processing of alpha beta titanium alloys

An Overview of the Thermomechanical Processing of α/β ...

Current understanding of the principles underlying the thermomechanical processing (TMP) of α/β titanium alloys is reviewed. Attention is focused on the formulation of constitutive descriptions ...

Process for preparation of near-alpha titanium alloys ...

In summary, the present invention relates the creep improvement to the forge and heat-treat processings of near-α titanium alloys. For (α+β) forgings, the best creep can be achieved by a β-solution treatment relatively high in the β-field (β t +100 F.) to (β t +150 F.), air-cooling, followed by a conventional ageing at 110 F. for about 8 ...

Alpha Titanium Vs. Beta Titanium Vs. Commercially Pure ...

09. Alpha Titanium Vs. Beta Titanium Vs. Commercially Pure Titanium. Titanium is a popular transitional metal that is used in the manufacturing of many products including jewelry, surgical tools, tennis racks, and much more. It has the strength of steel at half the weight and is twice as strong as aluminum at only a little over 50% of the weight.

Processing of α+β titanium alloys

2010-7-19 · Processes for forming an article from an α+β titanium alloy are disclosed. The α+β titanium alloy includes, in weight percentages, from 2.90 to 5.00 aluminum, from 2.00 to 3.00 vanadium, from 0.40 to 2.00 iron, and from 0.10 to 0.30 oxygen.

Alpha-Beta Titanium Alloys

The α – β alloy Ti–6Al–4V is the most popular of all titanium alloys, representing more than 50% of the titanium market ( Figures 6b and 6c ). The α – β alloys can be solution heat-treated, quenched, and aged to medium-/high-strength levels and have good formability, but the creep resistance and weldability are lower than the α and ...

TI-IE RELATIONSHIP OF PROCESSING/MICROSTRUCTIJRE ...

2018-4-14 · The first is beta processing which is followed by a high alpha-beta anneal (to produce lenti­ cular primary alpha) and an aging/stabilization treatr.ient (to adjust the strength level). Alternately, the alloy may be alpha-beta processed. In this case, a duplex high-alpha-beta …

Thermomechanical processing of a high strength metastable ...

2018-4-1 · FAST and TMP processing parameters will be determined for a currently-used beta titanium alloy, in order to exploit the process for a low-cost beta titanium alloy particulate feedstock in the future. The aim of this paper is to investigate the effectiveness of the FAST- forge process for a high-strength metastable beta titanium alloy, Ti-5Al ...

(PDF) Phase Transformations and Characterization of α + β ...

Commercial ( alpha plus beta )-titanium alloys are generally classified into three microstructural groups according to the geometrical arrangement of the two phases alpha and beta : lamellar ...

US10502252B2

A method for increasing tensile strength of a cold workable alpha-beta titanium alloy comprises solution heat treating a cold workable alpha-beta titanium alloy in a temperature range of T β -106° C. to T β -72.2° C. for 15 minutes to 2 hours; cooling the alpha-beta titanium alloy at a cooling rate of at least 3000° C./minute; cold working the alpha-beta titanium alloy to impart an ...

THERMOMECHANICAL PROCESSING OF ALPHA-BETA TITANIUM ALLOYS ...

We claim: 1. A method of refining alpha-phase grain size in an alpha-beta titanium alloy workpiece, the method comprising: forging an alpha-beta titanium alloy at a first forging temperature within a first forging temperature range, wherein forging the alpha-beta titanium alloy at the first forging temperature comprises at least one pass of both upset forging and draw forging, and wherein the ...

PROCESSING OF ALPHA/BETA TITANIUM ALLOYS

The α+β titanium alloy includes, in weight percentages, from 2.90 to 5.00 aluminum, from 2.00 to 3.00 vanadium, from 0.40 to PROCESSING OF ALPHA/BETA TITANIUM ALLOYS - …

An Overview of the Thermomechanical Processing of α/β ...

2020-1-29 · Current understanding of the principles underlying the thermomechanical processing (TMP) of α/β titanium alloys is reviewed. Attention is focused on the formulation of constitutive descriptions for plastic flow under hot-working conditions, the evolution of microstructure, the occurrence of defects, and novel/emerging TMP techniques. With regard to constitutive behavior, descriptions of the ...

