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near-alpha titanium alloys

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Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006253
EISBN: 978-1-62708-169-6
... alloys, namely, alpha and near-alpha titanium alloys, beta and near-beta titanium alloys, and alpha-beta titanium alloys. It also describes the general microstructural features of titanium alloys. microstructure physical properties titanium titanium alloys TITANIUM AND ITS ALLOYS are used...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006270
EISBN: 978-1-62708-169-6
... a detailed discussion on the effects of heat treatment on the mechanical properties for three general classes of titanium alloys, namely, alpha and near-alpha titanium alloys, alpha-beta alloys, and beta alloys. alpha and near-alpha titanium alloys alpha-beta alloys fatigue crack propagation fatigue...
Image
Published: 01 June 2016
Fig. 23 Curves depicting stress versus cycles to failure ( R = –1) for Ti-1100 near-alpha titanium alloy. (a) Full lamellar microstructures showing range of effects of prior-beta grain sizes. (b) Duplex microstructures showing range of effects of primary alpha content More
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001416
EISBN: 978-1-62708-173-3
... Abstract This article focuses on the physical metallurgy and weldability of four families of titanium-base alloys, namely, near-alpha alloy, alpha-beta alloy, near-beta, or metastable-beta alloy, and titanium based intermetallics that include alpha-2, gamma, and orthorhombic systems...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003677
EISBN: 978-1-62708-182-5
..., or fretting. Titanium alloys can be classified into three primary groups such as titanium alloys with hexagonal close-packed crystallographic structure; beta titanium alloys with body-centered cubic crystallographic structures; and alpha + beta titanium alloys including near-alpha and near-beta titanium...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001081
EISBN: 978-1-62708-162-7
... at the service temperature in question. Between 200 and 315 °C (400 and 600 °F), the deformation of titanium (and some titanium alloys with an alpha or near-alpha crystal structure) loaded to the yield point does not increase with time. Thus, creep strength is seldom a factor in this range. Above 315 °C (600 °F...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006283
EISBN: 978-1-62708-169-6
... Abstract This article provides a detailed discussion on heat treatment of titanium alloys such as alpha alloys, alpha-beta alloys, and beta and near-beta alloys. Common processes include stress-relief, annealing, solution treating, aging, quenching, and age hardening. It provides information...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001415
EISBN: 978-1-62708-173-3
... Abstract This article emphasizes the physical metallurgy of titanium and titanium alloys along with their microstructural response to fusion welding condition. The titanium alloys are classified into unalloyed or commercially pure titanium, alpha and near-alpha alloys, alpha-beta alloys...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003140
EISBN: 978-1-62708-199-3
... phases and martensitic transformations formed in titanium alloy systems. Information on commercial and semicommercial grades and alloys of titanium is tabulated. The article also discusses the different grades of titanium alloys such as alpha, near-alpha alloys, alpha-beta alloys, beta alloys...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004003
EISBN: 978-1-62708-185-6
... grain boundaries and thus effectively limit the size of the beta grains. As an example, Fig. 7 shows the microstructure of a titanium alloy processed near the beta transus to achieve a fine beta grain size with a low percentage of primary alpha. Fig. 7 Micrograph of an IMI 834 alloy component...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005409
EISBN: 978-1-62708-196-2
... of near-beta alloys are typically in the range of 700 to 850 °C ( Ref 1 ). Near-alpha and alpha/beta alloys have large amounts of alpha-stabilizing elements such as aluminum; the beta transi of near-alpha and alpha/beta alloys are usually of the order of 950 to 1050 °C ( Ref 2 ). Processing of Titanium...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0009239
EISBN: 978-1-62708-173-3
... Abstract This article discusses the effects of brazing temperature and thermal treatment on structure and mechanical behavior of different classes of titanium base metals such as commercially pure (CP) titanium, alpha or near-alpha alloys, alpha-beta alloys, and beta alloys. The classification...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002409
EISBN: 978-1-62708-193-1
... separately. Titanium alloy designations and tensile strengths Table 2 Titanium alloy designations and tensile strengths Designation Tensile strength (min) 0.2% yield strength (min) Impurity limits, wt%, max MPa ksi MPa ksi N C H Fe O Alpha and near-alpha alloys Ti-5Al...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005146
EISBN: 978-1-62708-186-3
... Abstract This article describes different types of titanium alloys, including alloy Ti-6Al-4V, alpha and near-alpha alloys, and alpha-beta alloys. It explains the formability of titanium alloys with an emphasis on the Bauschinger effect. The article provides information on the tool materials...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003728
EISBN: 978-1-62708-177-1
... that take place in the titanium-aluminum system. The article also describes two approaches for controlling the orientation of the high-temperature alpha phase to achieve the required lamellar orientation by directional solidification in order to improve the strength and ductility of titanium-aluminum alloys...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005674
EISBN: 978-1-62708-198-6
... with beta stabilizers, titanium alloys may retain some β phase at room temperature. Thus, titanium alloy compositions are classified as near-alpha (α) alloys, beta (β) alloys, or alpha-beta (α + β) alloys. Of the three broad classes of titanium alloys, grouping is according to the levels of alpha or beta...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005401
EISBN: 978-1-62708-196-2
... role with regard to the formation of deformation texture in both alpha and alpha/beta titanium alloys. The nature of prior deformation and the allotropic transformation affect transformation-texture development in both alpha/beta and near-beta titanium alloys. In the broad sense, crystallographic...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004001
EISBN: 978-1-62708-185-6
... alloy compositions are quoted in atomic percent. Ingot-Metallurgy Processing of Near-Gamma Titanium-Aluminide Alloys In broad terms, the ingot-metallurgy processing of near-gamma titanium aluminide alloys bears a number of similarities to the processing of conventional alpha/beta titanium alloys...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003779
EISBN: 978-1-62708-177-1
... the alpha-beta class, an alloy that contains less than 2 to 3% beta, such as Ti-8Al-1Mo-1V, may also be referred to as a “near-alpha” or “super-alphaalloy. The principal alloying element in alpha alloys is aluminum (oxygen is the principal alloying element in commercially pure titanium), but certain...
Image
Published: 01 January 2005
Fig. 13 Comparison of measured and predicted equiaxed alpha grain-growth kinetics for a near-gamma titanium aluminide alloy annealed in the alpha + gamma phase field. Source: Ref 46 More