Log in

Relevant bibliographies by topics / Beta titanium and alpha-beta titanium / Journal articles

To see the other types of publications on this topic, follow the link: Beta titanium and alpha-beta titanium.

Journal articles on the topic 'Beta titanium and alpha-beta titanium'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Beta titanium and alpha-beta titanium.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Christ, Hans Jürgen, and Peter Schmidt. "Influence of Beta Stability on Hydrogen Diffusion in Various Beta Titanium Alloys." Defect and Diffusion Forum 289-292 (April 2009): 87–94. http://dx.doi.org/10.4028/www.scientific.net/ddf.289-292.87.

Full text

Abstract:

The prediction of the applicability range of beta titanium alloys in hydrogen containing environments and the systematic study of hydrogen effects on the microstructure during heat treatment require reliable information about the hydrogen diffusion coefficient DH in the respective titanium alloy. Up to now the little information available on hydrogen diffusivity in commercial titanium alloys indicates a higher hydrogen diffusion coefficient in beta titanium alloys as compared to alpha and alpha + beta titanium alloys. In the present study, the hydrogen diffusion coefficients were determined systematically by means of electrochemically charging the half length of thin titanium rods and subsequent annealing, thereby enabling hydrogen diffusion. The Matano technique was applied in order to identify any effect of hydrogen concentration on DH. The hydrogen diffusion coefficients determined were correlated with results from microstructure examination applying optical and electron microscopy. Since molybdenum and vanadium are the most important beta-stabilizing alloying elements, binary titanium alloys of the Ti–Mo and the Ti–V systems at various contents of the respective alloying element were systematically studied in addition to commerical beta titanium alloys. The results of the experiments revealed the strong effect of beta stability and phase composition on hydrogen diffusion.

APA, Harvard, Vancouver, ISO, and other styles

2

Mantione, John, Matias Garcia-Avila, Matthew Arnold, David Bryan, and John Foltz. "Properties of Novel High Temperature Titanium Alloys for Aerospace Applications." MATEC Web of Conferences 321 (2020): 04006. http://dx.doi.org/10.1051/matecconf/202032104006.

Full text

Abstract:

The attractive combination of strength and low density has resulted in titanium alloys covering 15 to 25% of the weight of a modern jet engine, with titanium currently being used in fan, compressor and nozzle components. Typically, titanium alloys used in jet engine applications are selected from the group of near alpha and alpha-beta titanium alloys, which exhibit superior elevated temperature strength, creep resistance and fatigue life compared to typical titanium alloys such as Ti-6Al-4V. Legacy titanium alloys for elevated temperature jet engine applications include Ti-5Al-2Sn-2Zr-4Mo-4Cr, Ti-6Al-2Sn-4Zr-2Mo-0.1Si and Ti-4Al-4Mo-2Sn-0.5Si. Improving the mechanical behavior of these alloys enables improved component performance, which is crucial to advancing jet engine performance. As a world leader in supplying advanced alloys of titanium, nickel, cobalt, and specialty stainless steels, ATI is developing new titanium alloys with improved elevated temperature properties. These improved properties derive from precipitation of secondary intermetallics in alpha-beta titanium alloys. ATI has developed several new alpha-beta titanium alloy compositions which exhibit significantly improved elevated temperature strength and creep resistance. This paper will focus on the effects of chemistry and heat treat conditions on the microstructure and resulting elevated temperature properties of these new aerospace titanium alloys.

APA, Harvard, Vancouver, ISO, and other styles

3

Ravichandran, Harshini. "Beta Titanium-Review." Research Journal of Pharmacy and Technology 9, no. 11 (2016): 2020. http://dx.doi.org/10.5958/0974-360x.2016.00412.1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

van der Waal, J. C., P. J. Kunkeler, K. Tan, and H. van Bekkum. "Zeolite Titanium Beta." Journal of Catalysis 173, no. 1 (January 1998): 74–83. http://dx.doi.org/10.1006/jcat.1997.1901.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Evans, W. J. "Optimising mechanical properties in alpha+beta titanium alloys." Materials Science and Engineering: A 243, no. 1-2 (March 1998): 89–96. http://dx.doi.org/10.1016/s0921-5093(97)00784-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Thompson, Anthony W., and Tresa M. Pollock. "Creep of .ALPHA.2+.BETA. Titanium Aluminide Alloys." ISIJ International 31, no. 10 (1991): 1139–46. http://dx.doi.org/10.2355/isijinternational.31.1139.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Hall, J. A. "Fatigue crack initiation in alpha-beta titanium alloys." International Journal of Fatigue 19, no. 93 (June 1997): 23–37. http://dx.doi.org/10.1016/s0142-1123(97)00047-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Semiatin, S. L., B. C. Kirby, and G. A. Salishchev. "Coarsening behavior of an alpha-beta titanium alloy." Metallurgical and Materials Transactions A 35, no. 9 (September 2004): 2809–19. http://dx.doi.org/10.1007/s11661-004-0228-z.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Semiatin, S. L., V. Seetharaman, and I. Weiss. "The thermomechanical processing of alpha/beta titanium alloys." JOM 49, no. 6 (June 1997): 33–39. http://dx.doi.org/10.1007/bf02914711.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Jones, R. D., A. J. Knowles, and W. J. Clegg. "A binary beta titanium superalloy containing ordered-beta TiFe, alpha and omega." Scripta Materialia 200 (July 2021): 113905. http://dx.doi.org/10.1016/j.scriptamat.2021.113905.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Rao, Nageswara, and Geetha Manivasagam. "Mechanical Behaviour of Beta Titanium Alloys." Materials Science Forum 1016 (January 2021): 964–70. http://dx.doi.org/10.4028/www.scientific.net/msf.1016.964.

