (at. %) alloy were used as the feedstock material. The...
journal article 2020
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Li, C. (author), Li, Hu (author), van der Zwaag, S. (author)
Multi-pass-dual-indenter (MPDI) scratch tests with various loading conditions were performed on two newly developed titanium alloys (Ti–10V–1Fe–3Al and Ti–10V–2Cr–3Al) to investigate their abrasion resistance under repetitive local sliding contact. A technically pure titanium sample was used as the reference. Various microstructures were...
journal article 2019
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Xu, L. (author)
This research focuses on the stability of three metastable ? titanium alloys – Ti-10V-1Fe-3Al (Ti-1013), Ti-10V-2Cr-3Al (Ti-102Cr3) and Ti-10V-2Fe-3Al-B (Ti-1023B). In the first stage of the work, new ?+(?+?) heat treatment schemes were designed on the basis of Thermo-Calc® simulations and previous research work and carried out to such an extent...
master thesis 2015
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Neelakantan, S. (author)
Titanium alloys possess good corrosion properties, high temperature stability and high strength-to-weight ratio. However, they fall short in providing the optimum strength-ductility relation in the most demanding structural applications, including the aerospace sector. Inspired by the possibility of enhancing the strength-ductility relation in...
doctoral thesis 2010
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Neelakantan, S. (author)
Titanium alloys possess good corrosion properties, high temperature stability and high strength-to-weight ratio. However, they fall short in providing the optimum strength-ductility relation in the most demanding structural applications, including the aerospace sector. Inspired by the possibility of enhancing the strength-ductility relation in...
doctoral thesis 2010
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Perego, R.C. (author), Blaauw, M. (author)
Hydrogen concentrations of 0 up to 350?mg/kg in a titanium alloy have been determined at National Institute of Standards and Technology (NIST) with neutron incoherent scattering (NIS) and with cold neutron prompt gamma activation analysis. The latter is a well-established technique, while the former was demonstrated earlier at NIST by counting...
journal article 2005
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Biglari, M.H. (author), Brakman, C.M. (author), Mittemeijer, E.J. (author), Van der Zwaag, S. (author)
journal article 1995
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Wanhill, R.J.H. (author), Looije, C.E.W. (author)
The constant amplitude and flight simulation (TURBISTAN) fatigue crack growth behaviour of Ti-6A1-4V fan disc forgings tested in the AGARD engine disc cooperative test programme was investigated by fractographic and microstructural analysis. The crack growth curve shapes and fractographic characteristics were similar. Transitions in the fatigue...
report 1991
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Wanhill, R.J.H. (author)
An example test plan for sustained load fracture control verification is presented. Two sustained load fracture problems have been chosen: stress corrosion cracking of titanium alloy Ti-6Al-4V, and gaseous hydrogen embrittlement of the nickel-base superalloy Inconel 718. The plan is worked out in detail, including materials and heat treatments,...
report 1989
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Wanhill, R.J.H. (author)
The opportunities for sustained load fracture control in spacecraft are indicated. Emphasis is given to verification by small-scale laboratory testing.
report 1989
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van Leeuwen, H.P. (author)
The literature concerning the application of fracture mechanics to the growth of creep cracks is discussed. As an introduction it is shown that linear elastic fracture mechanics have been applied successfully to the residual strength of brittle materials crack growth due to stress corrosion and crack growth due to fatigue. Next the methods are...
report 1983
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Wanhill, R.J.H. (author)
Flight simulation fatigue crack propagation tests with gust spectrum loading were carried out on laminates of (i) aluminium alloy 2024-T3/carbon-epoxy, (ii) aluminium alloy 7475-T761/carbon-epoxy and (iii) titanium alloy Ti-6Al-4V/carbon-epoxy with nominal weight savings of 30% and 40% as compared to equivalent 2024-T3 Alclad and 7475-T761...
report 1982
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Wanhill, R.J.H. (author), Jongebreur, A.A. (author), Morgan, E. (author), Moolhuijsen, E.J. (author)
Flight simulation fatigue crack propagation tests on single and double element lugs made from 2024-T351 and TOT5-TT351 aluminium alloys and Ti-6AJ.-UV titanium alloy were carried out. Initial damage was a throughthickness notch at one side of each hole in one element. Results showed that crack propagation lives for double element lugs were much...
report 1981
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Schijve, J. (author)
Paper presented at the 16th ICAP Conference, Brussels, 14 and 15 May 1979.
report 1979
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Wanhill, R.J.H. (author)
Fracture toughness tests on two high strength titanium alloys, IMI 550 and 551, showed that the higher strength alloy, IMI 551, had a much lower toughness. The alloys were very similar in microstructure and fracture mechanisms. A number of model formulations for predicting fracture toughness were compared with the experimental results. This...
report 1978
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Wanhill, R.J.H. (author)
Flight simulation fatigue crack propagation tests with gust spectrum loading were carried out on 2024-T3/carbon-epoxy, 7475-T76l/carbon-epoxy and Ti-6Al-4V/carbon-epoxy laminates with nominal weight savings of -30% as compared to equivalent 2024-T3 panels. The performance of the 2024-T3/carbon-epoxy laminates was much superior to those of the...
report 1978
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Wanhill, R.J.H. (author), Döker, H. (author)
report 1977
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Wanhill, R.J.H. (author)
Plight simulation fatigue crack propagation tests with gust spectrum loading were carried out on 2024-T3/carbon-epoxy, 7475-T761/carbon-epoxy and Ti-6Al-4V/carbon-epoxy laminates with nominal weight savings of 30% as compared to equivalent 2024-T3 panels. The performance of the 2024-T3/ carbon-epoxy laminates was much superior to those of the...
report 1977
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