Effect of Cold Machining Process on the Property and Microstructure of Ti-5Mo-5V-8Cr-3Al Strip

2014 ◽  
Vol 788 ◽  
pp. 134-137 ◽  
Author(s):  
Pei Tong Ni ◽  
Li Peng Zhou ◽  
Bao Liang Bai ◽  
Ming Chen Han ◽  
Mei Sheng Zhu
Keyword(s):  
Solution Treatment ◽  
Aging Treatment ◽  
High Strength ◽  
Machining Process ◽  
Beta Titanium Alloy ◽  
Cold Forming ◽  
Corrugated Shell ◽  
Beta Titanium ◽  
Gas Quenching ◽  
Metastable Beta

Metastable beta titanium alloy Ti-5Mo-5V-8Cr-3Al, with high-strength, favorite ductility and outstanding capacity of cold forming and welding, has been found the applications in sheet metal component, pressure vessel, corrugated shell and cold heading rivet at the temperature lower than 350°C. In the present paper, the effect of cold machining deformation rate and heat treatment process on the properties and microstructures of Ti-5Mo-5V-8Cr-3Al strip were investigated. The results revealed that excellent comprehensive mechanical properties could be achieved with the alloy by reasonable cold machining process and with solution treatment at 800°C followed by gas quenching. Upon a solution and aging treatment at 480°C, the alloy performed favorite plasticity and high ultimate tensile strength of 1250MPa.

Influence of Solution Conditions on Aging Response of Ti-3.5Al-5Mo-4V-2Cr-1Fe-2Zr-2Sn Titanium Alloy

2010 ◽  
Vol 146-147 ◽  
pp. 1815-1820 ◽  
Author(s):  
Peng Ge
Keyword(s):  
Titanium Alloy ◽  
Solution Treatment ◽  
High Strength ◽  
Age Hardening ◽  
Air Cooling ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Aging Response ◽  
Aging Conditions ◽  
Metastable Beta

Ti-3.5Al-5Mo-4V-2Cr-1Fe-2Zr-2Sn titanium alloy is a new high strength metastable beta titanium alloy which was designed according to the principle of ‘near critical molybdenum equivalent and multicomponent strengthening’. The effect of solution treatment on aging responses of the new alloy including room temperature tensile properties and microstructures were investigated. There is a tendency that the tensile strength is increasing with the increase of solution temperatures on the same aging conditions and water quenching from solution temperatures can produce higher age hardening effect than that treated by air cooling. The results revealed that the specific aging response of the new alloy is from the high driving force of phase precipitation together with the effect of excess vacancies.

Decomposition of the metastable beta titanium alloy Ti-15-3

1983 ◽  
Vol 41 ◽  
pp. 264-265
Author(s):  
Y. L. Chen ◽  
S. Fujlshiro
Keyword(s):  
Low Cost ◽  
High Strength ◽  
Alpha Phase ◽  
Thick Sheet ◽  
Omega Phase ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Beta Matrix ◽  
Metastable Beta ◽  
Very High

Metastable beta titanium alloys have been known to have numerous advantages such as cold formability, high strength, good fracture resistance, deep hardenability, and cost effectiveness. Very high strength is obtainable by precipitation of the hexagonal alpha phase in a bcc beta matrix in these alloys. Precipitation hardening in the metastable beta alloys may also result from the formation of transition phases such as omega phase. Ti-15-3 (Ti-15V- 3Cr-3Al-3Sn) has been developed recently by TIMET and USAF for low cost sheet metal applications. The purpose of the present study was to examine the aging characteristics in this alloy.The composition of the as-received material is: 14.7 V, 3.14 Cr, 3.05 Al, 2.26 Sn, and 0.145 Fe. The beta transus temperature as determined by optical metallographic method was about 770°C. Specimen coupons were prepared from a mill-annealed 1.2 mm thick sheet, and solution treated at 827°C for 2 hr in argon, then water quenched. Aging was also done in argon at temperatures ranging from 316 to 616°C for various times.

Mechanical Behaviour of Beta Titanium Alloys

2021 ◽  
Vol 1016 ◽  
pp. 964-970
Author(s):  
Nageswara Rao ◽  
Geetha Manivasagam
Keyword(s):  
Heat Treatment ◽  
Titanium Alloys ◽  
Dynamic Properties ◽  
Solution Treatment ◽  
Weight Ratio ◽  
High Strength ◽  
Static Properties ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Beta Titanium Alloys

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.

Beta-titanium biomedical alloy: effect of thermal processing on mechanical properties

2012 ◽  
Vol 57 (3) ◽  
pp. 753-757 ◽  
Author(s):  
K.V. Sudhakar ◽  
K. Konen ◽  
K. Floreen
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Testing Machine ◽  
Solution Treatment ◽  
High Strength ◽  
Fracture Morphology ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Digital Microscope ◽  
Aging Conditions

A new β-titanium alloy (Ti-3Al-5V-6Cr-3Mo-3Zr) was investigated as a function of heat treatment to evaluate its mechanical properties. The cold drawn beta-titanium alloy was subjected to β-annealing as well as solution treatment and aging treatments. The mechanical properties were evaluated using MTS Landmark-servo hydraulic Universal Testing Machine. The beta-titanium alloy demonstrated an excellent combination of strength and ductility for both β-annealing and solution treatment and aging conditions. The influence of thermal treatments on microstructure was studied with HiRox digital microscope. The fracture morphology investigated revealed predominantly cup and cone/dimpled fracture surface features demonstrating excellent toughness in addition to high strength and low stiffness that are suitable for biomedical applications.