Full text

Abstract:

Beta titanium alloys have several attractive features; this has resulted in this group of alloys receiving much attention since 1980’s. Among the attributes which distinguish them for their superiority over other structural materials are (i) high strength to which they can be heat treated, resulting in high strength to weight ratio (ii) high degree of hardenability which enables heat treatment in large section sizes to high strength levels (iii) excellent hot and cold workability, making them as competitive sheet materials etc. The standard heat treatment consists of solution treatment in beta or alpha plus beta phase field followed by aging. However, certain aging treatments can render the materials in a state of little or no ductility; the designer has to be aware of this behaviour and has to keep away from such treatments while working with the materials. Such unfavourable aging treatments may adversely affect not only the static properties such as reduction in area and elongation in a tensile test, but also dynamic properties such as impact toughness. Results of fractographic studies are in line with those of mechanical testing. The authors would present the foregoing analysis, based primarily on the wide-ranging researches they carried out on beta titanium alloy Ti15-3 and to some extent data published by researchers on other grades of beta titanium alloys. An attempt is made to explain the mechanisms underlying the embrittlement reactions that take place in beta titanium alloys under non-optimal aging treatments.

APA, Harvard, Vancouver, ISO, and other styles

12

Kumar, K. Naresh, Pravin Muneshwar, Satish Kumar Singh, Abhay Kumar Jha, and Bhanu Pant. "Thermo Mechanical Working and Heat Treatment Studies on Meta-Stable Beta Titanium Alloy (Ti15V3Al3Sn3Cr) Plates." Materials Science Forum 830-831 (September 2015): 151–55. http://dx.doi.org/10.4028/www.scientific.net/msf.830-831.151.

Full text

Abstract:

The beta titanium alloys are highly cold workable in annealed condition, due to presence of single phase bcc structure (beta) at ambient temperature. The Ti15V3Al3Sn3Cr alloy is a metastable beta alloy retains single beta phase at ambient temperature by beta annealing. The beta alloys are most hardenable among titanium alloys, due to the formation of hard alpha (hcp) precipitates in beta (bcc) grains in solution treated and aged (STA) conditions. The present paper brings out the hot forging and rolling studies carried above beta transus temperature and correlating microstructure with mechanical properties in heat treated conditions (a. 800°C for 30 minutes and b. 800°C for 45 minutes, subsequent water quenched from single phase beta region plus aged at 482°C/538°C). The results conclude that solution treatment carried for 45 minutes and aged at 482°C/538°C achieved high tensile strength with improvement in ductility. This is due to less nucleation sites of alpha precipitates along the grain boundaries for the 45 minutes solution treated specimens. The Young’s modulus evaluated for solution treated (78GPa), aged at 482°C (105GPa) and 538°C (103GPa), the increase in aged conditions is due to the formation of alpha precipitates throughout the matrix and makes the alloy two phase alpha-beta system.Keywords: Metastable beta, alpha precipitates, solution treatment, tensile strength, Young’s modulus.

APA, Harvard, Vancouver, ISO, and other styles

13

Bryan, David. "ATI 425^® Alloy Formability: Theory and Application." Materials Science Forum 783-786 (May 2014): 543–48. http://dx.doi.org/10.4028/www.scientific.net/msf.783-786.543.