Processing alpha-beta titanium alloys by beta as well as ...

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Thermomechanical processing of alpha titanium alloys—an ...

Thermomechanical processing (TMP) is associated with two major requirements: (1) the production of usable shapes through primary working (ingot breakdown) and secondary mill operations (hot rolling or forging); and (2) the optimization of mechanical properties through microstructure control during the different stages of the thermomechanical process.

Titanium Alloys

2004-8-17 · Alpha Beta alloys are heat treatable and most are weldable. Typical properties include: • Strength levels are medium to high • High temperature creep strength is not as good as most alpha alloys • Cold forming may be limited but hot forming qualities are normally good • Many alloys can be superplastically formed The most commonly used alpha beta alloy is Ti6Al4V, developed in many ...

Thermomechanical processing of alpha titanium alloys : an ...

DOI: 10.1016/s0921-5093(98)01155-1 Corpus ID: 138904386. Thermomechanical processing of alpha titanium alloys : an overview @inproceedings{Weiss1999ThermomechanicalPO, title={Thermomechanical processing of alpha titanium alloys : an overview}, author={I. Weiss and S. Semiatin}, year={1999} }

Thermomechanical processing of alpha titanium alloys—an ...

1999-5-15 · Like other classes of titanium alloys, alpha alloys are more difficult to process in comparison to aluminum and steels. The typical hot working approach for processing alpha alloys comprises primary ingot breakdown in the beta phase field and secondary working to produce a specific shape by either hot forging, rolling, etc. below or above the beta transus temperature (T β).

US20160138149A1

Processes for forming an article from an α+β titanium alloy are disclosed. The α+β titanium alloy includes, in weight percentages, from 2.90 to 5.00 aluminum, from 2.00 to 3.00 vanadium, from 0.40 to 2.00 iron, and from 0.10 to 0.30 oxygen. The α+β titanium alloy is cold worked at a temperature in the range of ambient temperature to 500° F., and then aged at a temperature in the range ...

An Overview of the Thermomechanical Processing of α/β ...

2020-1-29 · Current understanding of the principles underlying the thermomechanical processing (TMP) of α/β titanium alloys is reviewed. Attention is focused on the formulation of constitutive descriptions for plastic flow under hot-working conditions, the evolution of microstructure, the occurrence of defects, and novel/emerging TMP techniques.

The Variant Selection Process in an Alpha/Beta Titanium Alloy

2007-6-26 · Crystallographic texture in titanium alloys plays a key role in the design and service life of aerospace components. The texture of the hexagonal-closed-packed (hcp) alpha-phase forming during decomposition of the high-temperature, body-centered-cubic (bcc) beta phase typically follows a Burgers-type orientation relationship in which there are twelve distinct possible variants that can form ...

The thermomechanical processing of alpha/beta titanium alloys

In this article, the thermomechanical processing of ingot-metallurgy alpha/beta titanium alloys is summarized, with special emphasis on microstructure evolution and workability considerations. Primary hot working dealing with the conversion of ingot structures to …

The thermomechanical processing of alphabeta titanium alloys

2010-10-27 · The Thermomechanical Processing of Alpha/Beta Titanium Alloys S.L. Semiatin, V. S e e t h a r a m a n, and I. W e i s s I Editor''s Note: This paper is a distillation of the keynote address "Hot Working of Titanium Alloys--An C~,erview" presented by S ...

US3748194A

A PROCESS FOR IMPROVING THE TOUGHNESS AND PROPERTY UNIFORMITY OF THE HIGH STRENGTH ALPHA-BETA TITANIUM FORGED ALLOYS BY A SPECIFIC HEAT TREATMENT SCHEDULE WHICH INCLUDES A SHORT ISOTHERMAL...

Alpha-Beta Alloy Titanium

Alpha-Beta Alloy Titanium – Grade 12 GRADE 12: Ti0.3Mo0.8Ni. Titanium Processing Center is a fully-stocked global distributor of titanium products, and we keep our inventory updated with a wide range of options.Grade 12 titanium is very durable alloy that is highly weldable and still provides a lot of strength at high temperatures.

β-transformed domains enhanced tensile properties and the ...

