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alpha-2 alloys

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550299
EISBN: 978-1-62708-307-2
...-aluminum phase diagram, focusing on the properties, compositions, and microstructures of alpha-2 Ti3Al alloys. It then describes the properties, microstructures, and compositions of orthorhombic, gamma, and near-gamma alloys as well as the processing methods and procedures normally used in their production...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480141
EISBN: 978-1-62708-318-8
... microstructure of several titanium alloys. Fig. 7.32 Ti-6Al-4V bar. (a) Acicular alpha (transformed beta) and prior-beta grain boundaries in bar forged 75% from 1065 °C (1950 °F), reheated at 730 °C (1350 °F) for 2 h, and air cooled. (b) Platelike and equiaxed alpha with some beta present in bar forged 75...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480075
EISBN: 978-1-62708-318-8
... expected upon cooling a given composition from a known temperature ( Ref 4.1 , 4.3 ). The example cited previously for Fig. 4.1 shows that for alloy A at temperature T 2 , there is 61% alpha phase containing 1.5% element A and 39% beta phase containing 13% element A. A cooling rate slow enough to...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120131
EISBN: 978-1-62708-269-3
... potential service temperatures for the titanium aluminides currently are expected to range from 600 to 760 °C (1110–1400 °F). The gamma class of aluminides offers more oxidation resistance than alpha-2 alloys. Although alloy developments were tried to further increase the oxidation resistance of gamma...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550223
EISBN: 978-1-62708-307-2
...-annealed Ti-6Al-4V to cast and cast plus hot isostatic pressed HIP Ti-6Al-4V data. Source: Ref 5.7 Table 5.2 Typical fracture toughness values of high-strength titanium alloys Alloy Alpha morphology Yield strength Fracture toughness ( K Ic ) MPa ksi MPa·m 1/2 ksi·in. 1/2...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480113
EISBN: 978-1-62708-318-8
... and stress-rupture characteristics. Generally, the larger the amount of alpha phase within the microstructure, the higher the creep strength. Many alpha alloys contain small amounts (1 to 2%) of beta stabilizers and are more accurately called alpha-beta-lean alloys. For simplicity, here they are...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480095
EISBN: 978-1-62708-318-8
... influence the results. The predominant mode of plastic deformation in titanium is slip. The most common crystallographic slip planes in hexagonal (alpha) titanium are basal, prismatic, and pyramidal. The planes involved during deformation depend on alloy composition, temperature, grain size, and crystal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610209
EISBN: 978-1-62708-303-4
... 5 Fracture toughness levels of Ti-6Al-4V alloy in different microstructural conditions Microstructure 0.2% yield strength, MPa (ksi) Elongation, % K Ic , MPa · (m) 1/2 [ksi · (in.) 1/2 ] Beta processed (aligned lamellar alpha) 903 (131) 12 78 (72) Alpha + beta processed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170417
EISBN: 978-1-62708-297-6
... unalloyed (commercially pure) grades (see Table 2 ) vary from 170 MPa (25 ksi) to 480 MPa (70 ksi), simply as a result of variations in the interstitial and impurity levels. Alpha alloys that contain aluminum, tin, and/or zirconium are preferred for high-temperature, as well as cryogenic applications...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120139
EISBN: 978-1-62708-269-3
... to Ti-0.2Pd. Table A.2 Alpha and near-alpha titanium alloys Alloy, UNS number, common names General description Applications Common alpha and near-alpha alloys Ti-3Al-2.5V, UNS R56320, tubing alloy, ASTM grade 9, Half 6-4 Ti-3Al-2.5V has excellent cold formability and 20...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090221
EISBN: 978-1-62708-266-2
... Alpha Brass , Philos. Mag. , Vol 13 ( No. 121 ), 1966 , p 167 10.1080/14786436608211994 7.17 Pugh E.N. and Green J.A.S. , The Role of Cupric Complex Ions in the Dissolution and Stress-Corrosion Cracking of α-Brass in Nontarnishing Aqueous Ammonia , Metall. Trans. , Vol 2...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480265
EISBN: 978-1-62708-318-8
.... Electron beam welding (EBW) is suitable for joining titanium and its alloys. The process is applicable to a range of thicknesses from approximately 0.04 to 50 mm (0.0015 to 2 in.). Only hard-vacuum welding has been adapted to titanium alloys. In such welds, there is no contamination from external sources...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120005
EISBN: 978-1-62708-269-3
... produce the alloy in the appropriate condition for the intended application, as well as the heat treatments that are applied to the alloy. Heat treatment of alpha-beta alloys seems to produce microstructures that are substantially the same as structures produced, for example, by forging the same alloy in...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310351
EISBN: 978-1-62708-326-3
... metastable crystal structure. Martensitic phases in nonferrous alloys consist of two primary types: those produced by rapid quenching (athermal martensite) and those produced by applying external stress (stress-induced martensite). Some examples of each are listed in Table 2 . The internal microstructure of...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060333
EISBN: 978-1-62708-261-7
... (magnesium intensifies precipitation) and with strengthening from Mg 2 Si 4 xxx Silicon Work hardened and solid-solution strengthened 4 xx.x Silicon The silicon-aluminum eutectic enhances castability. If high strength and hardness are needed, magnesium additions make these alloys heat treatable...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440231
EISBN: 978-1-62708-262-4
... information on the heat treating of nonferrous alloys and the properties that may be obtained. References 1. Heat Treating , Vol 4 , ASM Handbook , ASM International , 1991 2. Brooks C.R. , Heat Treatment, Structure and Properties of Nonferrous Alloys , American...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170457
EISBN: 978-1-62708-297-6
... Stress-Corrosion Cracking of Some Copper-base Alloys , Trans. AIME , Vol 185 , 1949 , p 100 10.1007/BF03398082 2. Pugh E.N. , Craig J.V. , and Sedriks A.J. , The Stress-Corrosion Cracking of Copper, Silver, and Gold Alloys , in Proc. Conf. Fundamental Aspects of Stress...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
... treatment. Steel is notable, because it is very responsive to hardening and strengthening by heat treatment. References 1. Campbell F.C. , Elements of Metallurgy and Engineering Alloys , ASM International , 2008 10.31399/asm.tb.emea.9781627082518 2...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230145
EISBN: 978-1-62708-298-3
.... Table 12.1 Mechanical properties of selected amorphous alloys with comparison to a beryllium amorphous alloy Alloy Hardness (H v ), kg/mm 2 Young’s modulus ( E ), × 10 3 kg/m 2 Density (ρ), g/cm 3 Acoustic velocity ( VE ), × 10 5 cm/s E /H Pd 80 Si 20 490 8.97 10.3 2.92 18.3...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060013
EISBN: 978-1-62708-261-7
... large forces of attraction with typical bond lengths on the order of 1 to 2 Å, while the weaker secondary bonds have larger bond lengths of 2 to 5 Å. While it is convenient to discuss the four major types of bonding separately, it should be recognized that although metallic bonding may be predominant...