Full text

Abstract:

ATI 425® Alloy, nominal composition Ti-4.0Al-2.5V-1.5Fe-0.25O, is a new alpha/beta Ti alloy of significant commercial interest as a viable replacement for Ti-6Al-4V, CP-Ti, and other titanium alloys in a variety of aerospace applications. ATI 425® Alloy offers properties comparable to Ti-6Al-4V alloy with significant improvements in formability, both at room and elevated temperatures. The reasons for the improved formability, particularly at low temperatures, are not well understood. The development of a thorough understanding is complicated by the wide array of phases, microstructures, and deformation paths available via thermomechanical processing in alpha/beta titanium alloys. In this paper, theories of strengthening and dislocation mobility in titanium and HCP metals will be reviewed and applied to better understand why ATI 425® Alloy offers a unique combination of strength and formability not obtainable by conventional alpha/beta titanium alloys. Subsequently, the application of the improved formability to a range of product forms including sheet, tubing, and forgings will be discussed.

APA, Harvard, Vancouver, ISO, and other styles

14

Zhang, X. D., J. M. K. Wiezorek, D. J. Evanst, and H. L. Fraser. "Characterization of precipitates of Ti3Al in a titanium alloy." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 1008–9. http://dx.doi.org/10.1017/s0424820100167500.

Full text

Abstract:

A two phase alpha-beta titanium alloy, Ti-6Al-2Mo-2Cr-2Sn-2Zr-0.2Si (Ti-6-22-22S), has recently been reconsidered as a high temperature material for aircraft engine applications. This alloy exhibits specific strength and fracture toughness superior to those of Ti-6A1-4V. However, similar to other alpha-beta titanium alloys, microstructural stability is one of the major concerns regarding industrial application of Ti-6-22-22S, since changes of the microstructure during long term high temperature exposure significantly affect the performance of components. Two types of precipitates have been observed in Ti-6-22-22S alloys, namely silicides and alpha 2-Ti3Al. The presence of intermetallic precipitates, such as alpha 2-Ti3Al, in the parent alpha matrix has been reported to result in brittle behaviour of the alpha-beta alloys due to the formation of intense planar slip bands. The present paper presents results of the characterization of intermetallic alpha2-Ti3Al precipitates in the alpha phase by methods of scanning and transmission electron microscopy (SEM and TEM respectively).

APA, Harvard, Vancouver, ISO, and other styles

15

Andrade, A., A. Morcelli, and R. Lobo. "Deformation and fracture of an alpha/beta titanium alloy." Matéria (Rio de Janeiro) 15, no. 2 (2010): 364–70. http://dx.doi.org/10.1590/s1517-70762010000200038.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Kusmanov, S. A., I. V. Tambovskiy, S. A. Silkin, I. A. Kusmanova, and P. N. Belkin. "Anode plasma electrolytic borocarburising of alpha + beta-titanium alloy." Surfaces and Interfaces 21 (December 2020): 100717. http://dx.doi.org/10.1016/j.surfin.2020.100717.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Sugimoto, Takashi, Masahiko Ikeda, and Shin-ya Komatsu. "Properties and Structure Control of .ALPHA.+.BETA. Titanium Alloys." Materia Japan 37, no. 1 (1998): 27–30. http://dx.doi.org/10.2320/materia.37.27.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Ogawa, Michiharu, Tetsuya Shimizu, Toshiharu Noda, Akihiro Suzuki, and Tatsuo Fukuda. "Characteristics of Vanadium Free Alpha+Beta Titanium Alloy 'VLTi'." DENKI-SEIKO[ELECTRIC FURNACE STEEL] 79, no. 3 (2008): 253–57. http://dx.doi.org/10.4262/denkiseiko.79.253.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Froes, F. H., and H. B. Bomberger. "The Beta Titanium Alloys." JOM 37, no. 7 (July 1985): 28–37. http://dx.doi.org/10.1007/bf03259693.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Xu, Xin, Ioannis Bantounas, and David Dye. "Deformation behaviour of beta phase with similar chemical composition in beta and alpha+beta titanium alloys." MATEC Web of Conferences 321 (2020): 11082. http://dx.doi.org/10.1051/matecconf/202032111082.

Full text

Abstract:

Twinning-induced plasticity (TWIP) and transformation-induced plasticity (TRIP) in β titanium alloys have been attracting significant interest, since they offer the possibility to provide work hardening and thus, ductility. Here a quaternary Ti-Al-Cr-Mo metastable β alloy has been designed with an excellent combination of strength ductility that exploits the TWIP and TRIP effects. Its engineering yield strength, tensile strength and total elongation are 737 MPa, 999 MPa and 24%, respectively. In order to increase the yield strength but retain ductility, an attempt has been carried to design an α+β alloy with a bimodal microstructure. The composition of the β phase in the α+β alloy was tuned to provide deformation twinning of the β phase. The content of the major α and β stabilising elements, i.e. Al, Cr and Mo, in the β phase of the α+β alloy was similar to the β alloy, but the deformation twinning was not observed in the β phase. It is suggested that this may be due to over-stabilisation of the β phase and/or to the different stress/strain and dislocation distributions in the α+β alloy caused by the presence of β phase.