Morphology of α phase has a significant influence on mechanical properties of near α titanium alloys. Generally, near α titanium alloys exhibit four typical microstructures, i.e. equiaxed, bimodal, basket-weave and Widmannstatten microstructures, depending on hot processing histories and heat treatments [7,8]. And the lamellar structures ...

US20200032833A1

A method for increasing tensile strength of a cold workable alpha-beta titanium alloy comprises solution heat treating a cold workable alpha-beta titanium alloy in a temperature range of T β −106° C. to T β −72.2° C. for 15 minutes to 2 hours; cooling the alpha-beta titanium alloy at a cooling rate of at least 3000° C./minute; cold working the alpha-beta titanium alloy to impart an ...

Microstructural stability and thermomechanical processing ...

One of the main objectives during primary processing of titanium alloys is to reduce the prior beta grain size. Producing an ingot with smaller prior beta grain size could potentially eliminate some primary processing steps and thus reduce processing cost. Trace additions of boron have been shown to decrease the as-cast grain size in alpha + beta titanium alloys.

Processing of alpha/beta titanium alloys

2019-6-13 · Processes for forming an article from an α+β titanium alloy are disclosed. The α+β titanium alloy includes, in weight percentages, from 2.90 to 5.00 aluminum, from 2.00 to 3.00 vanadium, from 0.40 to 2.00 iron, and from 0.10 to 0.30 oxygen. The α+β titanium alloy is cold worked at a temperature in t

Thermomechanical processing of beta titanium alloys—an ...

1998-3-15 · Like many beta titanium alloys, Ti–10–2–3 exhibits a room temperature fatigue endurance limit of ≈0.5–0.6 of its ultimate tensile strength . Hence, high-cycle-fatigue strengths of the order of 700 MPa, or levels not possible in conventional alpha/beta titanium alloys, have been found for this beta alloy .

PROCESSING-STRUCTURE-PROPERTY RELATIONSHIPS IN …

2018-4-14 · Most of the commercial titanium alloys currently designed for high performance aerospace components have been alpha-beta (e.g., Ti-6Al-4V) and near-alpha (e.g., Ti-6Al-2Sn-4Zr-2Mo) alloys. Commercial emphasis for the manufacture of these al­ loy products has …

STANDARDS FOR ALPHA-BETA TITANIUM ALLOYS

2018-4-14 · STANDARDS FOR ALPHA-BETA TITANIUM ALLOYS R.M. Duncan IMI Titanium, IMI Kynoch Ltdo, Birmingham, England W. Knorr ... applications, particularly in the chemical processing and aerospace fields, has created a need for standardisation within Europe of supply conditions for titanium …

WO2012012102A1

[0002] Titanium and titanium-based alloys are used in a variety of applications due to the relatively high strength, low density, and good corrosion resistance of these materials.

Hot Plasticity of Alpha Beta Alloys | IntechOpen

2012-3-16 · 2. Deformation behaviour of titanium and its alloys. Titanium has two allotropic forms: Ti α with hexagonal close packed (hcp) crystal structure (up to 882.5 °C) and Ti β with body centered cubic (bcc) crystal structure (between 882.5 and 1662 …

Thermomechanical processing of alpha-beta titanium alloys

2018-10-12 · One embodiment of a method of refining alpha-phase grain size in an alpha-beta titanium alloy comprises working an alpha-beta titanium alloy at a first working temperature within a first temperature range in the alpha-beta phase field of the alpha-beta titanium alloy. The alloy is slow cooled from the first working temperature. On completion of working at and slow cooling from the first ...

Alpha-Beta Titanium Alloys

Beta alloys are one of the most promising groups of titanium alloys in terms of processing, properties, and potential applications. This group of alloys (including beta, metastable beta, and beta-rich alpha/beta compositions) represents the highest range of strength, fatigue resistance, and environmental resistance among all titanium materials.

Processing of (α/β) and (α2/γ) Titanium Alloys to Tailor ...

Request PDF | Processing of (α/β) and (α2/γ) Titanium Alloys to Tailor Their Microstructure for Performance | An objective of processing is to shape the microstructure of a structural material ...

EP2596143B1

Processing of alpha/beta titanium alloys Download PDF Info ... Authority EP European Patent Office Prior art keywords titanium alloy temperature cold range cold working Prior art date 2010-07-19 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as ...