ALLVAC 38-644

Alloy Digest ◽  
2004 ◽  
Vol 53 (7) ◽  
Keyword(s):  
High Strength ◽  
Heat Treating ◽  
Aged Condition ◽  
Beta Titanium Alloy ◽  
Solution Treated Condition ◽  
Solution Treated ◽  
Treated Condition ◽  
Beta Titanium ◽  
Metastable Beta ◽  
Strength And Ductility

Abstract Allvac 38-644 is a metastable beta titanium alloy known for its ductility in the solution treated condition and its high strength and ductility in the solution treated and aged condition. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: TI-134. Producer or source: Allvac Metals Company.

TIMETAL 15-3

Alloy Digest ◽  
1992 ◽  
Vol 41 (11) ◽  
Keyword(s):  
Titanium Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Aged Condition ◽  
Beta Titanium Alloy ◽  
Solution Treated Condition ◽  
Solution Treated ◽  
Treated Condition ◽  
Beta Titanium ◽  
Metastable Beta

Abstract TIMETAL 15-3 is a metastable beta titanium alloy that offers substantial weight reductions over other engineering materials. In the solution treated condition, it has excellent cold formability; in the aged condition, it has high strength. TIMETAL 15-3 is usually acceptable for use at temperatures up to 550 F. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on forming and heat treating. Filing Code: Ti-101. Producer or source: Titanium Metals Corporation (Timet).

CARTECH Ti 15V-3Cr-3Sn-3Al

Alloy Digest ◽  
2021 ◽  
Vol 70 (7) ◽  
Keyword(s):  
High Strength ◽  
Heat Treating ◽  
Beta Titanium Alloy ◽  
Treated Condition ◽  
Beta Titanium ◽  
Heat Treated ◽  
Technology Corporation ◽  
Heat Treated Condition ◽  
Carpenter Technology Corporation ◽  
Metastable Beta

Abstract CarTech Ti 15V-3Cr-3Sn-3Al (UNS R58153) is a metastable beta titanium alloy that offers substantial weight reduction in comparison with other engineering materials. If used in the solution heat treated condition, the alloy has excellent cold formability. In the aged condition, the alloy has high strength. It is acceptable for use up to 230 °C (550 °F). This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ti-180. Producer or source: Carpenter Technology Corporation.

On the mechanism of crater wear in a high strength metastable beta titanium alloy

Wear ◽  
2021 ◽  
pp. 203998
Author(s):  
Alex Graves ◽  
Susanne Norgren ◽  
Wei Wan ◽  
Sandeep Singh ◽  
Mikael Kritikos ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
High Strength ◽  
Beta Titanium Alloy ◽  
Crater Wear ◽  
Beta Titanium ◽  
Metastable Beta

Ti-8Mo-8V-2Fe-3Al

Alloy Digest ◽  
1973 ◽  
Vol 22 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Titanium Alloy ◽  
High Temperature ◽  
High Strength ◽  
Heat Treating ◽  
Beta Titanium Alloy ◽  
Temperature Performance ◽  
Beta Titanium ◽  
Metastable Beta

Abstract Ti-8Mo-8V-2Fe-3A1 is a metastable beta titanium alloy that can be age hardened to high-strength levels. Aging in the range of 800-1200 F partially transforms beta to alpha to produce the high strength. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ti-68. Producer or source: Titanium Metals Corporation of America.

The Study on Microstructure and Properties of a New Metastable Beta Titanium Alloy after Aging Treatment

2011 ◽  
Vol 311-313 ◽  
pp. 782-786
Author(s):  
Xun Yao ◽  
Shuang Jin Liu ◽  
Chun Xiang Cui ◽  
Fen Fei Cai
Keyword(s):  
Titanium Alloy ◽  
Aging Treatment ◽  
Vacuum Furnace ◽  
Test Results ◽  
Beta Titanium Alloy ◽  
Precipitated Phase ◽  
Arc Melting ◽  
Beta Titanium ◽  
Final Aging ◽  
Metastable Beta

New metastable beta titanium alloy Ti-4Al-2.7V-12Mo-10Nb-1Zr-0.2Cr was carried out in the arc melting vacuum furnace. The microstructure and mechanical properties of a new metastable beta titanium alloy Ti-4Al-2.7V-12Mo-10Nb-1Zr-0.2Cr were compared at different aging temperature and time. The growth mechanism of α phase is analysed by comparing the morphology of the precipitated phase at different temperature. Test results indicate that titanium alloy Ti-4Al-2.7V-12Mo-10Nb-1Zr-0.2Cr has the best property through two-step aging treatment. The tensile strength of titanium alloy Ti-4Al-2.7V-12Mo-10Nb-1Zr-0.2Cr after final aging treatment achieves 1180MPa with 8% elongation trough tensile test. The strengthing mechanism was also discussed in this paper.

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