APA, Harvard, Vancouver, ISO, and other styles

21

Fujiwara, Hiroshi, and Kei Ameyama. "Crystallography of α Precipitates Nucleated at β Grain Boundaries in Metastable β Titanium Alloys." Journal of the Japan Institute of Metals 63, no. 2 (1999): 187–95. http://dx.doi.org/10.2320/jinstmet1952.63.2_187.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

ONODERA, Hidehiro, Katsumi OHNO, Toshihiro YAMAGATA, and Michio YAMAZAKI. "The Effect of β-stabilizer Content on Tensile Properties of α-β Titanium Alloys." Tetsu-to-Hagane 72, no. 2 (1986): 284–91. http://dx.doi.org/10.2355/tetsutohagane1955.72.2_284.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Qi, Yun Lian, Li Ying Zeng, Yu Du, She Wei Xin, Wei Liu, and Hua Mei Sun. "Effect of Heat Processing Technique on Microstructure and Mechanical Properties of Extrusion Beta Titanium Alloy Tube Blank." Materials Science Forum 941 (December 2018): 1016–22. http://dx.doi.org/10.4028/www.scientific.net/msf.941.1016.

Full text

Abstract:

The effects of extrusion temperature and heat treatment on the microstructure and mechanical properties of beta-CEZ titanium alloy tube blank were studied with an emphasis on the relationship between the heat processing technique and microscopic structure. The results show that the extruded tube blank of beta-CEZ titanium alloy at alpha-beta phase has better tensile strength and plasticity match, and the ductility of the alpha-beta phase extrusion is obviously better than that of the single beta-phase extrusion, especially the reduction of area. When the extruded tube is heat treated at 830°C and 860°C solid solution, with the increase of aging temperature, the strength of tube decreases and the plasticity increases. When the aging temperature is up to 600°C, the reduction of area of the tube increases obviously. When the extruding tube is aged at 550°C and 600°C, the strength of the tube increases and the plasticity decreases with the increase of the solid solution temperature. The titanium alloy of beta-CEZ is extruded below the phase transition point after low temperature solid solution and high temperature aging treatment, which can achieve good microstructure and performance matching. The tensile strength is greater than 1250MPa, the elongation is more than 15%, and the reduction of area is more than 40%. The microstructure was a fine and uniform equiaxed structure.

APA, Harvard, Vancouver, ISO, and other styles

24

Zherebtsov, Sergey V., Sergey Mironov, Maria A. Murzinova, S. Salishchev, and S. Lee Semiatin. "Mechanical Behaviour and Microstructure Evolution of Severely Deformed Two-Phase Titanium Alloys." Materials Science Forum 584-586 (June 2008): 771–76. http://dx.doi.org/10.4028/www.scientific.net/msf.584-586.771.

Full text

Abstract:

Microstructure evolution and mechanical behavior of alpha/beta Ti-6Al-4V (VT6) and near-beta Ti-5Al-5Mo-5V-1Cr-1Fe (VT22) titanium alloys during uniaxial compression at 600°C to a high strain of 70% was studied. The plastic-flow response for both alloys is characterized by successive stages of strain hardening, flow softening, and steady-state flow. During compression the lamellae spheroidized to produce a partially globular microstructure. Globularization in VT6 is associated with the loss of the initial Burgers-type coherency between the alpha and beta phases and the subsequent individual deformation of each phase. The misorientations of boundaries increase to the high-angle range by means of the accumulation of lattice dislocations. In VT22 alloy the alpha phase evolves similar to that in VT6 alloy, while in the beta phase mainly low-angle boundaries are observed even after 70 pct. reduction.

APA, Harvard, Vancouver, ISO, and other styles

25

Ando, Tomohiro, Koichi Nakashima, Toshihiro Tsuchiyama, and Setsuo Takaki. "Microstructure Control of High Nitrogen Alpha + Beta Type Titanium Alloy." Key Engineering Materials 345-346 (August 2007): 193–96. http://dx.doi.org/10.4028/www.scientific.net/kem.345-346.193.

Full text

Abstract:

Solution nitriding and aging treatment were applied to Ti-4mass%Cr alloy in order to fabricate a ductile high-nitrogen titanium alloy with fine (α + β) structure. The solution-nitrided specimen withα’ martensitic structure was significantly hardened by solid solution strengthening by the absorbed nitrogen. During the aging treatment, fine β grains with a size of 1 microns in thickness precipitated along the martensite-plate boundaries. Although the specimen was softened to some extent after the aging treatment, the hardness is kept much higher than that of the aged Ti-4mass%Cr alloy without solution nitriding. This indicates that the nitrogen is still in solid solution of α phase even after the aging treatment, and contributes to strengthening of the fine-structured Ti-4mass%Cr-N alloy.

APA, Harvard, Vancouver, ISO, and other styles

26

Li, Changfu, Geping Li, Yi Yang, Mesut Varlioglu, and Ke Yang. "Martensitic Twinning in Alpha + Beta Ti-3.5Al-4.5Mo Titanium Alloy." Journal of Metallurgy 2011 (June 1, 2011): 1–5. http://dx.doi.org/10.1155/2011/924032.

Full text

Abstract:

The twinning structure of the orthorhombic martensite phase in alpha + beta Ti-3.5Al-4.5Mo (wt%) titanium alloy was studied using X-ray diffraction and transmission electron microscopy by water quenching from below transus temperatures. While water quenching from 910 induced the formation of twins, quenching from 840 formed the martensite with type I twins. The effect of the principle strains on the twinning structure was discussed. As compared to the previous studies, the principle strains play an important role in the formation of the twinning type.

APA, Harvard, Vancouver, ISO, and other styles

27

Ameyama, Kei, Kimihiko Yamashita, Teruhiko Inaba, and Masaharu Tokizane. "Formation of (α+β) Microduplex Structure and Mechanical Properties in Meta-Stable β Titanium Alloys." Journal of the Japan Institute of Metals 53, no. 11 (1989): 1098–104. http://dx.doi.org/10.2320/jinstmet1952.53.11_1098.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Tabatabaei, Hamed Mofidi, Chiaki Okuyama, Tadashi Nishihara, and Takahiro Ohashi. "Friction Stir Processing Trials of SP-700 (Ti-4.5Al-3V-2Fe-2Mo) Titanium Alloy." Defect and Diffusion Forum 385 (July 2018): 349–54. http://dx.doi.org/10.4028/www.scientific.net/ddf.385.349.

Full text

Abstract:

Superplastic titanium alloy (SP-700 with nominal composition of Ti-4.5Al-3V-2Fe-2Mo) an alpha-beta alloy, with a beta-rich fine microstructure and excellent superplastic formability has wide applications in aerospace components, metal wood heads, tools, automotive components. However, very little information is available regarding friction stir processing (FSP) characteristics of this alloy. This study discusses the trials of FSP of this highly formable titanium alloy. Results are discussed in terms of hardness and temperature measurements and microstructural observations.

APA, Harvard, Vancouver, ISO, and other styles

29

USUKI, Hiroshi, Norihiko NARUTAKI, Yasuo YAMANE, and Masayoshi IWAO. "Drilling of Beta-Titanium Alloy." Journal of the Japan Society for Precision Engineering 66, no. 6 (2000): 876–80. http://dx.doi.org/10.2493/jjspe.66.876.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Gupta, Nitin Kumar, Nalin Somani, Chander Prakash, Ranjit Singh, Arminder Singh Walia, Sunpreet Singh, and Catalin Iulian Pruncu. "Revealing the WEDM Process Parameters for the Machining of Pure and Heat-Treated Titanium (Ti-6Al-4V) Alloy." Materials 14, no. 9 (April 28, 2021): 2292. http://dx.doi.org/10.3390/ma14092292.

Full text

Abstract:

Ti-6Al-4V is an alloy that has a high strength-to-weight ratio. It is known as an alpha-beta titanium alloy with excellent corrosion resistance. This alloy has a wide range of applications, e.g., in the aerospace and biomedical industries. Examples of alpha stabilizers are aluminum, oxygen, nitrogen, and carbon, which are added to titanium. Examples of beta stabilizers are titanium–iron, titanium–chromium, and titanium–manganese. Despite the exceptional properties, the processing of this titanium alloy is challenging when using conventional methods as it is quite a hard and tough material. Nonconventional methods are required to create intricate and complex geometries, which are difficult with the traditional methods. The present study focused on machining Ti-6Al-4V using wire electrical discharge machining (WEDM) and conducting numerous experiments to establish the machining parameters. The optimal setting of the machining parameters was predicted using a multiresponse optimization technique. Experiments were planned using the response surface methodology (RSM) technique and analysis of variance (ANOVA) was used to determine the significance and contribution of the input parameters to changes in the output characteristics (cutting speed and surface roughness). The cutting speed obtained during the processing of the annealed titanium alloy using WEDM was quite large as compared to the cutting speed obtained in the case of processing the pure, quenched, and hardened titanium alloys using WEDM. The maximum cutting speed obtained while processing the annealed titanium alloy was 1.75 mm/min.

APA, Harvard, Vancouver, ISO, and other styles

31

Kim, Tae Yong, Dong Geun Lee, Ka Ram Lim, Kyung Mok Cho, and Yong Tae Lee. "Microstructural Behaviors of Boron Modified LCB Titanium Alloy." Advanced Materials Research 1025-1026 (September 2014): 601–4. http://dx.doi.org/10.4028/www.scientific.net/amr.1025-1026.601.

Full text

Abstract:

Titanium has high specific strength, low elastic modulus, and good corrosion resistance. Especially, beta titanium alloys are used for jet engine, turbine blade in automobile and aerospace industries because of its good formability. Among the beta titanium alloys, LCB (Low-Cost Beta) titanium alloys were developed to make economical and mechanical advantages by not using high-cost beta stabilizer like Nb, Zr, Ta but using low-cost beta stabilizer like Mo, Fe, Cr, etc. In LCB titanium alloys, adding a small amount of boron makes grain refinement in cast ingot. This study has analyzed the changes of microstructure which can change mechanical properties after heat treatment and the plastic deformation in case of adding a small amount of boron.

APA, Harvard, Vancouver, ISO, and other styles

32

HWANG, Jung-Hwan, Tetsuya TAGAWA, Hirohito HIRA, and Takashi MIYATA. "Ductile Fracture in TiB Particle/.ALPHA.-.BETA. Titanium Alloy Matrix Composite." Journal of the Society of Materials Science, Japan 47, no. 2 (1998): 177–83. http://dx.doi.org/10.2472/jsms.47.177.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Evans, W. J., M. R. Bache, M. McElhone, and L. Grabowski. "Environmental interactions with fatigue crack growth in alpha/beta titanium alloys." International Journal of Fatigue 19, no. 93 (June 1997): 177–82. http://dx.doi.org/10.1016/s0142-1123(97)00035-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Gu, J. L., X. J. Sun, B. Z. Bai, and N. P. Chen. "Microstructural evolution during fabrication of ultrafine grained alpha+beta titanium alloy." Materials Science and Technology 17, no. 12 (December 2001): 1516–24. http://dx.doi.org/10.1179/026708301101509764.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Xu, Jianwei, Weidong Zeng, Xiaoyong Zhang, and Dadi Zhou. "Analysis of globularization modeling and mechanisms of alpha/beta titanium alloy." Journal of Alloys and Compounds 788 (June 2019): 110–17. http://dx.doi.org/10.1016/j.jallcom.2019.02.205.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Ikedaa, M., M. Ueda, and M. Ninomi. "Recent Studies and Developments in Titanium Biomaterials." MATEC Web of Conferences 321 (2020): 02004. http://dx.doi.org/10.1051/matecconf/202032102004.

Full text

Abstract:

Titanium and its alloys have a high specific strength, excellent corrosion resistance, and good biocompatibility. Therefore, these alloys are adopted as raw materials for artificial bones and joints. Furthermore, these alloys are used as materials for dental surgery. In the development of alloy design, beta-type titanium alloys that possess a lower Young’s modulus than other types of titanium alloys, e.g., Ti-6Al-4V alpha-beta-type alloys, are being actively investigated worldwide. Based on these studies, titanium-niobium-tantalum and zirconium system alloys were developed. For example, Ti-29Nb-13Ta-4.6Zr alloy has a low Young’s modulus, excellent biocompatibility, and improved mechanical properties. Many researchers are actively investigating surface modifications and surface treatments. Additive manufacturing, namely 3D printing, wherein metal powders are piled up layer by layer to produce goods without a mold, has attracted attention in many fields, including manufacture of implants, especially porous structural implants with a low Young’s modulus. It is very important that titanium and its alloys be applied to health-care goods, e.g., wheelchairs and prostheses. Therefore, we herein consider four topics: alloy development, coating and surface modification, additive manufacturing, and health care applications.

APA, Harvard, Vancouver, ISO, and other styles

37

Zhang, Jian, Hongwei Li, and Mei Zhan. "Review on globularization of titanium alloy with lamellar colony." Manufacturing Review 7 (2020): 18. http://dx.doi.org/10.1051/mfreview/2020015.

Full text

Abstract:

The globularization of titanium alloy with lamellar colony during hot working is an important way to obtain fine and homogeneous microstructure which has excellent mechanical properties. Because of its great technological importance, globularization has captured wide attention and much research. This paper conducts a systematic study on state of art on globularization of titanium alloy, which mainly includes globularization mechanism, prediction model and the effects of hot-working parameters and microstructure parameters. Firstly, the shortcomings of the well-known globularization mechanisms (dynamic recrystallization, boundary splitting, shearing mechanism and termination migration) were summarized. Moreover, the comparison and analysis of prediction models were accomplished through tabular form. In addition, the effects of hot-working parameters (strain, strain rate, temperature) and microstructure parameters (alpha/beta interface, geometry necessary dislocation and high temperature parent beta phase) were systematically summarized and analyzed. Meanwhile, this study also explores those difficulties and challenges faced by precise control on globularization. Finally, an outlook and development tendency of globularization of titanium alloy are also provided, which includes microstructure evolution of three-dimensional lamellar alpha, the relationship between lamellar colony and mechanical properties and the effect of severe plastic deformation on globularization.

APA, Harvard, Vancouver, ISO, and other styles

38

Kume, Kazuhiro, Mitsuaki Furui, Susumu Ikeno, Yusuke Ishisaka, and Masayuki Yamamoto. "Screw Form Rolling of Beta Type Titanium Alloy Preliminary Worked by Torsion." Materials Science Forum 654-656 (June 2010): 906–9. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.906.

Full text

Abstract:

Beta type titanium alloys in a cold processability are light, have high strength, excellent corrosion resistance and the same level as Young's modulus of human bone. Therefore, beta type titanium alloys are used for plant facilities such as nuclear plants, architectural materials, aircraft, car, biomaterial, medical equipment, glasses and golf club head, etc. Microstructure and mechanical properties of beta type titanium alloys processed by rolling and heat treatment have been reported [1]. Additionally, screw form rolling using beta type titanium alloys has also been reported [2]. However, the development in those characteristics after the preliminary working by torsion has been unknown.

APA, Harvard, Vancouver, ISO, and other styles

39

Kassab, Elisa J., and José Ponciano Gomes. "Assessment of nickel titanium and beta titanium corrosion resistance behavior in fluoride and chloride environments." Angle Orthodontist 83, no. 5 (February 28, 2013): 864–69. http://dx.doi.org/10.2319/091712-740.1.

Full text

Abstract:

ABSTRACT Objective: To assess the influence of fluoride concentration on the corrosion behavior of nickel titanium (NiTi) superelastic wire and to compare the corrosion resistance of NiTi with that of beta titanium alloy in physiological solution with and without addition of fluoride. Materials and Methods: NiTi corrosion resistance was investigated through electrochemical impedance spectroscopy and anodic polarization in sodium chloride (NaCl 0.15 M) with and without addition of 0.02 M sodium fluoride (NaF), and the results were compared with those associated with beta titanium. The influence of fluoride concentration on NiTi corrosion behavior was assessed in NaCl (0.15 M) with and without 0.02, 0.04, 0.05, 0.07, and 0.12 M NaF solution. Galvanic corrosion between NiTi and beta titanium were investigated. All samples were characterized by scanning electron microscopy. Results: Polarization resistance decreased when NaF concentration was increased, and, depending on NaF concentration, NiTi can suffer localized or generalized corrosion. In NaCl solution with 0.02 M NaF, NiTi suffer localized corrosion, while beta titanium alloys remained passive. Current values near zero were observed by galvanic coupling of NiTi and beta titanium. Conclusions: There is a decrease in NiTi corrosion resistance in the presence of fluoride. The corrosion behavior of NiTi alloy depends on fluoride concentration. When 0.02 and 0.04 M of NaF were added to the NaCl solution, NiTi presented localized corrosion. When NaF concentration increased to 0.05, 0.07, and 0.12 M, the alloy presented general corrosion. NiTi corrosion resistance behavior is lower than that of beta titanium. Galvanic coupling of these alloys does not increase corrosion rates.

APA, Harvard, Vancouver, ISO, and other styles

40

Gadeev, D. V., Sergey Demakov, and F. V. Vodolazskiy. "Beta-Phase Decomposition Sequence during Continuous Cooling of High-Temperature Titanium Alloy." Solid State Phenomena 265 (September 2017): 575–79. http://dx.doi.org/10.4028/www.scientific.net/ssp.265.575.

Full text

Abstract:

The diagrams of continuous cooling transformation (CCT) of β-phase decomposition for hot-rolled VT8M titanium alloy were obtained using the differential thermal analysis, scanning electron microscopy, and X-Ray diffraction (XRD) analysis for heating temperatures from 880 to 960 °C. The decomposition process was found to occur with several distinguishable stages. The transformation begins from high-temperature stage of the growing of primary alpha precipitates. At lower temperatures, it is followed by the medium-temperature stage accompanied by precipitation of grain-boundary alpha and the formation of coarse secondary alpha-lamellae. The low-temperature stage has been established to be characterized by the formation of dispersed alpha-platelets within beta-grains.

APA, Harvard, Vancouver, ISO, and other styles

41

Bania, Paul J. "Beta titanium alloys and their role in the titanium industry." JOM 46, no. 7 (July 1994): 16–19. http://dx.doi.org/10.1007/bf03220742.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Ikeda, Masahiko, Masato Ueda, R. Matsunaga, and Mitsuo Niinomi. "Phase Constitution and Heat Treatment Behavior of Ti-7mass% Mn-Al Alloys." Materials Science Forum 654-656 (June 2010): 855–58. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.855.

Full text

Abstract:

Titanium exhibits many attractive properties. It is considered to be ubiquitous since it has the 9th-highest Clarke number of all the elements. However, the principal beta-stabilizing elements for titanium can be very expensive, making many titanium alloys expensive. Manganese is a beta stabilizer for titanium alloys and it is also considered to be ubiquitous since it has the 11th-highest Clarke number of all the elements. The behavior of Ti-Mn alloys during heat treatment has been investigated and it was found that in some alloys the isothermal omega phase is precipitated. Because this phase can lead to brittleness, it is very important to suppress its precipitation. Since it is well-known that aluminum suppresses isothermal omega precipitation, we investigated the effect of adding aluminum using Ti-7mass% Mn-0, 1.5, 3.0 and 4.5mass% Al alloys by performing electrical resistivity, Vickers hardness, and X-ray diffraction measurements. In solution-treated and water-quenched 0 and 1.5 alloys, only beta phase was identified, while hcp martensite and bate phase were identified in 3.0 and 4.5Al alloys. The resistivities at room and liquid-nitrogen temperatures were found to increase monotonically with increasing Al content. Isothermal  precipitation was suppressed by aluminum addition, while alpha precipitation was accelerated by Al addition.

APA, Harvard, Vancouver, ISO, and other styles

43

Lee, Sung-Yul, Osamu Taguchi, and Yoshiaki Iijima. "Diffusion of Aluminum in β-Titanium." MATERIALS TRANSACTIONS 51, no. 10 (2010): 1809–13. http://dx.doi.org/10.2320/matertrans.m2010225.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Gurgel, Júlio A., Célia R. M. Pinzan-Vercelino, and John M. Powers. "Mechanical properties of beta-titanium wires." Angle Orthodontist 81, no. 3 (May 2011): 478–83. http://dx.doi.org/10.2319/070510-379.1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Karasevskaya, O. P., O. M. Ivasishin, S. L. Semiatin, and Yu V. Matviychuk. "Deformation behavior of beta-titanium alloys." Materials Science and Engineering: A 354, no. 1-2 (August 2003): 121–32. http://dx.doi.org/10.1016/s0921-5093(02)00935-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

KIMURA, Yoshiharu, and Akio OCHI. "1004 Grooving of Beta-titanium Alloy." Proceedings of Conference of Chugoku-Shikoku Branch 2001.39 (2001): 357–58. http://dx.doi.org/10.1299/jsmecs.2001.39.357.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Kelkar, K., and A. Mitchell. "Beta Fleck formation in Titanium Alloys." MATEC Web of Conferences 321 (2020): 10001. http://dx.doi.org/10.1051/matecconf/202032110001.

Full text

Abstract:

Beta fleck is a troublesome segregation defect in many titanium alloys. It has previously been investigated by several authors and appears to have two formation mechanisms, one similar to that of “freckle” in steels and nickel-base alloys, the other arising in the “crystal rain” effect seen in conventional steel ingots. The freckle defect has been extensively studied and several theories developed to account for its formation in both remelted ingots and directional castings. In this work we compare the findings of investigations into the nickel-base freckle formation mechanism to similar conditions in the vacuum arc remelting of titanium alloys. We find that there are strong similarities between the beta fleck formation conditions and the parameters related to the Rayleigh Number criterion for freckle formation. In particular, the dendritic solidification parameters and the density dependence on segregation coefficients both fit well with the conditions proposed to characterise freckle formation. The second formation mechanism arises in the columnar to equiax transition in solidification. The condition for the avoidance of the defect in the two cases is the shown to be the same, namely the use of a very low VAR melting rate, but that it is unlikely to be 100% successful in preventing defect formation. We propose that the techniques presently in use for alloy development in the superalloy field through optimising the composition for minimum sensitivity to freckle formation should be applied to the formulation of future titanium alloys; also that attention should be paid to developing the PAM process to provide suitable solidification conditions for defect absence in a final ingot.

APA, Harvard, Vancouver, ISO, and other styles

48

Boyer, Rodney R. "Aerospace applications of beta titanium alloys." JOM 46, no. 7 (July 1994): 20–23. http://dx.doi.org/10.1007/bf03220743.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Schutz, R. W. "Environmental behavior of beta titanium alloys." JOM 46, no. 7 (July 1994): 24–29. http://dx.doi.org/10.1007/bf03220744.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Coakley, James, Vassili A. Vorontsov, Kenneth C. Littrell, Richard K. Heenan, Masato Ohnuma, Nicholas G. Jones, and David Dye. "Nanoprecipitation in a beta-titanium alloy." Journal of Alloys and Compounds 623 (February 2015): 146–56. http://dx.doi.org/10.1016/j.jallcom.2014.10.038.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!